1993 C4 Corvette

1993 Corvette Contents
Overview VIN Numbers
Specifications Factory Options
Price & Options Image Gallery
Engine & Transmission Recalls
– Exterior/Interior Colors Maintenance Schedule
– Wheels, Suspension & Brakes Service Bulletins
Performance DIY Service Guide

1993 Corvette Overview

When Harley Earl first envisioned his two-seat roadster in 1953, it is unlikely that even he would have been able to fathom the long term commercial success the Corvette would achieve.  Both on the road and on the racetrack, the Corvette had demonstrated again and again that it could compete with some of the fiercest automotive competitors from around the world.

Model: 1993 Corvette
Generation: C4 Corvette
Type: 2 Door Coupe, 2 Door Convertible
Available Colors: Arctic White, Black, Bright Aqua Metallic, Polo Green II Metallic, Competition Yellow, Ruby Red, Torch Red, Black Rose Metallic, Dark Red Metallic, Quasar Blue Metallic
Engine: 350CI, 300 Horsepower, Multi-Port Fuel Injected LT1 V8 Small Block Engine.
VIN: 1G1YY23PXP5100001 – 1G1YY23PXP5121142 (Corvette Coupe & Convertible)
1G1YZ23J3P5800001 – 1G1YZ23J3P5800448 (ZR-1 Corvette)
Transmission: 4-speed automatic (standard), 6 speed manual (optional)
Original Price: Orig. Base Price: $34,595.00 (Coupe), $41,195.00 (Convertible)
Units Produced: 21,590
Specs: 1993 Corvette Spec List

From its earliest days racing against the Porsche 356 at the 24 Hours of LeMans to competing at some of the most grueling road courses of the day, the Corvette had become a world leader that had celebrated decades long victories in sales, showmanship and performance.  Now, as the Corvette prepared to turn 40, Chevrolet decided to honor the milestone by releasing a special edition Corvette to pay homage to the American legend.

When Harley Earl first envisioned his two-seat roadster in 1953, it is unlikely that even he would have been able to fathom the long term commercial success the Corvette would achieve.

Both on the road and on the racetrack, the Corvette had demonstrated again and again that it could compete with some of the fiercest automotive competitors from around the world.

From its earliest days racing against the Porsche 356 at the 24 Hours of LeMans to competing at some of the most grueling road courses of the day, the Corvette had become a world leader that had celebrated decades long victories in sales, showmanship and performance.

Now, as the Corvette prepared to turn 40, Chevrolet decided to honor the milestone by releasing a special edition Corvette to pay homage to the American legend.

While the official 40th Anniversary Edition Corvette was ordered by many Corvette purists to celebrate the momentous occasion, there was another Corvette package offered in 1993 that catered more to the performance fanatics.

Florida-based Greenwood Automotive Performance unveiled a bolstered Corvette coupe.  Named only with the distinction “G572” (so named for the size of the engine), the Corvette featured functional aero body panels and a reinforced chassis that were specifically modified to support the massive torque put on them by the car’s 575 horsepower engine.

Under the car’s hood lived a 9.4-Liter (572 cubic inch) Chevy V-8 that was mated to a GM four-speed automatic transmission.  When this special edition Corvette was run with the throttle full open, the Corvette could accelerate from zero-to-60 miles per hour in just 3.4 seconds, and best a quarter mile at just 11.5 seconds at a speed of 135 miles per hour.

Additionally, when running fully open, the Corvette could hit and maintain a speed of 218 miles per hour.  Of course, achieving that level of incredible power has always been an expensive undertaking, as was the case with the G572, which carried a price tag of $179,333.

G572 Greenwood Corvette.
G572 Greenwood Corvette.

Sadly, the base model coupes received virtually no cosmetic upkeep from the previous model year – but with just two exceptions:  First, while the wheels on the Corvette included the same rotary cut pattern as that of the 1992 Corvette, the wheels still reflected a different physical appearance because they were machined differently than the wheels found on the 1992 Corvette.

DID YOU KNOW: The 1993 ZR-1 Chevy Corvette received a huge power boost jumping 15 horsepower from 385hp to 405hp. Torque was also improved from 370 lb-ft to 385 lb-ft. This was accomplished through porting changes on the head and valvetrain, an electric EGR valve improving emissions, platinum tipped spark plugs, and four bolt main bearing caps.

Additionally, the 1993 Corvette would be the last model year that consumers could order cloth seats as an option, and it was a sound decision on the part of GM to eliminate this RPO from all future models, especially given the fact that only 426 Corvettes were ordered with that option.

Finally, the size of the front wheels on the base model Corvette coupe and convertible were reduced in size from 9.5×17 to 8.5×17 and the corresponding front tire sizes were reduced from P275/40ZR17 to P255/45ZR17.  Similarly, the rear tire size was increased from P275/40ZR17 to P285/40ZR17.  For Corvettes that included RPO Z07, 9.5×17 wheels and P275/40ZR17 tires were used on both the front and rear.

Good Year Eagle GS-C Tires
Good Year Eagle GS-C Tires were introduced in 1993.

As in years past, the tires were courtesy of Good Year and were directional, asymmetric Eagle GS-C’s that were utilized exclusively on the Corvette during their first year of production.

While new, these tires did utilize a similar tread pattern as in earlier models, though the tires designed for the 1993 Corvette were better equipped to handle the cornering stresses that occurred on both the inner and outer edges of the tire.

Having specially balanced tires was a tremendous improvement to the Corvette’s drivability, though given the unique nature of each tire, owners had to be cautious about replacement given that no tire was interchangeable with another.

Mechanically the 1993 Corvette Coupe also remained virtually unchanged, although some small, but significant improvements had been made to make the Corvette continually more competitive on the racetrack.

While the LT-1’s horsepower remained at 300, several modifications were made to make the engine quieter.  First, the heat shield design was changed from a single piece stamping to a two-piece sandwich type shield that was self-damping.

Second, the LT-1 camshaft exhaust lobe profile was modified to reduce the exhaust valve closing velocity.  Additionally, a shortening of the inlet stroke duration allowed a longer exhaust stroke duration with no increase in overlap area between the two strokes.  A side benefit of this modification resulted in a small, but significant, increase in torque from 330 to 340 lbs/ft of torque at 3,600rpms.

Third, new thermostat polyester valve covers replaced the 19841992 magnesium covers.  These covers were isolated from the heads by a gasket in the normal location, but also by gaskets under the heads of the mounting hardware.

The PKE Keyless Entry System.
The PKE Keyless Entry System.

Perhaps one of the most notable improvements to the 1993 Corvette was the introduction of a passive keyless entry (PKE) system.   Unlike other keyless entry systems, which required the vehicle owner/operator to unlock the vehicle by pressing a “LOCK/UNLOCK” button on a small transmitter, the PKE system automatically communicated with the Corvette when the driver was in the general proximity of the vehicle.

The battery operated transmitter would simply transmit a unique code which could be picked up by the Corvette through one of two antennas – in coupes, the antennas were located in the driver door and the rear deck lid,  – in convertibles, the antennas were located in both the driver and passenger doors.

When a driver approached the Corvette, the PKE would unlock the doors, turn on the interior lights, and deactivate the theft deterrent system.  The PKE system could be turned off completely, and could also be programmed to lock or unlock the driver’s door only, or both the driver and passenger doors.  Coupes that were equipped with the PKE system included an extra button on the transmitter that would unlock the rear hatch.

1993 ZR-1 Corvette.
1993 ZR-1 Corvette.

The LT5 engine (featured in the ZR-1 Corvette) received a minor boost in power.  For 1993, the ZR-1 Corvette’s horsepower was increased from 375hp to 405hp.   Given the overall lack of ZR-1 sales, many questioned the decision to improve upon the performance of the LT5 engine at all, though most critics agreed that doing so would again increase the performance gap between the ZR-1 and the base coupe, putting the ZR-1 back in a class of its own.  This power increase was achieved as the result of a series of changes to the LT5’s cylinder heads and valvetrain.  Additional modifications were made to the LT5 as well including the introduction of four bolt main bearings, platinum tipped sparkplugs, an electrical, linear EGR (Exhaust Gas Recirculation) system for improved emission control and the requirement of using Mobil 1 synthetic oil as the only spec compliant engine lubricant.  These improvements would help propel the ZR-1 to set a new top speed record of 179 miles per hour, which was faster than any other unmolested Corvette ever.

Despite the absence of notable, physical changes to the design of the car, the overall sales numbers of the 1993 Corvette actually increased over previous years.   A total of 21,590 Corvettes were manufactured and sold, marking 1993 the first model year in four years to actually witness an increase in its numbers.  Additionally, the ZR-1 Corvette received the accolades of being the winner of the top speed category of Car & Driver’s “Ten Best” issue (January, 1994).  Despite this, the ZR-1’s numbers continued to head south, with just 448 units being produced that year.

See full 1993 C4 Corvette Image Gallery

1993 Corvette Specifications

1993 Corvette Main Specs

MODEL: 1993 Chevrolet Corvette
BODY STYLE: Two-door Coupe/Hatchback, front engine, rear wheel drive
MANUFACTURING LOCATION: Bowling Green, Kentucky
CONSTRUCTION: Fiberglass body, unibody construction with partial, front frame including both steel and stainless steel components.
VEHICLE NUMBERS (VIN): 1G1YY23PXP5100001 THRU 1G1YY23PXP5121142
1G1YZ23J3P5800001 THRU 1G1YZ23J3P5800448 (ZR-1)
VIN SUFFIX: ZVA: 350 CUBIC INCH, 300 HORSEPOWER, AUTOMATIC TRANSMISSION
ZVB: 350 CUBIC INCH, 300 HORSEPOWER, MANUAL TRANSMISSION
ZVC: 350 CUBIC INCH, 405 HORSEPOWER, MANUAL TRANSMISSION
ENGINE BLOCK NUMBER: 10125327: 350 CUBIC INCH, 300 HORSEPOWER
10199001: 350 CUBIC INCH, 405 HORSEPOWER
HEAD NUMBER: 110205245: 350 CUBIC INCH, 300 HORSEPOWER
10174390: 350 CUBIC INCH, 405 HORSEPOWER (RIGHT HAND)
10174389: 350 CUBIC INCH, 405 HORSEPOWER (LEFT HAND)
Note: For the 1993 model year, the ZR-1 Corvette’s Horsepower rating increased from 375 HP to 405 HP, which was the direct result of modifications to the cylinder head and valvetrain.

1993 Corvette Pricing & Options

CODE: DESCRIPTION: QUANTITY: RETAIL PRICE:
1YY07 Base Corvette Sport Coupe 15,898 $34,595.00
1YY67 Base Corvette Convertible 5,692 $41,195.00
AC1 Power Passenger Seat 8,509 $475.00
AC3 Power Driver Seat 766 $555.00
AQ9 Sport Seats, leather 11,267 $1,100.00
AQ9 Sport Seats, White Leather 622 $1,180.00
AR9 Base Seats, leather 18,067 $305.00
AR9 Base Seats, White Leather 20,626 $305.00
CC2 Auxillary Hardtop (convertible) 976 $1,995.00
C2L Dual Removable Roof Panels (coupe) 4,204 $950.00
24S Removable Roof Panel, blue tint (coupe) 6,203 $650.00
64S Removable Roof Panel, bronze tint (coupe) 4,288 $650.00
C68 Electronic Air Conditioning Control 19,550 $205.00
FX3 Selective Ride and Handling, electronic 5,740 $1,695.00
G92 Performance Axle Ratio 2,630 $50.00
MN6 6-Speed Manual Transmission 5,330 $0.00
NN5 California Emission Requirements 2,401 $100.00
UJ6 Low Tire Pressure Warning Indicator 3,353 $325.00
UU8 Stereo System, Delco-Bose 2,685 $823.00
U1F Stereo System With CD, Delco-Bose 16,794 $1,219.00
V56 Luggage Rack (convertible) 765 $140.00
Z07 Adjustable Suspension Package (coupe) 824 $2,045.00
Z25 40th Anniversary Package 6,749 $1,455.00
ZR1 Special Performance Package  (coupe) 448 $31,683.00

1993 Corvette

1993 Corvette Exterior & Interior Colors

Color Options

CODE EXTERIOR TOTAL SOFT TOP INTERIOR COLOR OPTIONS
10 Arctic White 3,031 Beige, Black, White Black, Light Beige, Light Grey, Red, White
41 Black 2,684 Beige, Black, White Black, Light Beige, Light Grey, Red, White
43 Bright Aqua Metallic 1,305 Beige, Black, White Black, Light Beige, Light Grey, White
45 Polo Green II Metallic 2,189 Beige, Black, White Black, Light Beige, White
53 Competition Yellow 517 Beige, Black, White Black, Light Beige, Light Grey, White
68 Ruby Red 6,749 Ruby Red Ruby Red
70 Torch Red 3,172 Beige, Black, White Black, Light Beige, Light Grey, Red, White
73 Black Rose Metallic 935 Beige, Black, White Black, Light Beige, Light Grey, White
75 Dark Red Metallic 325 Beige, Black, White Black, Light Beige, Light Grey, White
80 Quasar Blue Metallic 683 Beige, Black, White Black, Light Beige, Light Grey, White

Exterior Colors

1993 Corvette Colors1993 Corvette Colors

Interior Colors

1993 Corvette Colors Interior


1993 Corvette Powertrain Specifications

Engine (Coupe/Convertible)

Engine: LT1 5.7 OHV 350 V-8. Multi-Port Fuel Injection
Cylinders: V8
Block Material:
Cast Iron Alloy
Displacement: 5.7 Litre/350 Cubic Inches
Bore & Stroke: 4.00 x 3.48 inches
Valvetrain: OHV, 2 valves per cyl.
Cylinder Head Material: Aluminum
Cylinder Block Deck Height: 9.025 Inches
Compression Ratio: 10.5:1
Horsepower: 300 HP @ 5,000 RPM
Torque: 340 lb-ft @ 3,600 rpm
Fuel Delivery: Multi-Port Fuel Injection
Fuel Capacity: 20.0 Gallons
Oil Capacity: 4.0 Quarts (Without Filter)
Total Dressed Engine Weight (Dry): 585.7lbs
Transmission: 4 Speed Auto Transmission (Standard), 6 Speed Manual Transmission (Optional)
Standard Axle Ratio: 2.59:1 (Automatic), 3.45:1 (Manual)
EST. MPG (City/Hwy): 17/25 MPG
Max Engine RPM 5,500

Engine (ZR-1)

Engine: LT5 5.7 OHV 350 V-8. Multi-Port Fuel Injection (COUPE)
Cylinders: V8
Block Material:
Aluminum*
Displacement: 5.7 Litre/350 Cubic Inches
Bore & Stroke: 3.90 x 3.66 inches
Valvetrain: Double Overhead Cam
Cylinder Head Material: Aluminum
Cylinder Block Deck Height: 9.025 Inches
Compression Ratio: 11.0:1
Horsepower: 405 HP @ 5,800 RPM
Torque: 385 lb-ft @ 5,200 rpm
Fuel Delivery: Multi-Port Fuel Injection
Fuel Capacity: 20.0 Gallons
Oil Capacity: 8.55 Quarts (Crankcase)
Total Dressed Engine Weight (Dry): 596.0 lbs
Transmission: 6 Speed Manual Transmission
Standard Axle Ratio: 2.59:1 (Automatic), 3.33:1 (Manual)
EST. MPG (City/Hwy): 17/25 MPG
Max Engine RPM 7,100

*The engine crankcase, cylinder case, cylinder heads is aluminum with cast-in nodular cast iron bearing inserts.

Transmission

6 SPEED MANUAL GEAR RATIOS  4 SPEED AUTOMATIC GEAR RATIOS
1st GEAR: 2.68:1 1st GEAR: 3.06:1
2nd GEAR: 1.80:1 2nd GEAR: 1.63:1
3rd GEAR: 1.31:1 3rd GEAR: 1.00:1
4th GEAR: 1.00:1 4th GEAR: 0.70:1
5th GEAR: 1.33:1 (0.89 OD) REVERSE: 2.29:1
6th GEAR: 0.50:1
REVERSE: 0.50

1993 Corvette Wheels, Suspension & Brakes

Suspension (Coupe/Convertible)

Front Suspension Independent, unequal length upper and lower A-arms, transverse fiberglass leaf spring, tubular hydraulic shock absorbers, anti-roll bar.
Rear Suspension Independent, upper and lower trailing arms, lateral arms, tie rods, halfshafts, transverse fiberglass leaf springs, tubular hydraulic shock absorbers, anti-roll bar.

Suspension (ZR-1)

Front Suspension Single fiberglass composite monoleaf transverse spring with unequal-length aluminum control arms and stabilizer bar.
Rear Suspension Fully independent five-link system with transverse fiberglass single-leaf springs, aluminum upper/lower trailing links and strut-rod tie-rod assembly.

Wheels & Tires (Coupe/Convertible)

Front Tires Goodyear Eagle ZR, P255/40ZR-17
Rear Tires Goodyear Eagle ZR, P285/40ZR-17
Front Wheels 17 x 8.5 Inches, 5 Bolt Cast Alloy
Front Wheels 17 x 9.5 Inches, 5 Bolt Cast Alloy

Wheels & Tires (ZR-1)

Front Tires Goodyear Eagle ZR, P275/40ZR-17
Rear Tires Goodyear Eagle ZR, P315/35ZR-17 ZR-1
Front Wheels 17 x 9.5 Inches, 5 Bolt Cast Alloy
Front Wheels 17 x 11 Inches, 5 Bolt Cast Alloy

Brakes (Coupe/Convertible)

Type ABS Power-Assist Vented Brakes
Front Brakes 12.0 Inches
Rear Brakes 12.0 Inches

Brakes (Coupe/Convertible)

Type ABS Power-Assist Vented Brakes
Front Brakes 13.0 Inches
Rear Brakes 13.0 Inches

1993 Corvette Exterior Dimensions

Coupe Dimensions

1993 Corvette Dimensions

Exterior Dimensions

Exterior Dimensions
Model LT1 Coupe LT1 Convertible ZR-1 Coupe
Wheelbase 96.2 Inches 96.2 Inches 96.2 Inches
Overall Length 178.5 Inches 178.5 Inches 178.5 Inches
Total Body Width 70.7 Inches 70.7 Inches 73.1 Inches
Overall Height 46.3 Inches 47.3 Inches 46.3 Inches
Front Track Width 57.7 Inches 57.7 Inches 56.7 Inches
Rear Track Width 59.1 Inches 59.1 Inches 60.6 Inches

Interior Dimensions

Interior Dimensions
Model LT1 Coupe LT1 Convertible ZR-1 Coupe
Headroom 36.4 Inches 36.5 Inches 36.4 Inches
Shoulder Room 54.1 Inches 54.1 Inches 54.0 Inches
Hip Room 49.3 Inches 49.3 Inches 49.3 Inches
Leg Room 42.6 Inches 42.6 Inches 42.6 Inches

Capacities

Capacities
Model LT1 Coupe LT1 Convertible ZR-1 Coupe
Passenger Capacity 2 – Driver & Passenger 2 – Driver & Passenger 2 – Driver & Passenger
Curb Weight – Automatic (LBS) 3,317 3,358 N/A
Curb Weight – Manual (LBS) 3,317 3,358 3,503
Cargo Volume (CU.FT) 17.9 Cubic Feet 17.9 Cubic Feet 12.6 Cubic Feet
Fuel Capacity (GALLONS/LITERS) 20.0/76.0 20.0/76.0 20.0/76.0
Engine Oil Capacity (QTS./LITERS) 4.5 4.5 9.6
Coolant Capacity (QTS./LITERS) 14.6 14.6 16.7
Coefficient of Drag N/A N/A N/A
Weight Dist. Front/Rear (%) 51.5/48.5 N/A N/A

1993 Corvette

1993 Corvette Performance Results

Model LT1 Coupe LT1 Convertible ZR-1 Coupe
0-30 MPH:  1.9 Seconds  1.9 Seconds  2.1 Seconds
0-60 MPH:  5.6 Seconds  5.6 Seconds  4.9 Seconds
0-100 MPH:  12.6 Seconds  12.6 Seconds  10.3 Seconds
QUARTER MILE:  14.0 Sec./101.7 MPH  14.0 Sec./101.7 MPH 13.1 Sec./109.6 MPH
TOP SPEED (MPH):  N/A  N/A  179

1993 Corvette

1993 Corvette Vehicle Identification Numbers (VIN)

VIN Range G1YY23PXP5100001 – 1G1YY23PXP5121142 (Corvette Coupe & Convertible)
1G1YZ23J3P5800001 – 1G1YZ23J3P5800448 (ZR-1 Corvette)
1 (First Digit) 1 – United States
G (Second Digit) Manufacturer.  G – General Motors
1 (Third Digit) Manufacturer Division. 1 – Chevrolet
YY/YZ(ZR-1) Make of Car. YY – Corvette  Coupe/Convertible.  YZ – ZR-1 Corvette (Coupe Only)
2/3 (Sixth Digit) 2 – Two Door Hatchback Coupe, 3 – Two Door Convertible
3 (Seventh Digit) Type of Restraint System.  3 – Passive Restraint System.
P/J(ZR-1) (Eighth Digit) Type of Engine. P – LT1: 5.7 Liter, 350CI Engine with Tuned-Port Injection. J – LT5: 5.7 Liter, 350CI, 32 Valve Engine with Tuned-Port Injection
X/3 (ZR-1) (Ninth Digit) Check Digit.
P (Tenth Digit) The Model Year. J – 1993
5 (Eleventh Digit) Location of the Assembly Plant. 5 – Bowling Green, Kentucky
1XXXXX/8XXXXX(ZR-1) (Twelfth thru Seventeenth Digits) Production Sequence Numbers.

The last six digits begin at 100001 and run thru 121142, accounting for each of the 21,142 Corvette Coupes/Convertibles built in 1993. Additionally, the last six digits of the ZR-1 VIN begin at 800001 and run thru 800448, accounting for each of the 448 ZR-1 Corvette Coupes built in 1993. Each Vehicle Identification Number (VIN) is unique to an individual car.

For all 1993 Corvettes, the Vehicle Identification Number was stamped on a plate on the inner vertical surface of the left windshield pillar visible through the windshield.

Check Digit is used to calculate the characters in the serial number and gives it a single digit code that can be used to verify the serial number is legitimate. (Note: The Check digit number varies depending on each specific VIN number.)

1993 Corvette Factory Options

CODE: DESCRIPTION: QUANTITY: RETAIL PRICE:
1YY07 Base Corvette Sport Coupe 15,898 $34,595.00
1YY67 Base Corvette Convertible 5,692 $41,195.00
AC1 Power Passenger Seat 8,509 $475.00
AC3 Power Driver Seat 766 $555.00
AQ9 Sport Seats, leather 11,267 $1,100.00
AQ9 Sport Seats, White Leather 622 $1,180.00
AR9 Base Seats, leather 18,067 $305.00
AR9 Base Seats, White Leather 20,626 $305.00
CC2 Auxillary Hardtop (convertible) 976 $1,995.00
C2L Dual Removable Roof Panels (coupe) 4,204 $950.00
24S Removable Roof Panel, blue tint (coupe) 6,203 $650.00
64S Removable Roof Panel, bronze tint (coupe) 4,288 $650.00
C68 Electronic Air Conditioning Control 19,550 $205.00
FX3 Selective Ride and Handling, electronic 5,740 $1,695.00
G92 Performance Axle Ratio 2,630 $50.00
MN6 6-Speed Manual Transmission 5,330 $0.00
NN5 California Emission Requirements 2,401 $100.00
UJ6 Low Tire Pressure Warning Indicator 3,353 $325.00
UU8 Stereo System, Delco-Bose 2,685 $823.00
U1F Stereo System With CD, Delco-Bose 16,794 $1,219.00
V56 Luggage Rack (convertible) 765 $140.00
Z07 Adjustable Suspension Package (coupe) 824 $2,045.00
Z25 40th Anniversary Package 6,749 $1,455.00
ZR1 Special Performance Package  (coupe) 448 $31,683.00

Base Corvette Sport Coupe (1YY07)

  • The base price of the 1993 Chevrolet Corvette Coupe without any optional equipment.
  • A 350 cubic inch, 300 horsepower engine, 4-speed automatic transmission, removable body-color roof panel, and black cloth seats were included in the base price.
  • The base engine for the 1993 Corvette was the LT1, a new generation small block. In 1993 Corvettes, the engine developed 300 horsepower (net) at 5,000 rpms. The engine torque was rated at 340 lbs. -ft at 3,600 rpm. Three changes were made to the engine to make it quieter. First, the heat shield design changed from a single-piece stamping to a two-piece sandwich type that was self damping. Second, new thermostat polyester valve covers with “isolated” mounts replaced 1984-1992 magnesium covers. These covers were isolated from the heads by a gasket in the normal location, but also by gaskets under the heads of mounting hardware. Third, the LT1 camshaft exhaust lobe profile was modified to reduce the exhaust valve closing velocity. Also, a shortening of the inlet duration permitted more duration of the exhaust so there was no increase in overlap area. Emissions and idle quality were not adversely affected.
  • The 1993 Corvette was the first automobile sold by General Motors to feature a passive keyless entry (PKE) system.
  • The front wheels on the 1993 Corvette were reduced from 9.5 x 17 to 8.5 x 17 and the front tire sizes from P275/40ZR17 to P255/45ZR17. Rear tire size was increased from P275/40ZR17 to P285/40ZR17.
  • Although same in design as the previous year, the 1993 Corvette’s wheels had a different surface appearance due to a change in machine finishing.

Base Corvette Convertible (1YY67)

  • The base price of the 1993 Chevrolet Corvette Convertible without optional equipment.
  • A 350 cubic inch, 300 horsepower engine, 4-speed automatic transmission, removable body-color roof panel, and black cloth seats were included in the base price.
  • The base engine for the 1993 Corvette was the LT1, a new generation small block. In 1993 Corvettes, the engine developed 300 horsepower (net) at 5,000 rpms. The engine torque was rated at 340 lbs. -ft at 3,600 rpm. Three changes were made to the engine to make it quieter. First, the heat shield design changed from a single-piece stamping to a two-piece sandwich type that was self damping. Second, new thermostat polyester valve covers with “isolated” mounts replaced 1984-1992 magnesium covers. These covers were isolated from the heads by a gasket in the normal location, but also by gaskets under the heads of mounting hardware. Third, the LT1 camshaft exhaust lobe profile was modified to reduce the exhaust valve closing velocity. Also, a shortening of the inlet duration permitted more duration of the exhaust so there was no increase in overlap area. Emissions and idle quality were not adversely affected.
  • The 1993 Corvette was the first automobile sold by General Motors to feature a passive keyless entry (PKE) system.
  • The front wheels on the 1993 Corvette were reduced from 9.5 x 17 to 8.5 x 17 and the front tire sizes from P275/40ZR17 to P255/45ZR17. Rear tire size was increased from P275/40ZR17 to P285/40ZR17.
  • Although same in design as the previous year, the 1993 Corvette’s wheels had a different surface appearance due to a change in machine finishing.

Power Passenger Seat (AC1)

  • Optional, six-way, adjustable passenger seat.
  • This option was included as part of the ZR1 package.

Power Driver Seat (AC3)

  • Optional, six-way, adjustable driver seat.
  • This option was included as part of the ZR1 package

Base Seats, Leather (AR9)

  • Leather cover option for the standard, base driver and passenger seats.
  • For a small, additional cost, these same seats could be purchased in a white leather finish.

Sports Seat, Leather (AQ9)

  • Special sport seats that featured inflatable lumbar support and power-adjusted side bolsters
  • This option was included as part of the ZR1 package.
  • For a small, additional cost, these same seats could be purchased in a white leather finish

Auxiliary Hardtop (convertible) (CC2)

  • An optional, removable hardtop.

Dual Removable Roof Panels (coupe) (C2L)

  • Included both a tinted, transparent glass top and a painted top.

Removable Roof Panels, blue tint (coupe) (24S)

  • Blue tinted removable glass top.

Removable Roof Panels, bronze tint (coupe) (64S)

  • Bronze tinted removable glass top.

Electronic Air Conditioning Control (C68)

  • Air conditioning system electronic control unit.

Selective Ride & Handling, Electronic (FX3)

  • Electronically controlled suspension with manual ride selection.
  • FX3 provided three variations of suspension control regulated by a console switch.
  • This option was included as part of the ZR1 package.

Performance Axle Ratio (G92)

  • Optional performance axle ratio of 3.07:1 or 3.33:1.
  • Was only offered when the Corvette was ordered with an automatic transmission.
  • The actual “Performance Axle Ratio” varied from year to year. The G92 Option was available when ordering either the Corvette or the Camaro throughout the 1980’s and early ’90’s.

6-Speed Manual Transmission (MN6)

  • An optional, no-cost, 6-speed manual transmission.
  • The six-speed manual transmission was designed jointly by ZF (Zahnradfabrik Friedrichshafen) and Chevrolet and was initially built by ZF in Germany.
  • A computer-aided gear selection feature bypassed second and third gears (and locked out fifth and sixth) for improved fuel economy when a series of low performance criteria were met.

California Emission Requirements (NN5)

  • Revised emission/exhaust components to meet California Emission standards

Low Tire Pressure Warning Indicator (UJ6)

  • Low tire/air pressure monitoring and warning system.
  • Sensors strapped to each side of the inside of each wheel sent a radio signal to a instrument-panel receiver if pressure in any tire dropped below a preset limit.
  • This option was included as part of the ZR1 package.

Stereo System, Delco-Bose (UU8)

  • 200 watt Delco Bose AM/FM stereo radio with cassette.
  • A power delay feature was added to all models which permitted the stereo system and power windows to operate after the ignition was switched to “off” or “lock”. Power was cut after the driver’s door was opened or after 15 minutes, whichever came first.
  • The AM band for radios was expanded to receive more frequencies.

Stereo System with CD, Delco-Bose (U1F)

  • 200 watt Delco Bose AM/FM stereo radio with compact disc player.
  • This option was included as part of the ZR1 package.
  • To discourage theft, the CD player required an electronic security code input after battery disconnect.
  • A power delay feature was added to all models which permitted the stereo system and power windows to operate after the ignition was switched to “off” or “lock”. Power was cut after the driver’s door was opened or after 15 minutes, whichever came first.

Luggage Rack (convertible) (V56)

  • Optional luggage rack that was mounted to the rear decklid of the Corvette convertible.

Adjustable Suspension Package (coupe) (Z07)

  • Heavy Duty Suspension with Ride Control Selection.
  • This option included RPO FX3, heavy-duty suspension and heavy-duty brakes. Available with both automatic and manual transmissions.
  • Intended for aggressive driving or competition, the Z07 option was limited to coupes.

40th Anniversary Package (Z25)

  • A special edition package offered for the Corvette’s 40th Anniversary.
  • This package included Ruby Red metallic exterior paint and Ruby Red leather sports seats.
  • Included in the package was a power driver seat.
  • Special wheel center trim and emblems were also included.
  • It was offered on all packages – coupes, convertibles, and even on the ZR-1.

Special Performance Package (coupe) (ZR1)

  • Extensive performance upgrades to the base model Corvette.
  • The ZR1 option included unique bodywork (doors, rear quarters, rocker panels, rear fascia, and rear upper panel.)
  • ZR1 optioned Corvettes were fitted with special Goodyear Z-rated P315/35ZR17 tires that were mated to 11-inch wide rear rims.
  • The ZR1 option included a number of other RPO’s (normally listed separately) including: Power Passenger Seats (AC1), Power Driver Seats (AC3), Sports Seats, Leather (AQ9), Electronic Air Conditioning Control (C68), Selective Ride and Handling, electronic (FX3), Stereo System with CD, Delco Bose (U1F), and Low
  • Tire Pressure Warning Indicators (UJ6) and a specially laminated “solar” windshield were included.
  • Additionally, the six-speed manual transmission (MN6) was required.
  • Horsepower increased for the optional ZR-1’s LT-5 engine from 375 horsepower to 405 horsepower. This increase was the result of modifications to the cylinder heads and valve train. Other changes included 4-bolt main bearings, a Mobil-1 synthetic oil requirement, platinum-tipped spark plugs, and an electrical, linear exhaust gas recirculation system for improved emission control.
  • Despite its similar appearance to the 1993 LT1 Corvette, the ZR-1 still received unique doors and rear body panels to accept the 11-inch wide rear wheels. The high mount center stop lamp for the 1993 ZR-1s continued to be roof mounted.
  • The LT5 Engines were assembled by Mercury Marine in Stillwater, Oklahoma, and were then shipped to the Corvette plant in Bowling Green Kentucky for ZR1 Corvette assembly.
  • Chevrolet service departments returned LT5 engines to Mercury Marine for certain repairs. Customers were given the choice of a replacement engine or return of their original engine, if repairable.
  • The ZR1 option was only available in the coupe bodystyle.

Notes:

  • All leather seats in 1993 Corvettes had “40th” Anniversary embroidery in the headrest. The base black cloth seats did not include any embroidery.
  • 1993 was the last model year in which a Corvette could be ordered with the no-cost base model black cloth seats. Of all the Corvettes built in 1993, only 426 featured the cloth seats.

1993 Corvette Recalls

Recall 06e043000

Make: Chevrolet
Model: Corvette
Model Year: 1993
Manufacturer: Honeywell International, Inc.
Mfr’s Report Date: May 19, 2006
Nhtsa Campaign Id Number: 06e043000
Nhtsa Action Number: N/a
Component: Fuel System, Gasoline
Potential Number Of Units Affected: 88303

Summary

Certain Replacement Fuel Filters, Fram Brand Name P/n G3727, With Date Codes X52911 Through X60801 Sequentially Or X600141 And A Mexico Country Or Origin Marking On The Fuel Filter Housing Manufactured From October 18, 2005, Through March 21, 2006, Sold For Use On The Vehicles Listed Above And On Certain School Buses. (To See The School Bus Engine Sizes, Click On “Document Search” And Then “Bus Applications”). The Connector On The Fuel Filter Was Not Manufactured To Honeywell’s Specification. As A Result, The O-ring May Not Seat Correctly On The Fuel Line.

Consequence

This Condition May Cause An Inadequate Seal At The Connection, Potentially Leading To A Fuel Leak. In The Presence Of An Ignition Source, A Fire Could Occur.

Remedy

Honeywell Will Notify Owners And Replace The Fuel Filters Free Of Charge. The Recall Began On October 18, 2006. Owners May Contact Fram Customer Service At 1-800-890-2075 (Option 1).

Notes

This Recall Only Pertains To Aftermarket Fram Fuel Filters And Has No Relation To Any Original Equipment Installed On The Vehicles Listed. Customers May Contact The National Highway Traffic Safety Administration’s Vehicle Safety Hotline At 1-888-327-4236 (Tty: 1-800-424-9153); Or Go To Http://www.safercar.gov.

Recall 92V160000

Make: Chevrolet
Model: Corvette
Model Year: 1993
Manufacturer: General Motors Corp.
Mfr’s Report Date: Oct 23, 1992
Nhtsa Campaign Id Number: 92v160000
Nhtsa Action Number: N/a
Component: Steering:hydraulic Power Assist:hose, Piping, And Connections
Potential Number Of Units Affected: 5152

Summary

The Power Steering Gear Inlet Hose On These Vehicles Can Fracture, Causing Power Steering Fluid To Spray From Hose Into The Engine Compartment.

Consequence

The Power Steering Fluid Is Flammable And Could Cause an Underhood Fire If Exposed To A Source Of Ignition.

Remedy

Replace The Power Steering Gear Inlet Hose With An Improved Design.

Notes

System: Steering.vehicle Description: Passenger Cars With Lt1 Engines.


1993 Corvette Service Bulletins

Service Bulletin 020730024a

Make: Chevrolet
Model: Corvette
Model Year: 1992
Manufacturer: General Motors Corp.
Service Bulletin Number: 020730024a
Date Of Bulletin: Aug 01, 2005
Nhtsa Item Number: 634999

Component

Power Train: Automatic Transmission: Lever And Linkage: Column Shift

Summary

Diagnosis Of Cracked Or Broken Transmission Case. *tt 2006 And Prior Cars And Light Duty Trucks. *tt

Service Bulletin 01697

Make: Chevrolet
Model: Corvette
Model Year: 1992
Manufacturer: General Motors Corp.
Service Bulletin Number: 01697
Date Of Bulletin: Jan 01, 2004
Nhtsa Item Number: 10006297
Component: Equipment:electrical

Summary

No Serial Data Communications Using The Tech 1 With A 1986 Or Newer Camaro, Firebird Or Corvette With A 5.0 Or 5.7 Litre Engine. Sit Bulletin 1450640. *tt

Service Bulletin 010729004

Make: Chevrolet
Model: Corvette
Model Year: 1992
Manufacturer: General Motors Corp.
Service Bulletin Number: 010729004
Date Of Bulletin: Jun 01, 2001
Nhtsa Item Number: 622763

Component

Power Train:manual Transmission

Summary

Information Regarding Corvette Zf Six Speed Manual Transmission.

Service Bulletin 9313110

Make: Chevrolet
Model: Corvette
Model Year: 1992
Manufacturer: General Motors Corp
Service Bulletin Number: 9313110
Date Of Bulletin: Mar 01, 1993
Nhtsa Item Number: 39547
Component: Visibility:glass, Side/rear

Summary

Rear Lift Window Hard To Open/hinge Loose To Glass. *tw


1993 Corvette Common Issues

The following list of common issues is intended for individual reference only, and may not reflect the specific issues of every 1993 Corvette. This information comes from a variety of sources including the NHTSA Defects Reports pages. While the intent of this page is to identify the common issues pertaining to the 1993 Corvette, it is not an all-inclusive list and should be used for reference only.

Mechanical Issues

Engine

The Opti-Spark Ignition System has been known to fail on late model C4 Corvettes (those equipped with PFI V8 engines). Failure of the Opti-Spark Ignition System may prevent the vehicle from starting.

The engine may accelerate at anytime without warning, regardless of whether the car is gear or in reverse.

The air control valve has been identified as a possible cause of this issue.

The engine is known to cutoff without warning during normal operation. Specific cause is unknown.
The LT1 engine is prone to engine oil leaks, most especially around the front and rear of the intake manifold. The manifold was sealed at the ends with RTV rather than gasket material and tended to leak even straight from the factory. Other common areas to check for oil leaks on the engine include: the timing chain cover, the valve covers, the waterpump drive seal, the oil pan, and the front and rear main bearing seals.

The LT1 engine often exhibits a rough idle at start-up, especially after the car has been sitting for an extended period of time. The most probable cause of the idling issue is fouled injectors. In many instances, adding a fuel stabilizer and/or fuel injection cleaner to the fuel tank helps resolve this issue.

Transmission

A transmission leak may occur from the pump body on 4L60-E transmissions due to the pump bushing walking out of the valve body.

It should be noted the ZF6 transmission is somewhat noisy (particularly in neutral with the clutch out)
The transmission is controlled by an electronic control unit. In some instances, this unit is known to fail, causing erratic transmission shifting problems resulting in drivability issues.

Radiator

It is quite common for road debris and trash to get sucked up between the radiator and the A/C condenser, thereby blocking air flow and causing the engine to overheat. This area should be inspected and cleaned out at regular intervals.

Check the underside of the radiator for signs of leaking coolant, the side tanks on the factory radiator are constructed of plastic and may be cracked and leaking on a higher mileage car.

Braking System

The anti-lock braking system fails unexpectedly during normal driving conditions resulting in loss of vehicle control.

Power Steering

High-pressure power steering hose O-ring at the power steering pump prone to failure, causing power steering fluid to blow by the seal and onto the catalytic converters, resulting in a fire hazard.

Suspension

A periodic problem on this vehicle is failure of the Shock Absorber Actuator. Failure of the Shock Absorber Actuator applies to vehicles equipped with Selective Ride Control only.

Exterior Issues

Body/Frame Rigidity

Several instances have been reported of body vibration when the removable top is off the vehicle. The vibration becomes excessive during operation at highway speeds. These same vibrations can cause loss of vehicle control/vehicle stability.

Interior Issues

Passive Restraint System

Driver’s side airbag is known to deploy without cause.

During activation in an impact situation, the airbags either failed to deploy completely, or they partially deployed without fully inflating.

Dashboard

The digital dashboard has a tendency to stop operating on occasion, although it may operate normally on the next start-up. Possible causes for the intermittent issue include bad wiring and aging/damaged dash-illuminating light bulbs.

Seat Belts & Safety Restraints

In some instances, the shoulder harness of the driver’s seat belt has failed to restrain driver during crash condition, causing driver to sustain injury against steering wheel/dashboard.

1993 Corvette

1993 Corvette Maintenance Schedule

Maintenance Schedule

Schedule 1

Follow Schedule 1 if your car is mainly operated under one or more of the following conditions:.

  • When most trips are less than 4 miles (6 kilometers)
  • When most trips are less than 10 miles (16 kilometers) when outside temperatures are below freezing.
  • When the engine is at low speed most of the time (as in stop-and-go traffic).
  • When operating in dusty areas.
1993 Corvette Maintenance Schedule
1993 Corvette Maintenance Schedule

Schedule 2

Follow Schedule 2 only if none of the driving conditions specified in Schedule 1 apply.

1993 Corvette Maintenance Schedule
1993 Corvette Maintenance Schedule

Maintenance Information

The 1993 Corvette has an Engine Oil Life Monitor. This monitor will show drivers when to change their oil – usually between 3,000 miles (5,000 km) and 7,500 miles (12,500 km) since the last oil change.  Under severe conditions the indicator may come on before 3,000 miles (5,000 km).  Never drive your vehicle more than 7,500 miles (12,500 km) or 12 months whichever occurs first, without an oil change.

The system won’t detect dust in the oil.  If you drive in a dusty area be sure to change your oil every 3,000 miles (5,000 km) or sooner if the CHANGE OIL light comes on.  Remember to reset the Oil Life Monitor when the oil has been changed.  See “GM Oil Life System” (at the bottom of this page) for more information on resetting the system.

Explanation of Scheduled Maintenance Services:

Engine Oil and Filter Change: Use only API Service SG Energy Conserving II oils of the proper viscosity.*  The engine requires a special oil meeting GM Standard GM4718M.  Oils meeting this Standard may be identified as synthetic, and should also be identified as API Service SG.  However, not all Synthetic API Service SG oils will meet this GM Standard.  You should look for and use only an oil that meets GM Standard GM4718M.

Chassis Lubrication: Lubricate the transmission shift linkage, parking brake cable guides, underbody contact points and linkage.   Lubricate the front suspension.

Engine Accessory Drive Belt Inspection: Inspect the belts for cracks, fraying, wear and proper tension.  Replace as needed.

Cooling System Service: Drain, flush and refill the system with new or approved recycled coolant conforming to GM Specification 1825M.  Keep coolant at the proper mixture as specified.  This provides proper freeze protection, corrosion inhibitor level and engine operating temperature.

Inspect hoses and replace if they are cracked, swollen or deteriorated.  Tighten screw-type hose clamps.  Clean the outside of the radiator and air conditioning condenser.  Wash the pressure cap and neck.

To help ensure proper operation, we recommend a pressure test of both the cooling system and the pressure cap.

Transmission Service: For manual transmissions, the fluid doesn’t require changing.

For automatic transmissions, change both the fluid and filter every 15,000 miles (25,000 kilometers) if the vehicle is mainly driven under one or more of these conditions: heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher, in hilly or mountainous terrain. Uses such as found in taxi, police or delivery service.  If you do not use your vehicle under any of these conditions, change the fluid and filter at 100,000 miles (166,000 kilometers).

Spark Plug Replacement: Replace spark plugs with the proper type.

Spark Plug Wire Inspection: Inspect for burns, cracks or other damage.  Check the boot fit at the coils and at the spark plugs.  Replace the wires as needed.

Air Cleaner Filter Replacement: Replace every 30,000 miles (50,000 kilometers) or more often under dusty conditions.  Ask your local dealership for proper intervals based on individual driving conditions.

Fuel Tank, Cap and Line Inspection: Inspect the fuel tank, cap, and lines (including fuel rails and injection assembly) for damage and leaks.  Inspect fuel cap gasket for an even filler neck imprint or any damage.  Replace parts as needed.  Periodic replacement of the fuel filter is not required.

Owner Inspection & Service Items

At Each Fuel Fill

It is important for you or a service station attendant to perform these underhood checks at each fuel fill.

Engine Oil Level Check: Check the engine oil level and add the proper oil if necessary. If you have a ZR-1 you should check your engine oil when the engine is cold.

Engine Coolant Level Check: Check the engine coolant level and add the proper coolant mixture if necessary.

Windshield Washer Fluid Level Check: Check the windshield washer fluid level in the windshield washer tank and add the proper fluid if necessary.

At Least Once a Month

Tire Inflation Check: Make sure tires are inflated to the correct pressures specified on the Tire-Loading Information Label located on the rear edge of the driver door.

At Least Once A Year

Key Lock Cylinder Service: Lubricate the key lock cylinders.

Body Lubrication Service: Lubricate all body door hinges. Also lubricate all hinges and latches, including those for the hood, rear compartment, console door and any folding seat hardware.  More frequent lubrication may be required when exposed to a corrosive environment.

Starter Switch Check: CAUTION: When you are doing this check, the vehicle could move suddenly.  If it does, you or others could be injured. Before you start, be sure you have enough room around the vehicle.

Firmly apply the parking brake and the regular brake.  (NOTE: Do not use the accelerator pedal, and be ready to turn off the engine immediately  if it starts.)

On automatic transmission vehicles, try to start the engine in each gear. The starter should work only in PARK (P) or NEUTRAL (N). If the starter works in any other position, your vehicle needs service.

On manual transmission vehicles, put the shift lever in NEUTRAL (N), push the clutch down halfway and try to start the engine. The starter should work only when the clutch is pushed down all the way to the floor.  If the starter works when the clutch isn’t pushed all the way down, your vehicle needs service.

Steering Column Lock Check: While parked, and with the parking brake set, try to turn the ignition key to OFF in each shift lever position. With an automatic transmission, the key should turn to LOCK only when the shift lever is in PARK (P). With a manual transmission, the key should turn to LOCK only when the shift lever is in REVERSE (R).

On all vehicles, the key should come out only in LOCK.

Parking Brake and Automatic Transmission PARK (P) Mechanism Check:

CAUTION: When you are doing this check, your vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of your vehicle in case it begins to roll. Be ready to apply the regular brake at once should the vehicle begin to move.

Park on a fairly steep hill, with the vehicle facing downhill.  Keeping your foot on the regular brake, set the parking brake.

To check the parking brake’s holding ability: With the engine running and transmission in NEUTRAL (N), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only.

To check the PARK (P) mechanism’s holding ability: With the engine running, shift to PARK (P). Then release the parking brake followed by the regular brake.

Underbody Flushing Service: At least every spring, use plain water to flush any corrosive materials from the underbody. Take care to clean thoroughly any areas where mud and other debris can collect.

Dealership Inspection & Service Items

At Least Twice A Year

Steering and Suspension Inspection: Inspect the front and rear suspension and steering system for damaged, loose or missing parts, signs of wear or lack of lubrication. Inspect the power steering lines and hoses for proper hook-up, binding, leaks, cracks, chafing, etc.

Tire and Wheel Inspection: Inspect the tires for uneven wear or damage. If there is irregular or premature wear, check the wheel alignment.  Inspect for damaged wheels.

Exhaust System Inspection: Inspect the complete exhaust system. Inspect the body near the exhaust system. Look for broken, damaged, missing or out-of-position parts as well as open seams, holes, loose connections or other conditions which could cause a heat build-up in the floor pan or could let exhaust fumes into the vehicle.

Rear Axle Service: Check the gear lubricant level in the rear axle and add if needed.  A fluid loss may indicate a problem. Check the axle and repair it if needed.

Brake System Inspection:Inspect the complete system. Inspect brake lines and hoses for proper hook-up, binding, leaks, cracks, chafing, etc. Inspect disc brake pads for wear and rotors for surface condition. Inspect other brake parts, including calipers, parking brake, etc.  You may need to have your brakes inspected more often if your driving habits or conditions result in frequent braking.

NOTE: A low brake fluid level can indicate worn disc brake pads which may need to be serviced.  Also if the brake light stays on or comes on, something may be wrong with the brake system.  If your anti-lock brake system warning light stays on, come on or flashes, something may be wrong with the anti-lock braking system.

GM Oil Life System

Your vehicle has a computer that lets you know when to change your engine oil. This is not based on mileage, but on engine revolutions and engine operating temperature. When the computer has calculated that the oil needs changing, the GM Oil Life System will indicate that a change is necessary. The mileage between oil changes will vary depending on how you drive your vehicle — usually between 3,000 miles (5 000 km) and 10,000 miles (16 000 km) since your last oil and filter change. Under severe conditions, the system may come on before 3,000 miles (5 000 km). Never drive your vehicle more than 10,000 miles (16 000 km) or 12 months (whichever occurs first) without an oil change. Use engine oil meeting the GM Standard GM4718M.

The system won’t detect dust in the oil. So, if you drive in a dusty area, be sure to change your oil and filter every 3,000 miles (5 000 km) or sooner if the CHANGE OIL SOON message appears. Remember to reset the system whenever the oil is changed.

How to Reset the Change Oil Soon Message
To reset the CHANGE OIL SOON message after an oil change, do the following:
1. Turn the ignition to ON and with the engine off.
2. Press the TRIP button so the OIL LIFE percentage is displayed.
3. Press RESET and hold for two seconds. OIL LIFE REMAIN 100% will appear.


1993 Corvette DIY Service Guide

Battery & Charging

Inspection & Replacement of Battery, Factory Battery Specifications, Replacement of Alternator/Generator

Belts & Hoses

How to Replace Drive Belt(s), Inspection & Replacement of Upper/Lower Radiator Hoses

Braking

Inspection & Replacement of Brake Pads, Inspection & Replacement of Front/Rear Brake Rotors, How to Replace Brake Calipers, How to Bleed Brakes, Inspection & Replacement of Master Cylinder

Heating & Cooling

Inspection & Replacement of Radiator, How to Replace the Heater Core, Inspection & Replacement of Upper/Lower Radiator Hoses, How to Flush the Cooling System, How to Replace the Water Pump, How to Replace a Thermostat.

Emissions

Location of, Inspection & Replacement of Oxygen Sensors (Upstream/Downstream), How to Replace the EGR Valve, How to Replace the Smog Pump.

Filters/PCV Valves

Location & Replacement of the Following Filters: Oil Filter, Fuel Filter, Transmission Filter, PCV Valve.

Ignition & Tune Up

How to Replace the Ignition Coil, How to Replace the Ignition Switch, Inspection & Replacement of Sparkplug Wires, Inspection & Replacement of Cap & Rotor, How to Replace Sparkplugs, Engine Firing Order, Engine Timing.

Relays & Sensors

Location & Replacement of: Mass Air Flow Sensor, Oil Pressure Sensor, Engine Temperature Sensor, Ambient Air Temperature Sensor, Fuel Pressure Sensor, Oxygen Sensors (Upstream/Downstream).

Suspension & Steering

Inspection & Replacement of Upper/Lower Ball Joints, How to Replace Control Arm Bushings, How to Replace the Power Steering Pump, Inspection & Replacement of Front Shocks/Struts, Inspection & Replacement of Rear Shocks/Struts, How to Replace Inner & Outer Tie Rod Ends.

Starter/External Engine

How to Replace the Starter Motor, How to Replace the Starter Solenoid, How to Replace the Drive Belt Tensioner, How to Replace the Idler Pulley, Location of, Inspection & Replacement of Engine (Motor) Mounts, How to Replace the Oil Pan Gasket, How to Replace the Oil Pump.

Transmission & Clutches

How to Change the Transmission Filter (Automatic Transmission), How to Replace a Clutch (Manual Transmission).

 

Source Material:

  1. The Pocket Book of the Corvette: The Definitive Guide to the All American Sports Car – Copyright 2003, Barnes & Noble
  2. CORVETTE: Sports Car Superstar – Copyright 2005, PIL – Publications International, Ltd.
  3. Corvette Black Book – Copyright 2009, Michael Bruce Associates, Inc.
  4. The Complete Book of Corvette, Every Model Since 1953 – Copyright 2005, Mike Mueller – MBI Publishing

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