The following list of common issues is intended for individual reference only, and may not reflect the specific issues of every 1991 Corvette. While the intent of this page is to identify the common issues pertaining to the 1991 Corvette, it is not an all-inclusive list and should be used for reference only.
1991 Corvette Recalls, Technical Service Bulletins, & Maintenance Schedule
The information contained on this page is for reference only. The time and mileage intervals for each of the maintenance items included on this page were established by General Motors with the introduction of the 1991 Chevy Corvette. Please note that the original service intervals may not reflect the standard service intervals used in current automobile engines.
The following list of common issues is intended for individual reference only, and may not reflect the specific issues of every 1991 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 1991 Corvette, it is not an all-inclusive list and should be used for reference only.
The throttle linkage is known to stick, causing the throttle body to remain open. This creates a potentially serious issue in that it can cause the car to accelerate uncontrollably at ignition, resulting in damage to vehicle and possible driver/passenger injury.
The intake manifold gaskets are prone to developing leaks.
The 1991 L98 Engine is known to have overheating issues.
Intermittent stall issues have been frequently reported.
The air conditioning compressor on the 1991 Corvette has a high tendency to fail prematurely.
The alternator on the 1991 Corvette is prone to premature failure, resulting in frequent replacement of the unit. Several instances have been reported of the alternator failing even after recent replacement, causing the vehicle to fail during normal operation.
Anti-lock brake system warning light illuminates on dashboard, indicating possible malfunction of the ABS system. The ABS system on the 1991 Corvette has been well documented as having intermittent operation problems. In some instances, the brake pedal faded after the ABS light came on, resulting in inoperable brakes during stopping condition.
The brakes on the 1991 Corvette may lock up during normal driving conditions.
Electronic Control Unit (ECU)
The electronic control unit (ECU) is prone to failure, causing vehicle to stall during operation. Failure of the ECU can also prevent the Corvette from starting.
Windshield Wiper System
The windshield wipers periodically skip across the windshield, which causes them to get out of sync with each other. Additionally, the wiper assembly is prone to lock up during normal usage and requires replacement of entire assembly.
Passive Restraint System
During activation in an impact situation, the airbags either failed to deploy completely, or they partially deployed without fully inflating.
Driver & Passenger Seats
Drivers seat is known to become loose on track. Seat tracks not securely mounted to floorpan/frame assembly, creating possible hazardous driving conditions. Always inspect the driver and passenger seats before operating vehicle.
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. Seat belts were recalled by dealership.
Other symptoms of seat belt failure include: the driver’s side seat belt locks up completely, making it completely inoperable and unusable. The lap belt also locks up during use, causing the belt to successively tighten when vehicle experiences even normal bumps/imperfections on the road.