Free VIN Decoder
Instantly decode any Vehicle Identification Number (VIN) for free. Get vehicle specs, history, and recall information in seconds.
1GKGV26K3MF502898
Vehicle Summary
The 1991 GMC Suburban is a robust 4WD SUV powered by a 5.7L V8 engine with throttle body fuel injection. Manufactured by General Motors in Flint, Michigan, this 3/4 ton vehicle offers a durable hydraulic brake system. It’s designed for versatility and heavy-duty performance, ideal for both passenger and multipurpose use.
Complete Specifications
Common Issues for This Vehicle
Brake fluid leaks
Hydraulic brake systems can suffer from leaks in the brake lines, master cylinder, or wheel cylinders, causing a loss of braking power.
Brake fade
Prolonged use can cause the brakes to overheat, reducing their effectiveness temporarily.
Worn brake pads or shoes
Regular wear and tear can cause brake pads or shoes to thin out, leading to decreased braking efficiency and potential damage to the rotors or drums.
Warped brake rotors
Overheating or uneven pressure can cause the brake rotors to warp, leading to vibrations and reduced braking performance.
Engine misfires
V-shaped engines, especially with 8 cylinders, can experience misfires due to issues with spark plugs, ignition coils, or fuel injectors.
Oil leaks
V8 engines are prone to oil leaks from valve cover gaskets, oil pan gaskets, or rear main seals.
Cooling system issues
V-shaped engines generate significant heat, which can lead to problems like radiator leaks, thermostat failures, or water pump issues.
Fuel system problems
LPG conversions can lead to compatibility issues, including fuel line leaks, injector clogs, or improper fuel-air mixtures.
Timing chain or belt wear
Over time, the timing chain or belt can stretch or wear out, causing timing issues and potentially severe engine damage if not addressed.
Exhaust manifold leaks
V8 engines can develop cracks or leaks in the exhaust manifold, leading to increased noise and potential exhaust fumes entering the cabin.
Transmission problems
Older GMC Suburban models can experience transmission issues such as slipping gears, delayed engagement, or complete failure.
Suspension wear
The heavy weight of a 1991 GMC Suburban can cause wear and tear on suspension components like shocks, struts, and bushings.
Rust and corrosion
Older vehicles, particularly those from 1991, are susceptible to rust and corrosion on the body and frame, which can compromise structural integrity.
Found This Tool Helpful?
Support VinCyP to keep this service 100% free for everyone!