The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.
Resources for the Repair and Maintenance of your 1991 GMC Jimmy
1991 GMC Jimmy
1991 GMC Jimmy Problems
The power door lock actuators may become slow to operate or stop working completely and require replacement.
The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell us that operating the engine with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.
A coolant leak may develop from the water pump. The engine may overheat as a result of the coolant loss. A leaking water pump should be replaced.
The throttle body gasket may develop a vacuum leak which may result in a higher than normal engine idle. Failed gaskets will require replacement.
1991 GMC Jimmy Recalls (Recent)
Summary: THESE VEHICLES EXHIBIT A CONDITION IN WHICH A REAR SEAT BELT BUCKLE RELEASE BUTTON CAN STICK IN THE UNLATCHED (DOWN) POSITION UNDER CERTAIN CONDITIONS BECAUSE THE BUCKLE ASSEMBLY CAN MOVE INSIDE THE SEAT BELT COVER. IF THE COVER MOVES FAR ENOUGH, IT CAN CREATE AN INTERFERENCE CONDITION WITH THE LATCH RELEASE BUTTON. WHEN IT DOES, THE SEAT BELT BUCKLE CANNOT BE LATCHED.Learn more »
Summary: USE OF IMPROPER PRIMER ON METAL SURFACES OF WINDSHIELD AND SIDE WINDOW OPENINGS COULD CAUSE LOW ADHESION TO THE METAL SURFACE AND WOULD NOT PROVIDE RETENTION REQUIRED BY FMVSS 212.Learn more »
Summary: VEHICLE DESCRIPTION: CERTAIN 4-WHEEL DRIVE PICKUP TRUCKS AND SPORT UTILITY VEHICLES EQUIPPED WITH ABS (ANTILOCK BRAKING SYSTEM) MANUFACTURED FROM SEPTEMBER 1989 THROUGH AUGUST 1996. UNDER CERTAIN DRIVING CONDITIONS THE SWITCH WHICH SIGNALS THE ABS SYSTEM WHETHER THE VEHICLE IS IN 2-WHEEL OR 4-WHEEL DRIVE CAN MALFUNCTION CAUSING INCREASED STOPPING DISTANCES DURING ABS STOPS WHILE IN THE TWO-WHEEL DRIVE MODE.Learn more »
1991 GMC Jimmy Questions and Answers
i need the easiest way to change the flywheel cause i realy dont want to drop the tranny. thanks.
when you push the gas to take off it skips n if you dont let off the gas it will cut off we have had the coil replaced but it did not fix the prob.
also need to get idle speed solenoid, where?