1998 GMC Jimmy Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1998 GMC Jimmy

1998 GMC Jimmy Problems

Check Engine Light With Code P1870

Vehicles equipped whit a 4 speed automatic transmission may develop a harsh 1-2 shift and/or illumination of the Check Engine Light with code P1870 stored. This can be caused by wear of the bore for the TCC isolator and regulator valves in the valve body. This condition does not commonly occur until the transmission reaches normal operating temperature. If the valve body is worn, replacement will be necessary to correct this concern.

ABS Light Due to Brake System Control Unit Failure

The Anti-lock brake system (ABS) control unit may fail internally causing the ABS warning light to illuminate.

Replace Fuel Filter Every 30,000 to Prevent Fuel Pump Failure

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.

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1998 GMC Jimmy Questions

While running the heater this morning for about 10 min I noticed while I was stopped at a red light I was losing battery power fast, Shut the heat off and the battery gauge return to normal? Whats Wrong (1 answer)

Will an engine from a 2000 gmc jimmy fit in my 98? (1 answer)

My 98 engine overheated and I tried to save it. I have a 2000 jimmy 4x4 engine that looks almost the same but will it fit in my 98?

Why my truck runs really rough after adjusting rocker arm. (3 answers)

My car was knocking so i found a rocker arm loose on cylinder 6. The nut was tight to spec 18ft.lb, i tried tightening to 20ft.lb and did not change anything. I put a washer between rocker ball and rocker nut and tighten to 18ft.lb and it worked, i could still move rocker arm from side to side ...

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1998 GMC Jimmy Recalls

Recall 98V053000
VEHICLE DESCRIPTION: MULTI-PURPOSE PASSENGER VEHICLE EQUIPPED WITH 4-WHEEL DRIVE OR ALL-WHEEL-DRIVE. ONE OR BOTH OF THE ATTACHING NUTS FOR THE RIGHT-HAND LOWER CONTROL ARM ARE UNDER TORQUED. THIS CAN ALLOW THE ATTACHMENT BOLT TO LOOSEN AND SUBSEQUENT BREAK RESULTING IN SEPARATION OF THE LOWER ...
Recall 97V218000
VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND MULTI-PURPOSE PASSENGER VEHICLES. A FATIGUE FRACTURE OF THE REAR AXLE RIGHT-HAND BRAKE PIPE CAN OCCUR CAUSING A SLOW BRAKE FLUID LEAK RESULTING IN A SOFT BRAKE PEDAL. IF THE BRAKE PIPE BREAKS, THE DRIVER WOULD EXPERIENCE A SUDDEN DROP IN THE BR...

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1998 GMC Jimmy Reviews

When I bought mine used, dealer had to replace gas pump. I have issues with the steering being loose and the suspension being swaying and bouncing, yet when I took it to dealer, they tell me that it has a floating suspension. Ummm. no, I don't think so, I get whiplash when driving it. They eventually replaced the idler arm, and tightened the pitman arm, but I will be needing a new one soon. Th...
Bought a 98 Jimmy in 2007 and have not stopped repairing it since! Total lemon and the worst used car/truck I have ever owned in my 25 plus years of driving. In the first 3 months I had to replace the fuel pump, radiator, ball joints, idler arm, brake pads and as I type I am waiting for my mechanice to replace wires and plugs. Still need shocks, my a/c compressor leaks and I have not had a/c f...

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