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Resources for the Repair and Maintenance of your 1998 GMC Jimmy

1998 GMC Jimmy

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1998 GMC Jimmy Problems

Brakes -- Verified

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

Heating & Air Conditioning -- Verified

The heater core under the right side of the dashboard may leak engine coolant which can puddle on the passenger front floor. The loss of coolant may cause an engine overheating condition. Our technicians tell us that removal of the dash board is necessary to replace the heater on these vehicles.

Engine -- Verified

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.

Drive Train -- Verified

The transmission output shaft seal may leak transmission fluid. On 2WD models, this leak can cause the transmission mount to become oil soaked, which will require replacement of the mount along with the leak repair. On 4WD models, if this seal leaks, the fluid will leak into the transfer case, causing it to become overfull.

Drive Train -- Verified

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.

1998 GMC Jimmy Recalls (Recent)

Brakes, December 15, 1997

Summary: 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 BRAKE PEDAL, THE INSTRUMENT PANEL BRAKE LIGHT WOULD ILLUMINATE, AND THERE WOULD BE A LOSS OF REAR BRAKE PERFORMANCE.

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Suspension & Steering, January 22, 1998

Summary: 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 CONTROL ARM FROM THE FRAME.

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1998 GMC Jimmy Questions and Answers

Jimmypoor, 1998 GMC Jimmy, Elgin, NE

I have replaced the radiator on my 1998 JMC Jimmy and continue to gave problems with the car overheating. I have also replaced the thermostat several times. The gauge fluctuates back and forth.

betib, 1998 GMC Jimmy, Fort Mohave, AZ

The latch that releases the back seat so it folds down has broken off. How can I get the back seat down without it?

deman, 1998 GMC Jimmy, Homestead, FL

the fuel gage remains on empty. Enough fuel on it, the tank is ok.They told me problem is the electrical chip behind the cluster. Where i have to buy a new one, or find to replace it?What s the rig...

purpleraintara, 1998 GMC Jimmy, Lansing, MI

I am having problems with my jimmy starting.. It will start but after a few trys.. sometimes tooo many!
I had it connected to a diagnostic- it says it could be oxygen sensor defective or ignition ...

98gmcjimmy, 1998 GMC Jimmy, Hollywood, AL

I am having problem with some of my gauges the gas gauge wont work the battery light will stay on when truck is running and the temperature gauge doesn't work? What would be the problem and ho...

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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. The brakes ABS system fails now and then, and the security light comes on alot and the truck will stall and sometimes not start. I am getting all this and more fixed next year. Other than that, its a sharp looking vehicle, love the leg room and storage space.

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 for two years (cant afford the $1000 plus to fix it). Leaked oil everywhere until I had the oil assembly replaced. Oh yes, and front brake pads replaced. My husband tried to recline in the passenger seat this summer while we were taking a road trip and the lever literally snapped off in his hand! I now need a multif function switch replaced as my right signal light is clicking rapidly when I use it and makes a sputtering noise in the cold weather. A money pit that I am going to get rid of asap and NEVER buying GMC again. Back to the Hondas and Toyotas for me.

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