GMC S15 Jimmy Repair and Maintenance

A guide to problems, costs, maintenance and repair for your GMC S15 Jimmy

GMC S15 Jimmy Problems

Electrical Contacts in the Ignition Switch May Fail

The electrical contacts in the ignition switch may fail and result in erratic instrument panel gauge operation or illumination of the Check Engine Light. A failed ignition switch will require replacement.

Heater Core Under Right Side of Dashboard May Leak Engine Coolant

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.

Transmission Output Seal May Leak Fluid

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.

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GMC S15 Jimmy Questions

How do I change the break switch, what does it look like, and where exactly is it located on a 1989 S15 Jimmy? (1 answer)

I brought a part but It doesn't seem like right part. It's long, with two terminals on one endend, and a threaded end with plunger. The same switch is on the front of my break shaft not the back, that's why I think I might have the wrong part.

what would be the best way to get the door off of another truck then re-install (1 answer)

sloppy handling and tire leaning out on my 91 jimmy (1 answer)

i have a s15 jimmy with a 3' body lift and torsion bars cranked a lil with a shackle lift. the ffront pass tire is leaning out on the top and theres a vibration in the front. also i have a leaf spring cracked around the bushing in the rear and my handling is really sloppy on the highway. any ...

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GMC S15 Jimmy Reviews

good car lasted over 10 years with 190000 miles on it
this truck has been great, bought mine with 75000 miles on it last november. i have had to put a new exhaust system because the catalytic converter went bad but besides that i love this truck, this is a mean little truck and it can handle just about anything
My 1991 S15 Jimmy has been great for me, i have experienced some of the common problems like the power window motors going bad or the heater core leaking coolant onto the front passenger side of the floor. But besides these minor problems this truck has been nothing less than great for me.

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