1996 gmc jimmy won't start. For a couple of weeks when the key was turned on the ''idiot'' lights on the dash wouldn't come on and it would crank but not start. Eventually the ''idiot'' lights would come on and then it would start fine. Yesterday it did the same thing except now it won't start even when the ''idiot'' lights come on. I'm thinking maybe a short across a cell in the battery. Any ideas?

SOURCE: Freeze Plug Leak on my 1996 GMC Jimmy

It is usually a simple and inexpensive repair.

SOURCE: 2000 GMC Jimmy won't start

Hi: Have run into same type of problem, turned out to be a dead or very battery. Has nothing to do with the ignitin switch. With a low battery have also had trouble getting the key out of a 95 Jimmy. Boost unit to get running then discommect battery, if unit stall right away replace alternator, if stays running replace battery. If you get the unit runnimg and try to drive it as is you should find lacks power and wants to stall.

Marvin

• 85242 Answers
• Posted on Feb 02, 2009

SOURCE: 1996 gmc jimmy

MOST LIKELY THE FUEL PUMP HAS FAILED, WHEN U TURN THE KEY TO RUN POSITION DO U HEAR A HUMMING NOISE FROM THE FUEL TANK? THIS NOISE WILL STOP IN ABOUT 5 SECONDS, U CAN HEAR IT BETTER BY TAKING OFF THE GAS CAP AND LISTENING THERE, IF U HEAR NOTHING THEN THE PUMP WILL HAVE TO BE REPLACED.

SOURCE: How do I remove the rear axle to replace the seal 1996 jimmy

You will have to remove the differential cover on the rear end, in the center of the gear cluster you'll have to rotate your axle until it exposes the ends of the axle shafts, push in the axles as far as you can from the brake pad assembly area, then, there this a C clips that slips into a groove on the end of the axle, you'll have to reove the C clip to pull out the axle.

SOURCE: 1996 GMC Jimmy will not shift into overdrive.

4th gear failure is a common problem with this transmission, assuming it is an automatic. You should have the vehicle checked for codes by a qualified repair center with the proper scan tool. Also, check fluid level and condition. More often than not, the trans loses 3rd and 4th gear, as these are working off the same set of clutches. 3-4 clutches apply in 3rd, and when the 4th shift is made the 2-4 band applies giving you overdrive. If you have no engine braking in manual 3rd, you definitely have a mechanical failure, no 4th could be an electrical, or mechanical fault.