My 1997 jimmy will **** itself into 4wd and wont come out.
There is a vacuum switch on the top of the transfer-case on the driver's side that has gone bad. It's common on out jimmy's and will need to be replaced. Auto Zone or Parts Source will have that part and can give you the step by step instructions to replacing it and take about 15 min to replace. They go for around $25.00 at Auto Zone and $65.00 at the dealers and all you need is a 1 inch open end wrench i believe and patients. It's a tight fit to turn the wrench but you can do it and once loosen, just use your fingers. First disconnect the three vacuum line harness on the vacuum switch and then remove the switch. Once removed, install the new switch and vacuum lines and that's it. Good luck and buy and extra switch and keep it in the glove box. If you push the button for the 2wd, the transfer case will be on the 2wd selection and the front drive shaft will not have any torque to it but the front differential will still be engaged so you can drive it like that till you get a chance to replace the vacuum switch. Good luck and keep warm.
Dec 11, 2009 |
1997 GMC Jimmy