I have a 2000 Jimmy and the 4 wheel drive won't work. Replaced dash switch, vacuum actuator. Has vacuum but still won't engauge. What do you suggest now?

Asked by teet1 Dec 11, 2013 at 08:23 AM about the 2000 GMC Jimmy 4 Dr SLE 4WD SUV

Question type: Maintenance & Repair

Took out the control module on the passenger side behind panel under glove box, and cleaned one corroded terminal also. Could this part be faulty? Sick of throwing parts at it.

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Andrew answered 11 years ago

it could be the front diff itself. Have you taken it off the actuator and tryed to pull the cable?

Mark helpful

teet1 answered 11 years ago

Yes, and the cable works freely. Picked up a used control module that is guaranteed to work. We'll see if that helps.

Mark helpful