Mechanics

4 WHEEL DRIVE NOT WORKING

2000 GMC Jimmy

My 2000 jimmy with 76,000 miles 4 wheel drive isnt working. My vehicle is 2 wheel rear and by pushing a button on the dash goes into 4 wheel drive lo or high. What could be wrong? Is it expensive to fix?
Second question, what should I expect to pay for a tune up for this vehicle?
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Djelloe
May 10, 2006.



Replace the 4WD button assembly

Tiny
Quagmire
Jul 23, 2006.