Question about 1999 GMC Jimmy
You can shift into and out of 4wd hi in any gear even when vehicle is moving. You must stop and put in neutral to shift into or out of 4wd low.
To see if it is working, go to a dirt field or on the beach if one is available. Put truck in four wheel drive, turn steering wheel all the way one way or the other and stick you head out the driver window and look at the front tire and "PUNCH IT". If the four wheel drive is working you will see the front tire spin. Hope this helps.
Posted on Jun 21, 2009
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Posted on Jan 02, 2017
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