Question about 2004 GMC Envoy
Need to take the vehicle and put it on a lift where the wheels dangle in midair.. unce raised look at the drive axles and see if the joints are messed up.. that sounds like the problem to me..one of the c v joints may be broken..
Posted on Dec 16, 2013
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Posted on Jan 02, 2017
I also have a 2002 Envoy. Shifting to and from 4wh and 4wa can be done on the fly but shifting to 4wL has to be done stoped and while in neutral. Try that. Otherwise I'm afraid its a new computer for you. Its located under the left rear seat and you need a loan for one.
Posted on Sep 18, 2009
The brake rlease switch for the gearshift might need adjusted-replaced or the shifter itself might need adjusted
Posted on Mar 23, 2010
GM has had more that their fair share of transfer case problems. I have also seen may problems caused by addition of aftermarket equipment - especially remote starters. There is a good chance that you have a damaged transfer case, but if an electrical problem was the root cause of the damage, you will only destroy a new transfer case if the electrical problem is not resolved. If the mechanic that you are going to does not have the proper equipment and/or information to diagnose your transfer case control circuits, you should consider getting a second opinion from the dealer before buying a new transfer case. I currently work in an aftermarket shop. There are several of the GM 4 wheel drive systems where the manufacturer has not released the information necessary for an aftermarket shop to properly diagnose and repair the system. Some mechanics are simply to proud to say "I can't" or "I don't know".
Posted on Jan 22, 2011
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