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GMC Jimmy Warning Lights and Gauges
I can shift it out of 2HI into Auto4WD, 4HI and 4LO...however, it will not go back into 2HI at all. If I unhook the battery for about 5 minutes and restart the vehicle it is back in 2HI.
I been told it could be a number of things, from the Transfer Case Control module, a vacuum leak, an actuator, shift module, etc.
I have a Chilton manual that gives details on how to replace parts, but doesn't really give any details as what needs replaced.
A couple of questions I have:
I've read about a number of different problems with 4wd, but I am wondering if anyone has experienced this particular problem and how was it fixed?
If I take it to a dealer and have them run the codes, does this tell them specifically what is wrong with it, or is it still a guessing game?
Does this light come on if the vehicle actually needs to have the transfer case serviced?