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GMC Forum: 2000 gmc 4 wheel drive problem
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Old 06-15-2013, 02:22 PM
RcChamps3 RcChamps3 is offline
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Join Date: Jun 2013
Posts: 1
Default 2000 gmc 4 wheel drive problem

i just got a 2000 GMC 2500 and wouldn't you know it a week later the 4 wheel drive stops working, i put a new push switch in it and still no luck, the fuse is good in it the kid who had it before me told me he just put an actuator in it so i don't believe it is that either, when i hit the 4 wheel drive high button i can here the actuator try to engage but a few seconds later it stops making noise and goes back into 2 wheel drive. does anyone have any thoughts on what it could be and what i should do next?
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Old 06-18-2013, 11:27 PM
Shane Mane Shane Mane is offline
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Join Date: May 2012
Posts: 25

You might have to get the TCCM codes checked. It should show you the code and that itself might have to be reset. Nine times out of ten, its the switch but considering you replaced it, its most likely a code.
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