2002 GMC Envoy 4 Wheel Drive

Tiny
THERRINGTON
  • MEMBER
  • 2002 GMC ENVOY
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 11,540 MILES
Good Morning: My 4 wheel drive lights are not functioning, nor is the 4 wheel drive. I have looked in the owners manual and there is nothing listed regarding same. Is there a fuse involved that I am not aware of, or is this a more serious problem. Any ideas on repair and is it an extensive repair situation?

Thank You.

Tim Herrington
Saturday, January 10th, 2009 AT 10:24 AM

1 Reply

Tiny
JAMES W.
  • MECHANIC
  • 2,394 POSTS
There are actually 3 fuses that control your 4WD system. 1- 15A main fuse in the block under the left rear seat. A 10A and 15A in the block under the hood. Sorry I can't give you the fuse #'s, they weren't listed. There is also a module for the 4WD under the left side of the dash. If you have, or have access to, a fax # I can ship you a copy of the wiring diagram. I can download it to this site, but they are so compressed they don't come out very clear.
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Saturday, January 10th, 2009 AT 3:09 PM

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