2003 GMC C1500 service 4WD

Tiny
DAVIDGMCP/U1500
  • MEMBER
  • 2003 GMC C1500
2003 GMC C1500 V8 Four Wheel Drive Automatic 120k miles

service 4 wd message lights up also there is a lot of squeaking when excelerating, also the speedometer doesnt always work
Friday, April 9th, 2010 AT 2:43 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
If the light is on, there should be a code stored to identify the problem. The computer needs scanned to identify the problem. If I had to guess based on your description, I would say there is a problem with one of the speed sensors. Have that checked and let me know what you find.
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Saturday, June 5th, 2010 AT 8:11 PM

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