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2003 GMC C1500 service 4WD

DAVIDGMCP/U1500

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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

JACOBANDNICKOLAS

MECHANIC
109,700 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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