Mechanics

SPEEDOMETER NOT WORKING

GMC Envoy

2004 Envoy speedometer on 60,000 mile vehicle
Odometer works sometimes but at other times it is all over the place - may show 100MPH
not predictable
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Ctfamiller
October 23, 2007.



Get the vehicle speed sensor check for a start.
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Rasmataz
Nov 15, 2007.
Common problem with this vehicle. The speedometer stepper motor has a cracked gear in it.

Tiny
Mrwhizard
Jan 4, 2008.

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