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
Avatar
Ctfamiller
October 23, 2007.




Get the vehicle speed sensor check for a start.

Tiny
Rasmataz
Nov 15, 2007.
Common problem with this vehicle. The speedometer stepper motor has a cracked gear in it.
AD

Tiny
Mrwhizard
Jan 4, 2008.

AD