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Dave Nova
Dave Nova, GMC Technician
Category: GM
Satisfied Customers: 19451
Experience:  ASE Master Certification. GM World Class Certification
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My speedometer stopped working. 2003 Envoy XL Any suggestions?

Resolved Question:

My speedometer stopped working. 2003 Envoy XL Any suggestions?
Submitted: 6 years ago.
Category: GM
Expert:  Dave Nova replied 6 years ago.
Do all other gauges work correctly?
Customer: replied 6 years ago.
All other gauges work fine, as far as I can tell. About a year ago the gas guage failed and was fixed.
Expert:  Dave Nova replied 6 years ago.
Does the transmission still seem to shift when it should? Is the Check Engine light on?
Customer: replied 6 years ago.
Trans seems good, no check engine light.
Expert:  Dave Nova replied 6 years ago.
The problem is in the speedometer itself. The vehicle speed sensor is working correctly if the check engine light is not on and the transmission is shifting properly. The engine control computer is communicating with the instrument cluster if all the other gauges are working properly. The stepper motor that drives the speedometer needle has most likely failed. This will require replacement of the gauge cluster.
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