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I have a 2003 GMC Envoy and the speedometer is stuck at 20 mph. How do I go about fixing this issue?

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Have the instrument cluster repaired or replaced

Posted on Jan 01, 2011

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Mc 2004 Envoy speedomiter reads in Km not mph ?


Guess.
Either the vehicle or the speedometer is from Canada, as is set up to run in that country.
Changing it will be a really big job, as you would have to take the dash apart, I think
If it were mine, I'd call a GMC dealer and ask them what it would cost to change it over.
If that were too expensive for you, you might consider finding a way to add MPH numbers to the plastic speedometer cover, like little stick on plastic numbers people buy at an office supply store.
Be blessed.

Feb 08, 2013 | 2004 GMC Envoy

2 Answers

Speedometer is working but reading way off


It appears that you need to have the speedometer calibrated. Unfortunately, this is very challenging. You'll need to take it to a mechanic. Dependent on where you take your Envoy it can cost around $75+

Jan 10, 2012 | 2003 GMC Envoy

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My speedometer seems to be giving me the wrong speed when i'm on the highway. It would say i'm doing 90mph while i would be doing 65 mph. How can i fix this ??


What is most likely happening is that the tiny electric servo motor which is what actually moves the speedometer needle is going bad. I've seen several where the speedometer or tachometer become erratic, inaccurate, or stick in place. If this is the case then the dash assembly has to come out and be repaired. There are several companies that can do this but I usually send ours to a GM dealer and have them send it out to get fixed. Usually they replace all the servos for all the instruments and I haven't seen one fail again after being repaired.

Jun 11, 2010 | 2003 GMC Envoy

2 Answers

My speedometer does not work on my GMC envoy


Pretty common problem with these. Here's a guide to learn how to fix GM instrument clusters yourself, I used it to fix mine and it worked great.How to guide for Envoy instrument cluster repair

Apr 16, 2010 | 2003 GMC Envoy

2 Answers

The speedometer on my 2004 Envoy is like 60 mph off. Instead of the speedometer being on 0 it is starts off between 60 to 70. Any suggestions


Pretty common problem with these. Here's a guide to learn how to fix GM instrument clusters yourself, I used it to fix mine and it worked great.How to guide for Envoy instrument cluster repair

Dec 18, 2009 | 2004 GMC Envoy

1 Answer

What is the biggest tire that will fit a 2004 GMC Envoy XUV with OEM 17" wheels? Will a 275/60-17 tire fit?


Stock Tire - 245/65R17
Revs per Mile:704.3
Overall Diameter: 29.53 in 750.06 mm
Actual Speed: 60 mph 100 km/h

Tire 1 - 275/60R17
Revs per Mile:693.5
Overall Diameter: 29.99 in 761.74 mm
Speedometer1: 59.0 mph 98.4 km/h
Speedometer Difference: 1.557% too slow
Diameter Difference: 1.54%

Will fit with the stock rims.

Dec 14, 2009 | 2004 GMC Envoy

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