Question about 2003 GMC Yukon

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The speedometer is off! its been off like 3mph compared to my gps. the other day it was saying i was doing 30 on the dash and my gps told me i was doing 55. got to the light and stopped, took off and it was back to 5mph off, it was jumping around which it hadnt done before. on a 2003 gmc yukon. 4x4 is it the guage or the speedo gear in the trans?

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Re:is it the guage or the speedo gear in the trans?

Hi.

Normally the repair knows if problem is speedometer or speed sender by replacing either ones. Sender is replaced first as this part is less expensive.

In your particular case, 2003 Yukon is known for having factory problems with speedo instrument in the dash.
On this car the problem is likely fixed replacing the speedomenter.

GM has issued a recall on Yukon and Sierra models from 2002 to 2005, covering the speedo malfunction repair cost (about $500). Go to the nearest dealer and ask info on recall and repair.

Here one of recall bulletins, there are more bulletins dealing with same fault, go to the dealer to find out if you vehicle is included in recall list.

Document ID: 2037454

Here links related to the issue:


Speedo recall forum

speedometer does not work

Speedo repair movie: http://www.youtube.com/watch?v=2u51-HTpweI

Posted on Sep 02, 2010

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