Speedo not reading right

[dgbertrand]

When the trucks at an idle the speedo sometimes reads 85, sometimes 60, sometimes 20, depends on the day. Any idea what it could be and how to fix it ?.

 

[happy 2011]

again people
Year
make
model
motor size
Auto or manual trans
If you want answers then give info

 

[dgbertrand]

2003 GMC Sierra 1500 Atomatic 4.8 L V8 w/196,000 km. on it. Hope this helps.

 

[Molson02536]

2003 GMC Sierra 1500 Atomatic 4.8 L V8 w/196,000 km. on it. Hope this helps.

Stepper motor has gone bad and will need to be replaced, you can buy them on E-Bay for around $15.00 and replace them your self. Plan B would be that your replace the whole instrument cluster which is around $500.00.

http://cgi.ebay.com/ebaymotors/03-06-GM-Cluster-Chevy-Tahoe-Silverado-Stepper-Motor-/390139556785

http://www.gmtruckclub.com/forum/showthread.php?57231-Replacing-Stepper-Motor(s)

Hope this helps and keep us posted.

 

[dgbertrand]

Thanks alot!. You likley saved me $300.00 in shop fees alone, I'll let you know how I make out with it.

 

[Mark Samuel]

Stepper motor has gone bad and will need to be replaced, you can buy them on E-Bay for around $15.00 and replace them your self. Plan B would be that your replace the whole instrument cluster which is around $500.00.

http://cgi.ebay.com/ebaymotors/03-06-GM-Cluster-Chevy-Tahoe-Silverado-Stepper-Motor-/390139556785

http://www.gmtruckclub.com/forum/showthread.php?57231-Replacing-Stepper-Motor(s)

Hope this helps and keep us posted.

Hey thanks for the links, I think it will help people who are looking out for stepper motor replacement

 

[Britro]

It's probably the famous stepper motors. I got mine completely repaired at myairbags. Been working ever since