Hi,
I have an 03 Chevy Tahoe with 110,000 miles, the last few months my gauges in the panel have being failing ( false readings) mainly the speedometer, gas, temperature gauges, usually there are way up, this is happening intermittently only. sometimes all of them are working fine but some is either one or more not working properly. Is there a fuse or some thing I can try to change?? any help would be greatly appreciated. Thanks.

 

do a search; on 'servos' i think that model year(s) had crappy parts and they are failing, the parts (better ones) are on ebay or something... but i'm pretty sure i've seen this before...

 

Sounds like the stepper motors. My 03 Yukon has the same problem with the speedo.I bought a stepper off ebay last week for $12 shipped.I am probaly gonna tear into her tonight to put it in.I have found some good instructions to do it.The part # is a X25.168 I believe.If you google that it will show a post in another forum on how to do it.