i have a escalade gauge cluster from an 02 escalade... every other gauge works fine except the rpm gauge... if you bump the dash it jumps up to where it needs to be for about 2 seconds and falls back to zero. The other day when it was about 40* outside it worked until the inside of the truck warmed up.. any suggestions?

 

Bad Stepper motor?

 

is that the motor to move the needle? if so how do you fix that?

 

yes the stepper motor moves the needle. you can buy a new motor and carefully take the needle off that one and put it on the new one.
If you check the forum there should be a thread on how to do it. Try searching for Stepper

 

cool thanks man

 

any clue on which one it is or a part number maybe?

 

no idea. If you find a thread on how to do the install it should have the part numbers IIRC