i got a 2004 gmc sierra last year, and I am stumped with the guage cluster. It's a brand new cluster from the dealership (that cost a lot), but it still has the same issue as the original cluster, which leads me to believe is a wiring issue. Yet none of the wires are damaged :| I even went as far as to re solder most of the old cluster, and ended up breaking it going down the highway @ 60mph :\ I have wiring diagrams and stuff for both of my vehicles, but this 2004 is STRANGE. Does anyone have any ideas at all? Lol 2004 GMC Sierra 2500HD 6.0l
I can’t help with your problem, but you might want to try posting that here: https://www.gmtruckclub.com/ I am a member there, it’s a great group, someone should be able to help you out.
