2004 GMC C2500 V8 Four Wheel Drive Automatic 100000 miles
Hello.I have 2004 GMC sierra 2500 and I washed my engine and now I have a problem with the gages. First was on the engine light and oil pressure was over.I cleaned all the wires with contact cleaner I took. Off the negative from the battey and everthing was fine. After 10 min the gage from the battery it show over all the time doesn't matter if the contact is on or off
what do I need to do now?