Every night all night too?
Needs a SCAN test of the instrument cluster to start with!... Code reader wont help!!
Yes every night too I put a new Custer in it worked fine for one day then rpm hi gauge started going crazy took car to get the codes read after that all of them
A SCANNER can actually test the gauges!!
Do you have to go to Pontiac Dealership to have scan test done?
No! Any independent shop 'should' be equipped to do this!