i have this c10 that has come in for over charging (17-19 volts)previous techs have replace alternator 3 times with ac delco [...] vehicle does have after market radio, alarm, [...] notice over charge condition on aftermarket gauge ,not on factory gauge. after...

FIX posted 10/5/2009

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle