I own a 2007 Pontiac Grand Prix, base model, v-6, I have replaced my battery, starter, and alternator, ans also the part that snaps into the alternator. My car still will not start. It originally said charging system failure. Please help.
Are you getting power to car (lights come on, dash, etc.?) If you have power, check the starting and ignition circuits - starter relay, fuses. May want to confirm power is reaching starter by doing a voltage drop test to it. Check all your fusible links are good. Obviously make sure all wiring is good. I'm assuming the "part you snap to the alternator" you mean the voltage regulator, again make sure wiring is correct.
