2008 Pontiac Grand Prix
Mileage
10
Service Date
3/4/2026
Services Performed
- PERFORM MULTI-POINT INSPECTION – READ NOTES
- TECH FOUND THAT THE VEHICLE HAD NO SPARK. HAD GOOD INJECTOR PULSE AND HAD FUEL PRESSURE OF 55 PSI. TECH THEN SCOPED THE CAM AND BOTH CRANK SIGNALS GOING TO THE IGNITION CONTROL MODULE. ALL THREE WERE GOOD 5 VOLT SQUARE WAVE FORMS. THEN TESTED POWER AND GROUND GOING TO THE IGNITION CONTROL MODULE. I HAD 12.3 VOLTS ON THE POWER AND A GOOD GROUND. I SAW THE LAST COIL HAD A CRACK IN IT AND WAS MELTED. SO I TESTED TO POWER AND GROUND GOING TO THE COIL. IT WAS GETTING CONSTANT POWER AND GROUND TO THE COIL. WHICH MEANS IT WAS TRYING TO FIRE THE COIL EVEN WHEN THE CAR WAS NOT RUNNING JUST KEY ON. THE IGNITION MODULE IS BAD. REPLACED BOTH THE IGNITION MODULE AND COIL CAR STARTS AND DRIVES. THERE ARE OTHER THINGS THAT NEED TO BE FIXED AS WELL REEFER TO VEHICLES MULTI POINT INSPECTION.
- CRANK – NO START
- Replace failed ignition coil and module. Clean ground contacts for coil.
PRESTON J. gave our service a 5 star review on 3/4/2026
