Problems · by component
2003 Pontiac Grand Am engine and engine cooling problems
28 owner complaints to NHTSA about the 2003 Pontiac Grand Am cite engine and engine cooling, 8% of all 338 complaints for this model year.
Complaints
28
8% of all complaints
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
What owners say about the engine and engine cooling
Verbatim from NHTSA complaints, newest first
“VEHICLE CONSTANTLY OVERHEATS COOLING FAN DOES NOT COME ON. FLUID LEVEL NEEDS REPLENISHED CONSTANTLY. ENGINE PRESSURE BUILD UP FROM THE OVERHEATING. STILL CANNOT RESOLVE THE PROBLEM AND VERY COSTLY TO REPAIR IN THE SHOP. PLEASE DO SOMETHING WITH THESE CARS HAVE RESEARCHED LOTS OF THE SAME ISSUES ON THE INTERNET. ESTIMATED COST TO REPAIR 967.00. WHICH SOME PEOPLE CANNOT AFFORD. THIS IS A MANUFACTURE ISSUE AS THE INTAKE MANIFOLD SEEM DEFECTIVE. *TR”
“WAS ON THE FREEWAY WHEN CAR STARTED OVER HEATING AND JUST SHUT OFF. I HAD TO ROLL ONTO THE SIDE OF THE FREEWAY WAS ALMOST HIT BY TWO DIFFERNT CARS. HAD IT TAKEN TO DEALERSHIP I BOUGHT IT FROM THEY FIXED THE HEAD GASKETS, BUT CAR IS STILL OVERHEATING. *TT”
“TL*THE CONTACT OWNS A 2003 PONTIAC GRAND AM. THE CONTACT STATED THAT THE VEHICLE WOULD NOT INITIALLY START UP. AFTER A FEW MOMENTS, THE VEHICLE WAS ABLE TO BE STARTED AND TAKEN TO A LOCAL REPAIR SHOP, BUT THE FAILURE COULD NOT BE DUPLICATED. THE CONTACT ALSO STATED THAT WHEN DRIVING FOR MORE THAN 30 MINUTES WITH THE HEAT OR AIR CONDITIONER ON, THE VEHICLE WOULD SUDDENLY STALL AND SHUT DOWN. SHE LET IT SIT FOR 30 MINUTES AND IT WOULD RESTART, BUT THE FAILURE WAS INTERMITTENT. THE VEHICLE WAS TAKEN TO A LOCAL REPAIR SHOP WHERE A FUEL PUMP WAS INSTALLED BUT THE FAILURE OCCURRED AGAIN AFTER THE REPAIR. THE CONTACT CALLED THE MANUFACTURER WHO OFFERED NO ASSISTANCE. THE CURRENT MILEAGE WAS APPROXIMATELY 113,000. THE FAILURE MILEAGE WAS UNKNOWN. UPDATED 07/01/11”
“2003 PONTIAC GRAND AM GT STARTED NOT STARTING 8 MONTHS AGO, NOT A REGULAR THING ON/OFF, BEEN TOWED NUMEROUS TIMES HAS COST ALOT OF MONEY IN FEES, HAD NEW IGNITION, NEW KEY. OLD PART IS AVAILABLE. TRIED TURNING KEY ON WAITING 10 MINUTES DOESN'T CHANGE ANYTHING. CAR WILL START WHEN IT FEELS LIKE IT, SOMETIMES LEAVING MY YOUNG DAUGHTER AT WORK LATE AT NIGHT. *TR”
“I HAVE A 2003 GRAND AM GT, SEEN OTHERS HAD INTAKE MANIFOLD ISSUES TOO, HEARD THERE WAS A RECALL ON 2002 BUT NOT 2003, LOOKING IF THERE IS A RECALL ON IT, IF SO HOW DO I GO ABOUT FIXING IT, BECAUSE I ALREADY PAID $600 TO GET IT FIXED BECAUSE I HAD TO, THE GRAND AM IS OUR MAIN CAR TO TRANSPORT BOTH CHILDREN PLACES. ALSO, THE ACCELERATOR ISSUES...I HAVE YET TO GET A EMAIL, OR LETTER OR ANYTHING FOR THAT MATTER ABOUT ANY OF THE RECALLS ON THIS VEH...DO THEY PICK AND CHOOSE WHO THEY SEND THEM TO OR WHAT? *TR”
“TL*THE CONTACT OWNS A 2003 PONTIAC GRAND AM. WHILE DRIVING APPROXIMATELY 35 MPH, THE ENGINE STALLED WITHOUT WARNING. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER FOR INSPECTION, BUT THEY COULD NOT DUPLICATE THE FAILURE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER ON FOUR SEPARATE OCCASIONS FOR THE IDENTICAL FAILURE, BUT THERE WERE NO RESOLUTIONS. THE FAILURES OCCURRED INTERMITTENTLY. THE VEHICLE OWNER'S MANUAL SPECIFIED A DEFECT WITH THE PASS LOCK AND ANTI-THEFT DEVICE SYSTEM, WHICH COULD RESULT IN UNEXPECTED STALLING. THERE WERE NO INJURIES, BUT THE DRIVER STATED THAT THIS WAS A LIFE THREATENING SITUATION. THE FAILURE MILEAGE WAS 27,000 AND CURRENT MILEAGE WAS 28,300.”
Showing 6 of 28 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.