Problems · by component

2002 Pontiac Montana engine and engine cooling problems

26 owner complaints to NHTSA about the 2002 Pontiac Montana cite engine and engine cooling, 19% of all 135 complaints for this model year.

Complaints
26
19% of all complaints
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the engine and engine cooling

Verbatim from NHTSA complaints, newest first
“BOUGHT MY CAR USED IN 2006,AIR BAG LIGHT HAS COME ON A FEW YEARS LATER,DEALER WON'T FIX IT BECAUSE I DON'T QUALIFY FOR RECALL,TELLS ME CAR CAME FROM CANADA. DEPENDING ON WHERE YOU CHECK MY VIN IS ALSO REGISTERED IN THE US. MY CAR IS NOW LEAKING COOLANT,ONE REPAIR SHOP IS SURE IT'S THE INTAKE GASKET,BUT I CAN'T GET THIS FIXED EITHER BECAUSE IT'S NOT UNDER RECALL YET I DID MY OWN RESEARCH AND FOUND MILLIONS OF PEOPLE ARE GETTING THE SAME PROBLEMS. I SURE WISH I COULD QUALIFY FOR AT LEAST ONE OF THE PROBLEMS I'M HAVING. *TR”
Owner complaint to NHTSAFiled Feb 21, 2009Engine and engine cooling, Air bagsODI 10259555
“CATASTROPHIC ENGINE FAILURE AT ONLY 104,000 MILES WITHOUT ANY WARNING. PROBABLY DUE TO DEXCOOL BUT UNABLE TO PARTICIPATE IN CLASS ACTION SETTLEMENT BECAUSE FAILURE HAPPENED AFTER CLASS ACTION DEADLINE. THIS IS STILL HAPPENING WITH THESE GM VEHICLES BUT NO RECALL IS BEING ISSUED. IN OUR CASE, HAD CATASTROPHIC ENGINE FAILURE IN THE MIDDLE OF THE HIGHWAY, STRANDING US IN A VERY DANGEROUS POSITION. *TR”
Owner complaint to NHTSAFiled Nov 10, 2008Engine and engine coolingODI 10248321
“I ALSO HAD THE PROBLEM WITH THE LOWER INTAKE VALVE GASKET BUT INSTEAD OF ONE TIME OF PAYING 5-700.00 TO HAVE IT FIXED I HAVE HAD TO HAVE IT DONE TWICE AND MY VAN ONLY HAS 84,000 MILES ON IT I KNOW THAT THERE ARE ALWAYS PROBLEMS BUT I THINK THAT IF THIS MANY PEOPLE HAVE HAD THE SAME PROBLEM THAT THEY SHOULD DO SOMETHING ABOUT IT. *TR”
Owner complaint to NHTSAFiled May 11, 2008Engine and engine coolingODI 10227394
“I HAVE NUMEROUS PROBLEMS WITH THE COOLING SYSTEM WITH THIS 2002 GRAND AM. FIRST THERMOSTAT WENT. HAD THERMOSTAT REPLACED -- CAR CONTINUED TO RUN HOT , LOSING POWER AND SHUT OFF.... HAVE REPLACED WATER PUMP, HOSES, AND INTAKE VALVE AND PROBLEM STILL EXISTED WITH CAR LOSING PRESSURE AND RUNNING HOT. ALSO HAD HEAD GASKETS REPLACED BECAUSE OF THIS PROBLEM.... THIS CAR HAS STOPPED ON ME 4 TIMES ON THE HIGHWAY.... IN CHECKING OUT OTHER COMPLAINTS THERE SEEMS TO BE PROBLEM WITH THE COOLING SYSTEM.... WHAT CAN I DO TO HAVE THIS CAR REPAIRED -- CAN A RECALL BE ISSUED.... PROFESSIONALS ARE AT A LOSS AS TO WHAT THE PROBLEM IS???? *TR”
Owner complaint to NHTSAFiled Oct 23, 2007Engine and engine coolingODI 10206647
“TL*THE CONTACT OWNS A 2002 PONTIAC MONTANA. THE CONTACT STATED THAT THE HEAD GASKET AND THE INTAKE GASKET HAD CORRODED FROM A COOLING LEAK. SHE ALSO EXPERIENCED OVERHEATING AND THE ONLY COOLANT THAT THE DEALER IS TELLING HER TO USE IS DEX COOL. THE CONTACT STATED THAT THIS TYPE OF COOLANT HAS BEEN KNOWN TO CAUSE FAILURES AND THAT THERE SHOULD BE SOME OTHER TYPE OF COOLANT TO USE. SHE STATED THAT THE POWER DOOR ON THE PASSENGER SIDE HAS SIGNS OF CORROSION, THE FUEL GAUGE IS ERRATIC AND PREVENTS HER FROM KNOWING THE AMOUNT OF FUEL IN THE VEHICLE, THE DRIVER SIDE FRONT TIRE HUB IS LOOSE, THE OVERHEAD CONSOLE FOR THE TEMPERATURE AND COMPASS HAS FAILED, AND THE AIR CONDITIONING HAS A HOLE IN THE HOSE. ACCORDING TO THE MANUFACTURER, SINCE THE CONTACT CHANGED HER OWN OIL, THAT IS THE REASON SHE IS EXPERIENCING SO MANY FAILURES. THEREFORE, THE MANUFACTURER STATED THAT THEY ARE NOT LIABLE. THE VIN IS UNKNOWN. THE CURRENT AND FAILURE MILEAGES WERE 70,000.”
Owner complaint to NHTSAFiled Jun 8, 2007Engine and engine cooling, Fuel system, other, Electrical system, Tires, EquipmentODI 10192771
“TL*- THE CONTACT STATED SHE TOOK THE 2002 PONTIAC MONTANA TO A MECHANIC AND THEY NOTICED THAT THE INTAKE MANIFOLD GASKET WAS DAMAGED. THE MECHANIC INFORMED THE CONTACT THAT COOLANT WAS LEAKING ONTO THE EXTERIOR OF THE ENGINE AND THE OIL WAS LEAKING INTO THE COOLANT RESERVOIR. THE MECHANIC INFORMED THE CONTACT THIS WAS DUE TO A FLAW WITH THE INTAKE MANIFOLD GASKET. THE INTAKE MANIFOLD GASKET WAS REPLACED AND THE COOLANT SYSTEM WAS FLUSHED. THE CONTACT HAS NOT EXPERIENCED THE PROBLEM SINCE THE REPAIR. THE VEHICLE CURRENTLY HAD 65000 MILES. *AK”
Owner complaint to NHTSAFiled Mar 14, 2007Engine and engine coolingODI 10185034

Showing 6 of 26 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.