NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
50 reportsClear category filter128,123 miles · Apr 21, 2004
Engine And Engine CoolingPower Train
THE INTAKE MANIFOLD OR THE PLEMIUM WHATEVER YOU WANT TO CALL THE THING WORE OUT AND ALL OF MY ENGINE COOLANT WENT INTO THE FUEL CYLINDERS AND LOCKED MY MOTOR DOWN I WAS HEADED TO MACON GA FROM DOUGLAS,GA GOING TO THE HOSPITAL WERE THEY HAD TRANSFERED MY BROTHER AND HERE I AM IN PERRY,GA BROKE DOWN BECAUSE PONTIAC PUTS A PLASTI…
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THE INTAKE MANIFOLD OR THE PLEMIUM WHATEVER YOU WANT TO CALL THE THING WORE OUT AND ALL OF MY ENGINE COOLANT WENT INTO THE FUEL CYLINDERS AND LOCKED MY MOTOR DOWN I WAS HEADED TO MACON GA FROM DOUGLAS,GA GOING TO THE HOSPITAL WERE THEY HAD TRANSFERED MY BROTHER AND HERE I AM IN PERRY,GA BROKE DOWN BECAUSE PONTIAC PUTS A PLASTIC INTAKE MANIFOLD ON A MOTOR I FEEL LIKE PONTIAC SHOULD HAVE TO PAY FOR THIS PART BEING REPLACED. I ALSO HAVE TROUBLE WITH MY CAR SURGING BETWEEN 35 AND 55 MILES PER HOUR THIS IS THE SORRIEST CAR I HAVE EVER OWED AND I HAVE OWNED 2 GRAND PRIXS BEFORE THIS CAR BUT LIKED THE BODY STYLE OF THE BONNEVILLE AND I RHOUGHT THAT IT WOULD BE A GOOD CAR BUT BOY WAS I WRONG I BOUGHT THE CAR IN AUGUST,2002 AND HAVE SPENT ENOUGH MONEY ON REPAIRS ON IT THAT I COULD PROBABLY DONE PAID FOR ANOTHER GRAND PRIX.AFTER READING ALL THE COMPLAINTS ON THIS SIGHT I FEEL THEY SHOULD HAVE A RECALL ON THEM FOR THE TRANSMISSIONS AND THE INTAKE MANIFOLDS BECAUSE THEY ALL SEEM TO BE RELATED TO ME .PEOPLE PAY A LOT OF MONEY FOR THERE CARS AND STILL HAVE TO PUT MONEY IN REPAIRS ITS JUST NOT FAIR .*AK
NHTSA ODI #10067614
98,000 miles · Feb 19, 2004
Engine And Engine Cooling
WHILE DRIVING AT HIGHWAY SPEEDS VEHICLE STALLED DUE TO A CRACKED INTAKE MANIFOLD GASKET. THE INTAKE MANIFOLD GASKET WAS REPLACED. *AK THE CRACKED GASKET ALLOWED WATER TO LEAK INTO THE CYLINDER'S. *NM
NHTSA ODI #10053726
81,980 miles · Jan 23, 2004
Engine And Engine Cooling
1997 PONTIAC BONNEVILLE WITH DEXTROL COOLANT IS CAUSING CONSTANT TROUBLE. THE LATEST IS HAVING TO REPLACE THE PLASTIC INTAKE MANIFOLD TO THE TUNE OF $598.18. WHY IS THIS PIECE PLASTIC, BUT THE PIPE GOING INTO IT IS METAL? THE DEX COOL IS DETERIORATING ALL RUBBER SEALS. *LA
NHTSA ODI #10054730
Mileage unknown · Jan 15, 2004
Engine And Engine Cooling
I PAID THE STATED AMOUNT TO REPLACE A COMPONENT REFERRED TO ME AS A "PLENNUM". THE SYMPTOM MY CAR WAS HAVING WAS, IT WAS OVERHEATING. IT IS MADE OF PLASTIC AND IS MOUNTED ON THE TOP OF THE 3800 ENGINE. LITTLE DID I KNOW, THAT THE DAMAGE HAD ALREADY BEEN DONE. THE FAILED PART HAD LEAKED COOLANT INTO THE ENGINE. A WEEK AND…
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I PAID THE STATED AMOUNT TO REPLACE A COMPONENT REFERRED TO ME AS A "PLENNUM". THE SYMPTOM MY CAR WAS HAVING WAS, IT WAS OVERHEATING. IT IS MADE OF PLASTIC AND IS MOUNTED ON THE TOP OF THE 3800 ENGINE. LITTLE DID I KNOW, THAT THE DAMAGE HAD ALREADY BEEN DONE. THE FAILED PART HAD LEAKED COOLANT INTO THE ENGINE. A WEEK AND A HALF AFTER HAVING THE PLENNUM REPLACED, MY CAR BROKE DOWN. I HAVE BEEN ADVISED THAT THE LEAKING COOLANT INTO THE ENGINE FROM THE PLENNUM HAD CAUSED PREMATURE FAILURE OF A "ROD BEARING" IN THE ENGINE. THE COOLANT I'M TOLD ATE AWAY THE BEARING LUBRICANT. I AM TOLD MY ONLY OPTION AT THIS POINT IS AN ENGINE REPLACEMENT. I AM NOT A CAR MECHANIC BY ANY MEANS AND SUSPECTED NOTHING, AND WAS TOLD NOTHING. I UNDERSTAND AND ACCEPT THE FACT THAT MAN MADE PRODUCTS WEAR OUT AND NEED REPLACING. THIS TO ME SEEMS TO BE A POOR ENGINEERING FLAW THAT COSTS A LOT OF MONEY TO FIX. I DID NOT INCLUDE THE $2000.00 ENGINE REPLACEMENT IN MY TOTAL REPAIR COST ABOVE. THE PLASTIC PLENNUM PART, BY THE WAY, WAS REPLACED WITH ANOTHER PLASTIC PART. I TOLD THE DRIVER THAT WAS RETURNING ME HOME WHILE THE PLENNUM WAS BEING REPLACED, THAT I WAS INTENDING TO TRADE MY BONNEVILLE IN ON A MONTANA MINIVAN THIS SUMMER. HIS REPLY TO ME WAS THAT THEY ARE EXPERIENCING THE SAME PROBLEM WITH THE MONTANA, AS WELL AS OTHER VEHICLES WITH THE 3800 ENGINE. IT SEMS CLEAR TO ME THAT THERE IS OBVIOUSLY A PROBLEM HERE THAT NEEDS TO BE RECALLED.
NHTSA ODI #10069769
Mileage unknown · Oct 1, 2003
Engine And Engine CoolingFire
WHILE DRIVING AT NORMAL SPEED DRIVER BEGAN TO SEE SMOKE COMING FROM THE VEHICLE. DRIVER PROCEEDED TO DRIVE HOME, AND PARKED VEHICLE. A MECHANIC STATED THAT THERE WAS A WHOLE IN THE PLENUM THAT ALLOWED WATER TO LEAK AND WARP THE HEADS. *AK
NHTSA ODI #10042052
50,000 miles · Sep 15, 2003
Engine And Engine Cooling
THE VEHICLE STALLED ON SEVERAL OCCASIONS, THE VEHICLE WAS TAKEN TO THREE DIFFERENT DEALERS AND THEY ALL STATED THE COMPUTER SHOWED NO ERRORS. *JB *SCC *JB
NHTSA ODI #10032511
113,000 miles · Sep 2, 2003
Engine And Engine Cooling
A BLOCK FROM HOME OUR ENGINE SHUT DOWN. THE UPPER MANIFOLD HAD A HOLE IN IT DUE TO THE MANIFOLD BEING PLASTIC, AND CRYSTALIZING OVER A PERIOD OF TIME. IT COST US $729.00 TO GET IT FIXED. LUCKILY OUR ENGINE WASN'T HOT OR WE WOULD HAVE HAD MORE SERIOUS PROBLEMS.*AK
NHTSA ODI #10037097
99,548 miles · Jun 24, 2003
Engine And Engine Cooling
WHILE DRIVING A 100 MILES FROM HOME THE CAR OVERHEATED & HAD TO BE TOWED. WE FOUND THAT THE PROBLEM WAS DUE TO A HOLE IN THE AIR PLENUM IN THE UPPER INTAKE MANIFOLD. WE HAVE FOUND THAT THERE ARE OVER 20 SUCH CASES IN OUR SMALL COMMUNITY ALONE. ALL ON 3800 MOTORS IN PONTIAC'S. THIS IS A FOUR HUNDRED DOLLAR REPAIR BILL THAT OCC…
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WHILE DRIVING A 100 MILES FROM HOME THE CAR OVERHEATED & HAD TO BE TOWED. WE FOUND THAT THE PROBLEM WAS DUE TO A HOLE IN THE AIR PLENUM IN THE UPPER INTAKE MANIFOLD. WE HAVE FOUND THAT THERE ARE OVER 20 SUCH CASES IN OUR SMALL COMMUNITY ALONE. ALL ON 3800 MOTORS IN PONTIAC'S. THIS IS A FOUR HUNDRED DOLLAR REPAIR BILL THAT OCCURRED ONLY BECAUSE PONTIAC DECIDED TO USE PLASTIC IN THEIR PART WHICH IN TURN MELTED & CAUSED OUR MOTOR TO OVERHEAT. I HOPE THAT PONTIAC WILL RECALL THESE PLENUMS & REIMBURSE US FOR THE COST OF REPAIRING & TOWING OUR CAR. IF PONTIAC WOULD CALL THEIR DEALERS THEY WOULD FIND OUT JUST HOW MANY OF THESE PARTS HAVE MALFUNCTIONED. *JB
NHTSA ODI #10023674
94,000 miles · Apr 24, 2003
Engine And Engine Cooling
LOSS OF COOLANT. PLASTIC AIR INTAKE MOUNTED ON TOP OF INTAKE MANIFOLD FAILED LEAKING COOLANT UNDER PRESSURE INTO COMBUSTION CHAMBER. TALKED TO SEVERAL LICENSED TECHNICIANS IN THE AREA AND THEY STATE THAT THIS IS A COMMON PROBLEM. REQUIRES REPLACEMENT OF AIR INTAKE. $275 & LABOR. *NLM
NHTSA ODI #10016448
Mileage unknown · Jan 7, 2003
Electrical SystemEngine And Engine CoolingPower Train
NAR 1/29/2003. THE VEHICLE WAS DELIVERED TO THE CONSUMER WITH A BENT WATER PUMP AND A BENT WHEEL. THE ALTERNATOR, POWER STEERING PUMP, TRANSMISSION AND EGR VALVE WERE REPLACED. *JB
NHTSA ODI #10006051
NHTSA investigations
2EA02030 · Engine Compartment Fires
Opened Oct 22, 2002 · Closed Mar 9, 2004
Status: closed (inferred from source dates) · Fuel System, Gasoline; Fuel System, Gasoline:delivery; Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings
EA02-030 IS CLOSED WITH GMEA02-030 IS CLOSED WITH GM?S ACTIONS IN 03V-473 AND 04V-090 RECALLING APPROXIMATELY 529,000 MY 1998-99 C- AND H-BODY VEHICLES EQUIPPED WITH DEFECTIVE FUEL PRESSURE REGULATORS.THESE VEHICLES WERE EQUIPPED WITH PLASTIC INTAKE MANIFOLDS THAT ARE UNABLE TO CONTAIN PRESSURES THAT OCCUR IN SOME BACKFIRE EVENTS AND DEFECTIVE FUEL PRESSURE REGULATORS WITH LEAKING DIAPHRAGMS THAT CAN PROVIDE A SOURCE OF FUEL TO PRODUCE A COMBUSTIBLE AIR-FUEL MIXTURE IN THE MANIFOLD.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY ODI THAT NO SAFETY DEFECT EXISTS IN THE VEHICLES THAT ARE NOT INCLUDED IN GM?S RECALLS.ODI WILL CONTINUE TO MONITOR THE INCIDENCE OF MANIFOLD RUPTURES AND RELATED FIRES IN OTHER MY 1995-2002 GM PASSENGER CARS EQUIPPED WITH THE SUBJECT INTAKE MANIFOLD.FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Additional source detail variants (3)
Fuel System, Gasoline:delivery
EA02-030 IS CLOSED WITH GMEA02-030 IS CLOSED WITH GM?S ACTIONS IN 03V-473 AND 04V-090 RECALLING APPROXIMATELY 529,000 MY 1998-99 C- AND H-BODY VEHICLES EQUIPPED WITH DEFECTIVE FUEL PRESSURE REGULATORS.THESE VEHICLES WERE EQUIPPED WITH PLASTIC INTAKE MANIFOLDS THAT ARE UNABLE TO CONTAIN PRESSURES THAT OCCUR IN SOME BACKFIRE EVENTS AND DEFECTIVE FUEL PRESSURE REGULATORS WITH LEAKING DIAPHRAGMS THAT CAN PROVIDE A SOURCE OF FUEL TO PRODUCE A COMBUSTIBLE AIR-FUEL MIXTURE IN THE MANIFOLD.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY ODI THAT NO SAFETY DEFECT EXISTS IN THE VEHICLES THAT ARE NOT INCLUDED IN GM?S RECALLS.ODI WILL CONTINUE TO MONITOR THE INCIDENCE OF MANIFOLD RUPTURES AND RELATED FIRES IN OTHER MY 1995-2002 GM PASSENGER CARS EQUIPPED WITH THE SUBJECT INTAKE MANIFOLD.FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings
EA02-030 IS CLOSED WITH GMEA02-030 IS CLOSED WITH GM?S ACTIONS IN 03V-473 AND 04V-090 RECALLING APPROXIMATELY 529,000 MY 1998-99 C- AND H-BODY VEHICLES EQUIPPED WITH DEFECTIVE FUEL PRESSURE REGULATORS.THESE VEHICLES WERE EQUIPPED WITH PLASTIC INTAKE MANIFOLDS THAT ARE UNABLE TO CONTAIN PRESSURES THAT OCCUR IN SOME BACKFIRE EVENTS AND DEFECTIVE FUEL PRESSURE REGULATORS WITH LEAKING DIAPHRAGMS THAT CAN PROVIDE A SOURCE OF FUEL TO PRODUCE A COMBUSTIBLE AIR-FUEL MIXTURE IN THE MANIFOLD.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY ODI THAT NO SAFETY DEFECT EXISTS IN THE VEHICLES THAT ARE NOT INCLUDED IN GM?S RECALLS.ODI WILL CONTINUE TO MONITOR THE INCIDENCE OF MANIFOLD RUPTURES AND RELATED FIRES IN OTHER MY 1995-2002 GM PASSENGER CARS EQUIPPED WITH THE SUBJECT INTAKE MANIFOLD.FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Fuel System, Gasoline
EA02-030 IS CLOSED WITH GMEA02-030 IS CLOSED WITH GM?S ACTIONS IN 03V-473 AND 04V-090 RECALLING APPROXIMATELY 529,000 MY 1998-99 C- AND H-BODY VEHICLES EQUIPPED WITH DEFECTIVE FUEL PRESSURE REGULATORS.THESE VEHICLES WERE EQUIPPED WITH PLASTIC INTAKE MANIFOLDS THAT ARE UNABLE TO CONTAIN PRESSURES THAT OCCUR IN SOME BACKFIRE EVENTS AND DEFECTIVE FUEL PRESSURE REGULATORS WITH LEAKING DIAPHRAGMS THAT CAN PROVIDE A SOURCE OF FUEL TO PRODUCE A COMBUSTIBLE AIR-FUEL MIXTURE IN THE MANIFOLD.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY ODI THAT NO SAFETY DEFECT EXISTS IN THE VEHICLES THAT ARE NOT INCLUDED IN GM?S RECALLS.ODI WILL CONTINUE TO MONITOR THE INCIDENCE OF MANIFOLD RUPTURES AND RELATED FIRES IN OTHER MY 1995-2002 GM PASSENGER CARS EQUIPPED WITH THE SUBJECT INTAKE MANIFOLD.FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
PE02050 · Engine Compartment Fires
Opened Jun 13, 2002 · Closed Oct 22, 2002
Status: closed (inferred from source dates) · Engine And Engine Cooling
No summary supplied.