NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
277 reports67,109 miles · Aug 29, 2003
Electrical SystemEngine And Engine Cooling
THIS CAR HAS HAD VERY GOOD CARE/MAINTENANCE, HAS NOT BEEN DRIVEN HARD, AND HAS ONLY 67,000 MILES ON IT. WHILE DRIVING DOWN A CITY STREET, APPROXIMATELY 35 MPH, THE CAR BEGAN TO SPUTTER. I PULLED IN TO A PARKING LOT AND SHUT THE CAR OFF SO THAT I COULD LOOK AT THE SPARK PLUG WIRES. I HAD A SPARK PLUG WIRE LOOSE WHEN THIS HAPPENED…
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THIS CAR HAS HAD VERY GOOD CARE/MAINTENANCE, HAS NOT BEEN DRIVEN HARD, AND HAS ONLY 67,000 MILES ON IT. WHILE DRIVING DOWN A CITY STREET, APPROXIMATELY 35 MPH, THE CAR BEGAN TO SPUTTER. I PULLED IN TO A PARKING LOT AND SHUT THE CAR OFF SO THAT I COULD LOOK AT THE SPARK PLUG WIRES. I HAD A SPARK PLUG WIRE LOOSE WHEN THIS HAPPENED ONCE BEFORE. I HAD NO OVER TEMP, I HAD NORMAL OIL PRESSURE AND THERE WAS NO CHECK ENGINE LIGHT ILLUMINATED. I DID NOT FIND A NOTICEABLE PROBLEM, BUT I COULD NOT GET THE ENGINE TO START AGAIN. I HAD IT TOWED HOME. I CHANGED THE BATTERY, THE STARTER, AND FINALLY CHECKED TO SEE IF THE CRANKSHAFT WOULD TURN, WHICH IT WOULDN'T. I REMOVED THE SPARK PLUGS AND TRIED IT AGAIN. I GOT ANTIFREEZE FROM FOUR OF THE CYLINDERS! THIS WAS DETERMINED TO BE BECAUSE OF A FAILED INTAKE MANIFOLD GASKET.*AK
NHTSA ODI #10036858
Mileage unknown · Aug 27, 2003
Engine And Engine Cooling
CONSUMER CALLED COMPLAINING ABOUT ANTIFREEZE LEAKING INTO THE INTAKE MANIFOLD. MANUFACTURER AND DEALER WERE CONTACTED, AND STATED THAT THERE WAS A RECALL ON A DIFFERENT VEHICLES WITH THE SAME ENGINE BUT NOT ON THIS PARTICULAR ONE.*AK
NHTSA ODI #10037766
69,900 miles · Aug 15, 2003
Engine And Engine Cooling
THE CONSUMER WAS DRIVING 20 MPH AROUND A CORNER. WHEN THE CONSUMER ATTEMPTED TO ACCELERATE THE VEHICLE BEGAN TO BUCK, THE CHECK ENGINE LIGHT ILLUMINATED AND THE CAR SUDDENLY STALLED. THE DEALER DIAGNOSED THAT THE UPPER INTAKE MANIFOLD GASKET FAILED. *NLM THE PLENUM FAILED AND CAUSED COOLANT TO ENTER THE ENGINE. THE ENGINE …
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THE CONSUMER WAS DRIVING 20 MPH AROUND A CORNER. WHEN THE CONSUMER ATTEMPTED TO ACCELERATE THE VEHICLE BEGAN TO BUCK, THE CHECK ENGINE LIGHT ILLUMINATED AND THE CAR SUDDENLY STALLED. THE DEALER DIAGNOSED THAT THE UPPER INTAKE MANIFOLD GASKET FAILED. *NLM THE PLENUM FAILED AND CAUSED COOLANT TO ENTER THE ENGINE. THE ENGINE HYDRO-LOCKED DUE TO A FAULTY GASKET THAT GM HAD KNOWN ABOUT. THE ENGINE, STARTER AND PLENUM WAS REPLACED. *SCC *JB
NHTSA ODI #10020469
66,000 miles · Aug 14, 2003
Engine And Engine Cooling
COOLANT WAS SUCKED INTO THE CYLINDERS THROUGH TWO UNKNOWN HOLES IN THE INTAKE MANIFOLD SYSTEM. ENGINE HAD 66,000 MILES. RESULTED IN TOTAL BLOW-OUT OF ENGINE AND REPLACEMENT WAS NECESSARY AT A REPAIR COST OF CLOSE TO $3,000. ACCORDING TO SERVICE TECHNICIAN THIS ENGINE HAS A HISTORY OF THESE PROBLEMS AND GM NEEDS TO RECTIFY THE…
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COOLANT WAS SUCKED INTO THE CYLINDERS THROUGH TWO UNKNOWN HOLES IN THE INTAKE MANIFOLD SYSTEM. ENGINE HAD 66,000 MILES. RESULTED IN TOTAL BLOW-OUT OF ENGINE AND REPLACEMENT WAS NECESSARY AT A REPAIR COST OF CLOSE TO $3,000. ACCORDING TO SERVICE TECHNICIAN THIS ENGINE HAS A HISTORY OF THESE PROBLEMS AND GM NEEDS TO RECTIFY THE FAULTY PLASTIC MANIFOLDS AND GASKETS. *AK
NHTSA ODI #10032829
Mileage unknown · Aug 11, 2003
Engine And Engine Cooling
WHILE TRAVELING ON THE HIGHWAY AND WITHOUT PRIOR WARNING COOLANT WAS LEAKING INTO THE ENGINE, CAUSING VEHICLE TO OVERHEAT. *AK
NHTSA ODI #10033640
35,000 miles · Aug 8, 2003
Electrical System
1998 PONTIAC BONNEVILLE - ON NUMREOUS OCCASIONS THE VEHICLE HAS STALLED FOR NO APPARENT REASON. SOMETIMES WHILE MOVING, OTHER TIMES AT STOP SIGNS OR STOPLIGHTS. WARM AND COLD WEATHER. WARM AND COLD ENGINE. THE DEALER HAS HAD IT ON THE DIAGNOSTIC MACHNIES AND EVEN HOOKED UP A RECORDER TO RECORD CONDITIONS WHEN THE STALLS OCCU…
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1998 PONTIAC BONNEVILLE - ON NUMREOUS OCCASIONS THE VEHICLE HAS STALLED FOR NO APPARENT REASON. SOMETIMES WHILE MOVING, OTHER TIMES AT STOP SIGNS OR STOPLIGHTS. WARM AND COLD WEATHER. WARM AND COLD ENGINE. THE DEALER HAS HAD IT ON THE DIAGNOSTIC MACHNIES AND EVEN HOOKED UP A RECORDER TO RECORD CONDITIONS WHEN THE STALLS OCCUR, BUT STILL NO ANSWERS.
NHTSA ODI #10031071
65,000 miles · Aug 2, 2003
Power TrainVehicle Speed ControlCrash
1998 PONTAIC BONNEVILLE SE, STANDARD V6 ENGINE, WHILE STOPPED WITH THE BRAKE ENGAGED THE ENGINE WILL SURGE AND LEAP FORWARD . CAR ENGINE WILL QUIT WHILE DRIVING, CAUSING LOSS OF ANTI-LOCK BRAKES. TRANSMISSION SOMETIMES SHIFTS UP AND DOWN WITHOUT ANY REASON, EVEN AT SPEED CAUSING CONTROL PROBLEMS. SUPOSEDLY RELATED TO THE DESIGN …
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1998 PONTAIC BONNEVILLE SE, STANDARD V6 ENGINE, WHILE STOPPED WITH THE BRAKE ENGAGED THE ENGINE WILL SURGE AND LEAP FORWARD . CAR ENGINE WILL QUIT WHILE DRIVING, CAUSING LOSS OF ANTI-LOCK BRAKES. TRANSMISSION SOMETIMES SHIFTS UP AND DOWN WITHOUT ANY REASON, EVEN AT SPEED CAUSING CONTROL PROBLEMS. SUPOSEDLY RELATED TO THE DESIGN OF THE INTAKE MANIFOLD ( PLASTIC CRACKS CAUSING VACUM PROBLEMS AND SOMETINES LOSS OF WATER). ALSO EXTERIOR PAINT STARTED TO PEAL OFF AT 70.000 MILES.*AK
NHTSA ODI #10030633
Mileage unknown · Jul 30, 2003
Visibility
CONSUMER NOTICED WHILE USING WINDSHIELD WIPERS AND WITHOUT ANY INDICATION WIPERS STARTED SMOKING, AND STOPPED WORKING. *AK
NHTSA ODI #10031587
Mileage unknown · Jul 23, 2003
Engine And Engine Cooling
I PURCHASED VEHICLE ON 02/17/03. IN MAY 2003, WITHOUT ANY WARNING, I WAS REPLACING A MOTOR. ONCE AGAIN, ON JULY 19, 2003 I AM REPLACING YET ANOTHER MOTOR.*AK
NHTSA ODI #10028958
Mileage unknown · Jul 14, 2003
Engine And Engine Cooling
CONSUMER CALLED COMPLAINING ABOUT HAVING GASKET PROBLEMS. GASKETS HAVE BEEN REPLACED TWICE, AND HE WAS CONCERNED. MANUFACTURER WAS NOT CONTATED AT THE TIME OF THIS CALL. *AK
NHTSA ODI #10027244
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.
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