NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
194 reportsClear category filter64,500 miles · Mar 31, 2004
Engine And Engine CoolingFuel System, Gasoline
REPEATED STALLING IN TRAFFIC. TYPICALLY OCCURRED APPROXIMATELY TWO MINUTES AFTER START-UP. DURING ONE COLD START THE ENGINE MISS-FIRED AND BACK PRESSURE POPPED OFF THE BRAKE VACUUM LINE, CAUSING LOSS OF BRAKES. WAS DIAGNOSED FIRST TIME AS MASS AIR FLOW SENSOR. PROBLEM RECURRED, DIAGNOSED AS FUEL PRESSURE REGULATOR. SHORTLY A…
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REPEATED STALLING IN TRAFFIC. TYPICALLY OCCURRED APPROXIMATELY TWO MINUTES AFTER START-UP. DURING ONE COLD START THE ENGINE MISS-FIRED AND BACK PRESSURE POPPED OFF THE BRAKE VACUUM LINE, CAUSING LOSS OF BRAKES. WAS DIAGNOSED FIRST TIME AS MASS AIR FLOW SENSOR. PROBLEM RECURRED, DIAGNOSED AS FUEL PRESSURE REGULATOR. SHORTLY AFTER, FLOODING AND SPARKPLUG FOULING OCCURRED DUE TO DAMAGED INTAKE MANIFOLD LEAKING COOLANT INTO CYLINDERS. WHILE TWO OF THE COMPONENTS ARE THE SAME AS RECALL CAMPAIGN 04V090000, AND GM RECALL 03054B, GM SAYS THIS VIN [XXX] IS NOT INCLUDED. *AK UPDATED 07/30/2012 *JS INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #10064248
70,000 miles · Mar 31, 2004
Engine And Engine Cooling
ENGINE HAD 70,000 MILES WHEN SUDDENLY SEIZED WITH NO WARNING. REPAIR SAID INTAKE MANIFOLD HAD WARPED CAUSING ANTIFREEZE TO SPILL INTO ENGINE. ENGINE AND STARTER HAD TO BE REPLACED. REPAIR CENTER SAID IT IS A VERY COMMON PROBLEM. REPLACEMENT ENGINE HAD SAME THING HAPPENING AND A KIT IS AVAILABLE FOR REPLACEMENT OF THIS PROBLE…
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ENGINE HAD 70,000 MILES WHEN SUDDENLY SEIZED WITH NO WARNING. REPAIR SAID INTAKE MANIFOLD HAD WARPED CAUSING ANTIFREEZE TO SPILL INTO ENGINE. ENGINE AND STARTER HAD TO BE REPLACED. REPAIR CENTER SAID IT IS A VERY COMMON PROBLEM. REPLACEMENT ENGINE HAD SAME THING HAPPENING AND A KIT IS AVAILABLE FOR REPLACEMENT OF THIS PROBLEM-PURCHASED KIT FOR REPLACEMENT ENGINE. TOTAL REPLACEMENT COSTS---$3,223.06. I SEE IN BROWSING THE COMPLAINT PAGES THAT THIS IS A VERY COMMON PROBLEM. ITS TIME THAT GM MAKES THINGS RIGHT FOR THE CONSUMER.*AK
NHTSA ODI #10064247
70,452 miles · Mar 17, 2004
Engine And Engine Cooling
ENGINE IS IDLING AND RUNNING ROUGH DUE TO ANTI-FREEZE GETTING INTO THE CYLINDER. THIS COULD LOCKED UP THE ENGINE. *AK THE CONSUMER IT WAS A COMMON KNOWN ISSUE WITH THE ENGINE MANIFOLD WHICH WAS MADE OF PLASTIC AND WARPED WHICH ALLOWED COOLANT TO LEAK INTO THE CYLINDER. *JB
NHTSA ODI #10059522
97,070 miles · Mar 3, 2004
Engine And Engine Cooling
CATASTROPHIC ENGINE FAILURE WHILE TRAVELING ON A BRIDGE AT APPRX 15 - 20 MPH. NO WARNINGS LIGHTS OR GAUGE CONCERNS UNTIL MOMENT OF FAILURE. ENGINE IDLE BECAME EXCEPTIONALLY ROUGH. CAUSE WAS A GASKET FAILURE ALLOWING DEX-COOL TO ENTER ENGINE AND DESTROYED IT.*AK
NHTSA ODI #10060265
61,134 miles · Mar 2, 2004
Engine And Engine Cooling
1998 PONTIAC BONNEVILLE PLENUM WARPED AND LEAKED ANTI-FREEZE INTO COMBUSTION CYLINDERS. VEHICLE WAS NOT ABLE TO BE STARTED AND HAD TO BE TOWED TO DEALER. RESULTED IN OVER $900.00 CHARGES OF WHICH $317.64 WAS NOT COVERED BY EXTENDED WARRANTY. *AK
NHTSA ODI #10060168
60,000 miles · Feb 21, 2004
Engine And Engine Cooling
PLASTIC INTAKE MANIFOLD FAILURE ENGINE LOCKED UP AS DRIVING THE VEHICLE. NOBODY INJURED, BUT DEFINITELY A SAFETY ISSUE. 1998 PONTIAC BONNEVILLE 2HX52K9W4202853. *JB
NHTSA ODI #10058627
54,000 miles · Feb 14, 2004
Engine And Engine CoolingFire
TRIED TO START CAR 1998 PONTIAC BONNEVILLE WITH 54,000 MILES, IT BACKFIRED AND COUGHT FIRE. IT IS TOTALLED. I READ ON THE INTERNET THAT THERE WAS A PROBLEM WITH THE PLASTIC INTAKE MANIFOLD, BUT I HAVE NEVER BEEN ADVISED. MY CAR WHICH WAS LIKE NEW IS GONE.*AK
NHTSA ODI #10058157
Mileage unknown · Feb 7, 2004
Engine And Engine Cooling
WHILE MY 1998 PONTIAC BONEVILLE WAS BEING AUTO STARTED IN -15 F TEMPERTURES THERE WAS AN IMMEDIATE SUDDEN LOUD REPORT, MUCH LIKE A BACKFIRE, I LOOKED OUTSIDE AND THE CAR APPEARED TO BE FINE. IT TRIED TO AUTOSTART ITSELF 2 MORE TIMES IN SUCESSION. BOTH TIMES IT STARTED RATHER ROUGHLY AND SHUT ITSELF OFF IMMEDIATLY AGAIN. I…
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WHILE MY 1998 PONTIAC BONEVILLE WAS BEING AUTO STARTED IN -15 F TEMPERTURES THERE WAS AN IMMEDIATE SUDDEN LOUD REPORT, MUCH LIKE A BACKFIRE, I LOOKED OUTSIDE AND THE CAR APPEARED TO BE FINE. IT TRIED TO AUTOSTART ITSELF 2 MORE TIMES IN SUCESSION. BOTH TIMES IT STARTED RATHER ROUGHLY AND SHUT ITSELF OFF IMMEDIATLY AGAIN. I QUICKLY WENT OUTSIDE AND UPON OPENING THE HOOD IT WAS SEEN THAT THE INTAKE MANIFOLD WAS BROKEN INTO SEVERAL PARTS.*AK
NHTSA ODI #10056742
Mileage unknown · Feb 6, 2004
Engine And Engine Cooling
THE UPPER ENGINE COVER AND PLENUM BROKE. THE FUEL PRESSURE REGULATOR LEAKED ONTO THE INTAKE AND CAUSED A BACKFIRE. THE PRESSURE REGULATOR WAS REPLACED, AND THE LOWER AND UPPER INTAKE WAS RESEALED. *LA THE VEHICLE WAS RESTARTED BUT STALLED. (THE LOUD NOISE WAS HEARD AT START UP) *SC *JB
NHTSA ODI #10057902
48,000 miles · Feb 4, 2004
Engine And Engine Cooling
THE FUEL PRESSURE REGULATOR LEAKED GASOLINE; ALLOWING FUEL TO ENTER THE INTAKE MANIFOLD THROUGH A VACUUM LINE. A SPARK IGNITED THE EXCESS FUEL CAUSING AN EXPLOSION AND RUPTURING THE MANIFOLD. THE BLAST HIT THE CAR IN FRONT OF ME SO HARD THEY THOUGHT THEY HAD BEEN REAR-ENDED. SMOKE BELLOWED OUT FROM UNDER THE HOOD, BUT LUCKI…
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THE FUEL PRESSURE REGULATOR LEAKED GASOLINE; ALLOWING FUEL TO ENTER THE INTAKE MANIFOLD THROUGH A VACUUM LINE. A SPARK IGNITED THE EXCESS FUEL CAUSING AN EXPLOSION AND RUPTURING THE MANIFOLD. THE BLAST HIT THE CAR IN FRONT OF ME SO HARD THEY THOUGHT THEY HAD BEEN REAR-ENDED. SMOKE BELLOWED OUT FROM UNDER THE HOOD, BUT LUCKILY IT DIDN'T BURN. IT HAPPENED AS I WAS ENTERING AN INTERSECTION AND WE NEARLY MISSED BEING BROADSIDED. THE CAR LOST BOTH POWER STEERING AND BRAKES WHEN IT EXPLODED AND WAS VERY DIFFICULT TO CONTROL. ABOUT 2 WEEKS BEFORE THIS IT HAD BEEN TAKEN IN FOR REPAIRS BECAUSE IT WAS STALLING OUT, DIFFICULT TO START AND THE POWER STEERING AND BRAKES HAD BEEN FAILING. A NEW VACUUM HOSE WAS INSTALLED. IT HAD BEEN REPAIRED THE YEAR BEFORE BECAUSE IT LEAKED ANTIFREEZE INTO THE ENGINE, DAMAGING IT EXTENSIVELY. IT IS THE SECOND BONNEVILLE I OWN THAT HAS DONE THIS. IT IS THE THIRD DAMAGED ENGINE THAT FITS THE DESCRIPTION OF THE BUICK RECALL- GM #03054. GM VEHICLES EQUIPED WITH 3800 V6 ENGINES. *AK
NHTSA ODI #10056533
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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