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2002 Pontiac Grand Prix

Owner reports · Recalls · Investigations

More warning signs than most Grand Prix years

Owner complaints for the 2002 Pontiac Grand Prix are substantially higher than the model-year median of 88.

About this comparison →

When problems were reported

Mileage at the reported incident

242 reports with mileage · 88 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Engine. Review the 86 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 62 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 56 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

19 crash reports96 fire reports12 injury reports

Power Train complaints

18 reports
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160,508 miles · Jul 22, 2013
Power Train

MY VEHICLE IS EXPERIENCING TSB: 06-07-30-023D 4T65E: TRANSMISSION 1-2 SHIFT SHUDDER AT LIGHT TO MODERATE ACCELERATION. I CALLED PONTIAC RECALL CENTER GAVE MY VIN AND WAS TOLD IT WAS NOT COVERED. EVENTHOUGH I GOT THIS RECALL AFTER TAKING MY CAR TO A NJ INSPECTION CENTER. *TR

NHTSA ODI #10526091

95,000 miles · Oct 15, 2008
Power Train

TL*THE CONTACT OWNS A 2002 PONTIAC GRAND PRIX. THE CONTACT NOTICED THAT THE STEERING COLUMN WOULD NOT LOCK PROPERLY AND THE FLOOR SHIFTER WOULD NOT REMAIN LOCKED IN ITS PROPER GEAR. HE TOOK THE VEHICLE TO THE DEALER AND THEY STATED THAT HE WOULD HAVE TO REPLACE THE NEUTRAL SAFETY SWITCH AT THE COST OF OVER $400. THE VEHICLE H…

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TL*THE CONTACT OWNS A 2002 PONTIAC GRAND PRIX. THE CONTACT NOTICED THAT THE STEERING COLUMN WOULD NOT LOCK PROPERLY AND THE FLOOR SHIFTER WOULD NOT REMAIN LOCKED IN ITS PROPER GEAR. HE TOOK THE VEHICLE TO THE DEALER AND THEY STATED THAT HE WOULD HAVE TO REPLACE THE NEUTRAL SAFETY SWITCH AT THE COST OF OVER $400. THE VEHICLE HAS NOT BEEN REPAIRED. THE FAILURE MILEAGE WAS 95,000 AND CURRENT MILEAGE WAS 118,000.

NHTSA ODI #10245563

84,556 miles · Aug 19, 2008
Power Train

TL*THE CONTACT OWNS A 2002 PONTIAC GRAND PRIX. WHILE DRIVING 40 MPH, THE VEHICLE SLOWED DOWN AND WOULD NOT GO ABOVE 40 MPH. A MECHANIC INSPECTED THE VEHICLE AND IT WOULD NOT SHIFT. THE TORQUE CONVERTER WAS DIAGNOSED AS THE CAUSE OF THE FAILURE AND WAS REPAIRED AT THE COST OF $2,217.97. THE CONTACT FILED A COMPLAINT WITH PONT…

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TL*THE CONTACT OWNS A 2002 PONTIAC GRAND PRIX. WHILE DRIVING 40 MPH, THE VEHICLE SLOWED DOWN AND WOULD NOT GO ABOVE 40 MPH. A MECHANIC INSPECTED THE VEHICLE AND IT WOULD NOT SHIFT. THE TORQUE CONVERTER WAS DIAGNOSED AS THE CAUSE OF THE FAILURE AND WAS REPAIRED AT THE COST OF $2,217.97. THE CONTACT FILED A COMPLAINT WITH PONTIAC (CASE NUMBER 71-655316876). THE CURRENT MILEAGE WAS 85,300 AND FAILURE MILEAGE WAS 84,556. UPDATED 02-18-09 UPDATED 02/18/09. *JB

NHTSA ODI #10238849

101,000 miles · May 19, 2008
Power TrainCrash

TL*THE CONTACT OWNS A 2002 PONTIAC GRAND PRIX. THE VEHICLE WAS IN THE PARK POSITION WITH THE ENGINE TURNED ON. WHILE THE CONTACT'S SON WAS MOVING FROM THE FRONT TO THE REAR SEAT, HIS FOOT STRUCK THE SHIFTER. THE GEAR SHIFTED INTO REVERSE AND THE VEHICLE MOVED IN A CIRCULAR MANNER BEFORE ROLLING BACKWARDS INTO A LIGHT POLE. T…

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TL*THE CONTACT OWNS A 2002 PONTIAC GRAND PRIX. THE VEHICLE WAS IN THE PARK POSITION WITH THE ENGINE TURNED ON. WHILE THE CONTACT'S SON WAS MOVING FROM THE FRONT TO THE REAR SEAT, HIS FOOT STRUCK THE SHIFTER. THE GEAR SHIFTED INTO REVERSE AND THE VEHICLE MOVED IN A CIRCULAR MANNER BEFORE ROLLING BACKWARDS INTO A LIGHT POLE. THE FRONT BUMPER AND PASSENGER SIDE HEADLIGHT WERE DAMAGED. THE APPROXIMATE SPEED AT THE TIME OF THE CRASH WAS 10 MPH. THE VEHICLE HAS NOT YET BEEN INSPECTED BY A MECHANIC OR DEALER. A POLICE REPORT WAS FILED. THE FAILURE AND CURRENT MILEAGES WERE 101,000.

NHTSA ODI #10228176

Mileage unknown · Apr 25, 2008
Power Train

AFTER THE PURCHASE OF MY GRAND PRIX FROM MAC HAIK IN TEMPLE TEXAS THE TRANSMISSION STARTED TO HAVE SOME PROBLEMS. THE CAR WAS RETURNED TO MAC HAIK WHERE THE TRANSMISSION WAS REPAIRED OR REPLACED. AFTER ONLY 3 YEARS AND HAVING ONLY LESS THAN 1,000.00 LEFT TO PAY THE TRANSMISSION IS GOING OUT AGAIN! NO ACCIDENT OCCURRED I JUST HAV…

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AFTER THE PURCHASE OF MY GRAND PRIX FROM MAC HAIK IN TEMPLE TEXAS THE TRANSMISSION STARTED TO HAVE SOME PROBLEMS. THE CAR WAS RETURNED TO MAC HAIK WHERE THE TRANSMISSION WAS REPAIRED OR REPLACED. AFTER ONLY 3 YEARS AND HAVING ONLY LESS THAN 1,000.00 LEFT TO PAY THE TRANSMISSION IS GOING OUT AGAIN! NO ACCIDENT OCCURRED I JUST HAVE HAD ALOT OF PROBLEMS WITH THE VEHICLE AND AM FRUSTRATED WITH THE TRANSMISSION PROBLEM FOR THE 2ND TIME. *TR

NHTSA ODI #10225706

150,000 miles · Jan 9, 2008
Power Train

TRANSMISSION SLIPPED INTO REVERSE FROM DRIVE WHILE GOING 40-50 MPH ON THE HIGHWAY. IT DID THIS ON ITS OWN. LOST POWER AND BARELY MADE IT TO THE SIDE OF THE ROAD. AFTER STOPPING I WAS ABLE TO SHUT THE CAR OFF AND THEN RESTART IT. THE CAR TOOK OFF IN DRIVE AND HAS BEEN FINE SO FAR. I WAS JUST LUCKY THAT THE WAS ENOUGH MOVEMENT FRO…

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TRANSMISSION SLIPPED INTO REVERSE FROM DRIVE WHILE GOING 40-50 MPH ON THE HIGHWAY. IT DID THIS ON ITS OWN. LOST POWER AND BARELY MADE IT TO THE SIDE OF THE ROAD. AFTER STOPPING I WAS ABLE TO SHUT THE CAR OFF AND THEN RESTART IT. THE CAR TOOK OFF IN DRIVE AND HAS BEEN FINE SO FAR. I WAS JUST LUCKY THAT THE WAS ENOUGH MOVEMENT FROM THE CAR MASS TO GET IT TO THE SIDE OF THE ROAD. *TR

NHTSA ODI #10214303

112,000 miles · Aug 12, 2007
Power TrainSuspension

DEALERSHIP FOUND PASSENGER SIDE FRONT WHEEL BEARING FAILURE. DRIVER SIDE FRONT WHEEL BEARING AT MECHANICAL WEAR LIMIT. BOTH WERE REPLACED, AS WELL AS TRANSMISSION MAIN SEALS FROM AGE/WEAR/LEAKAGE AND FRONT PASSENGER SIDE LOWER BALL JOINT. ONE MONTH PRIOR TO THIS REPAIR, THE VEHICLE TRANSMISSION SHUT DOWN WITHOUT WARNING AND NO E…

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DEALERSHIP FOUND PASSENGER SIDE FRONT WHEEL BEARING FAILURE. DRIVER SIDE FRONT WHEEL BEARING AT MECHANICAL WEAR LIMIT. BOTH WERE REPLACED, AS WELL AS TRANSMISSION MAIN SEALS FROM AGE/WEAR/LEAKAGE AND FRONT PASSENGER SIDE LOWER BALL JOINT. ONE MONTH PRIOR TO THIS REPAIR, THE VEHICLE TRANSMISSION SHUT DOWN WITHOUT WARNING AND NO ELECTRICAL WARNING OR LIGHTS WHILE BEING DRIVEN. BECAUSE RELATED OTHER PARTS WERE REPAIRED PREVIOSLY AND REPORTED DEFECTIVE VIA THIS SYSTEM ON ODI ID 10107847 AND 10148428 AND DURING THIS REPAIR REPORTED REPAIR TO PONTIAC, THE OTHER ASSOCIATED PARTS WERE IN SPECIFICATION. ONE LOWER PASSENGER SIDE BALL JOINT WAS AT THE MECHANICAL LIMIT DUE TO BAD LOCAL ROADS ON THE PASSENGER SIDE EDGE OF ROAD/POTHOLES AND PUBLIC UTILITY ACCESS PATCHES. WORN HUBS (FOR THE SECOND TIME HERE, LISTEN UP) ARE AVAILABLE FOR INSPECTION IF NEEDED. BOTH TIMES THIS OCCURRED, WE NOTICED THE FAILURES EITHER AUDIBLY (HUMMING) OR DURING STATE INSPECTION, OR BOTH, AND IN ALL CASES, THE REPAIR CONDITIONS WERE SET BY THE DEALERSHIP DURING THE INSPECTION PHASE. AT NO TIME DURING THE INSPECTION WERE APOLIGIES OFFERED, OR BETTER PARTS ENGINEERED, TO PREVENT THIS FROM RE-OCCURRING. JUST TOLD THAT THIS WAS A COMMON PROBLEM ON THIS VEHICLE, GOOD THING WE CAUGHT IT BEFORE WE CAUSED AN ACCIDENT (WE?) AND WE CANNOT OFFER A BETTER PART TO FIX THIS PROBLEM PERMANENTLY. THEY SHOULD BE HELD ACCOUNTABLE FOR THE MATERIALS USED TO PRODUCE AND INVESTIGATE MANUFACTURED ITEMS FOR COMPLIANCE WITH MATERIAL(S) ENGINEERING AND SPECIFICATION, AS WELL AS WEAR TESTING DATA THAT MAY HAVE BEEN IMPROPERLY REPORTED TO PRESENT A FAVORABLE OUTCOME OF TEST FAILURE ANAYLSIS. *JB

NHTSA ODI #10199344

75,000 miles · Mar 27, 2007
Engine And Engine CoolingEquipmentFuel System, Gasoline

MAJOR WINDOW FAILURE, ONLY ONE WINDOW WORKS, AND TOO EXPENSIVE TO FIX. MY CAR HAS 70,000 MILES AND I HAVE HAD FUEL PUMP FAILURE, TOTAL RADIATOR FAILURE, AND TWO HEAT EXCHANGER FAILURES RESULTED IN RADIATOR FLUID ALL OVER PASSENGER SIDE FLOOR DUE TOO CHEAP CRIMPS ON HEAT EXCHANGER WHICH REQUIRES A HUGH DASH DISMANTLE TO FIX, W…

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MAJOR WINDOW FAILURE, ONLY ONE WINDOW WORKS, AND TOO EXPENSIVE TO FIX. MY CAR HAS 70,000 MILES AND I HAVE HAD FUEL PUMP FAILURE, TOTAL RADIATOR FAILURE, AND TWO HEAT EXCHANGER FAILURES RESULTED IN RADIATOR FLUID ALL OVER PASSENGER SIDE FLOOR DUE TOO CHEAP CRIMPS ON HEAT EXCHANGER WHICH REQUIRES A HUGH DASH DISMANTLE TO FIX, WINDOW FAILURE, DASH HEAT AND A/C CONTROL FAILURE. THE CAR GETS DRIVEN 11 MILES A DAY TO WORK AND BACK AND WE HAVE PUT $1000'S INTO THIS PIECE OF CRAP. DEALER AND MANUFACTURER COULD CARE LESS AND WANT THIS WEBSITE REMOVED. NO ONE IS WILLING TO DO A THING. WILL BE SWITCHING BRANDS ASAP TO DODGE OR CHRYSLER. *JB

NHTSA ODI #10186252

60,902 miles · Mar 7, 2007
Engine And Engine CoolingPower Train

TL* - THE CONTACT CALLED REGARDING A 2002 POINTAC GRAND PRIX. THE CONTACT STATED HE TOOK THE VEHICLE TO DEALER FOR A ROUTINE OIL CHANGE AND WAS ADVISED BY THE REPAIR SHOP THAT THERE WAS A GASKET LEAK. THE GASKET WAS REPLACED. THE FAILURE MILEAGE WAS 60,902. THE CONTACT STATED THAT HE BELIEVED THE ANTIFREEZE CAUSED THE GASKE…

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TL* - THE CONTACT CALLED REGARDING A 2002 POINTAC GRAND PRIX. THE CONTACT STATED HE TOOK THE VEHICLE TO DEALER FOR A ROUTINE OIL CHANGE AND WAS ADVISED BY THE REPAIR SHOP THAT THERE WAS A GASKET LEAK. THE GASKET WAS REPLACED. THE FAILURE MILEAGE WAS 60,902. THE CONTACT STATED THAT HE BELIEVED THE ANTIFREEZE CAUSED THE GASKET TO BE REPLACED THE CURRENT MILEAGE WAS 60,951.*AK UPDATED 04/12/07. *JB

NHTSA ODI #10184403

Mileage unknown · Nov 12, 2006
Power Train

HARD SHIFTING IN AUTOMATIC TRANSMISSION. WAS IDENTIFIED IN JUNE 2005 AS A FAULTY PRESSURE CONTROL SOLENOID AND WAS FIXED. THE SAME PROBLEM HAS STARTED AGAIN IN OCTOBER OF 2006. *JB

NHTSA ODI #10173243

Official recalls

3

15V701000 · Engine And Engine Cooling:engine; Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe

Oct 26, 2015

General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala, and 1998-2004 Chevrolet Monte Carlo vehicles. The affected vehicles were previously repaired under recalls 08V-118, 09V-116, and 15V-201 to address the possibility that engine oil may drip onto the hot exhaust manifold.

Consequence & remedy

Consequence: Engine oil that drips onto the hot surface of the exhaust manifold may result in a fire.

Remedy: The remedy applied under recalls 08V-118, 09V-116, and 15V-201 did not adequately remove the safety risk. Under the improved remedy, dealers will replace the engine’s front valve cover and gasket. Vehicles that are covered by recalls 08V-118, 09V-116, or 15V-201 that have not yet received the original remedy will instead receive the improved remedy under the original recall number. The recall began on February 19, 2016. Owners may contact Chevrolet customer service at 1-800-222-1020, Buick customer service at 1-800-521-7300, Oldsmobile customer service at 1-800-442-6537 and Pontiac customer service at 1-800-458-8006. GM's number for this recall is 15757. Note: Until the improved remedy has been applied, owners are advised to park their vehicle outside since the fire risk exists even when the vehicle is unattended.

Additional source detail variants (2)

Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe

General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala, and 1998-2004 Chevrolet Monte Carlo vehicles. The affected vehicles were previously repaired under recalls 08V-118, 09V-116, and 15V-201 to address the possibility that engine oil may drip onto the hot exhaust manifold.

Consequence: Engine oil that drips onto the hot surface of the exhaust manifold may result in a fire.

Remedy: The remedy applied under recalls 08V-118, 09V-116, and 15V-201 did not adequately remove the safety risk. Under the improved remedy, dealers will replace the engine’s front valve cover and gasket. Vehicles that are covered by recalls 08V-118, 09V-116, or 15V-201 that have not yet received the original remedy will instead receive the improved remedy under the original recall number. The recall began on February 19, 2016. Owners may contact Chevrolet customer service at 1-800-222-1020, Buick customer service at 1-800-521-7300, Oldsmobile customer service at 1-800-442-6537 and Pontiac customer service at 1-800-458-8006. GM's number for this recall is 15757. Note: Until the improved remedy has been applied, owners are advised to park their vehicle outside since the fire risk exists even when the vehicle is unattended.

Engine And Engine Cooling:engine

General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala, and 1998-2004 Chevrolet Monte Carlo vehicles. The affected vehicles were previously repaired under recalls 08V-118, 09V-116, and 15V-201 to address the possibility that engine oil may drip onto the hot exhaust manifold.

Consequence: Engine oil that drips onto the hot surface of the exhaust manifold may result in a fire.

Remedy: The remedy applied under recalls 08V-118, 09V-116, and 15V-201 did not adequately remove the safety risk. Under the improved remedy, dealers will replace the engine’s front valve cover and gasket. Vehicles that are covered by recalls 08V-118, 09V-116, or 15V-201 that have not yet received the original remedy will instead receive the improved remedy under the original recall number. The recall began on February 19, 2016. Owners may contact Chevrolet customer service at 1-800-222-1020, Buick customer service at 1-800-521-7300, Oldsmobile customer service at 1-800-442-6537 and Pontiac customer service at 1-800-458-8006. GM's number for this recall is 15757. Note: Until the improved remedy has been applied, owners are advised to park their vehicle outside since the fire risk exists even when the vehicle is unattended.

09V116000 · Engine And Engine Cooling

Apr 8, 2009

GENERAL MOTORS IS RECALLING 1,497,516 MY 1997-2003 BUICK REGAL, MY 1998-2003 CHEVROLET LUMINA, MONTE CARLO AND IMPALA, MY 1998-1999 OLDSMOBILE INTRIGUE, MY 1997-2003 PONTIAC GRAND PRIX VEHICLES EQUIPPED WITH A 3.8L V6 NATURALLY ASPIRATED ENGINE. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH DROPS OF ENGINE OIL MAY BE DEPOSITED ON THE EXHAUST MANIFOLD THROUGH HARD BRAKING.

Consequence & remedy

Consequence: IF THE MANIFOLD IS HOT ENOUGH AND THE OIL RUNS BELOW THE HEAT SHIELD, IT MAY IGNITE INTO A SMALL FLAME AND MAY SPREAD TO THE PLASTIC SPARK PLUG WIRE CHANNEL AND BEYOND INCREASING THE RISK OF AN ENGINE COMPARTMENT FIRE.

Remedy: DEALERS WILL REPLACE THE ENGINE’S FRONT VALVE COVER AND FRONT-VALVE-COVER GASKET WITH NEW PARTS OF AN IMPROVED DESIGN AND REMOVE THE ENGINE’S PLASTIC COVER AND PLASTIC OIL-FILL-TUBE EXTENSION, FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING MAY 2016. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, OLDSMOBILE AT 1-800-630-6537, AND PONTIAC AT 1-800-620-7668 OR HTTP://WWW.PONTIAC.COM OR HTTP:WWW.GMOWNERCENTER.COM.

08V118000 · Engine And Engine Cooling

Mar 12, 2008

GM IS RECALLING 207,542 MY 1997-2003 BUICK REGAL AND PONTIAC GRAND PRIX VEHICLES EQUIPPED WITH A 3.8L SUPERCHARGED V-6 ENGINE. THESE VEHICLES HAVE HIGHER FRONT ROCKER COVER GASKET TEMPERATURES, CREATING THE POTENTIAL FOR EARLIER DEGRADATION OF THE FRONT ROCKER COVER GASKET AND EVENTUAL OIL SEEPAGE.

Consequence & remedy

Consequence: CERTAIN UNDERHOOD FIRES MAY BE CAUSED BY DROPS OF ENGINE OIL, FROM SEEPAGE OR SPILLAGE, BEING DEPOSITED ON THE EXHAUST MANIFOLD THROUGH HARD BRAKING. IF THE MANIFOLD IS HOT ENOUGH AND THE OIL RUNS BELOW THE HEAT SHIELD, IT MAY IGNITE INTO A SMALL FLAME AND, IN SOME INSTANCES, THE FIRE MAY SPREAD TO THE PLASTIC SPARK PLUG WIRE CHANNEL AND BEYOND.

Remedy: DEALERS WILL REPLACE THE ENGINE’S FRONT VALVE COVER AND FRONT-VALVE-COVER GASKET WITH NEW PARTS OF AN IMPROVED DESIGN AND REMOVE THE ENGINE’S PLASTIC COVER AND PLASTIC OIL-FILL-TUBE EXTENSION, ALONG WITH THE 1-3-5 SPARK PLUG WIRE RETAINERS, FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING MAY 2016. , FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING MAY 2016. UNTIL THE REMEDY IS COMPLETED, GM STRONGLY RECOMMENDS THAT OWNERS OBSERVE THE FOLLOWING IMPORTANT PRECAUTIONS (1) THAT OWNERS DO NOT PARK THEIR VEHICLE IN A GARAGE, CAR PORT, OR OTHER STRUCTURE; (2) IF OWNERS NOTICE A BURNING ODOR, THEY SHOULD HAVE THEIR DEALER INSPECT THE VEHICLE. THE DEALER WILL INSPECT THE VEHICLE WITHOUT CHARGE; (3) USE PREMIUM FUEL (91 OCTANE OR HIGHER) IN THE VEHICLE AS RECOMMENDED IN THE VEHICLE'S OWNER MANUAL. OWNERS MAY CONTACT BUICK AT 1-866-608-8080 OR PONTIAC AT 1-800-620-7668, OR THROUGH THEIR WEBSITE AT <A HREF=HTTP://WWW.GMOWNERCENTER.COM>HTTP://WWW.GMOWNERCENTER.COM</A> .

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

4

EA07008 · Engine Compartment Fire

Opened Jun 12, 2007 · Closed May 1, 2008

Status: closed (inferred from source dates) · Engine And Engine Cooling

BY LETTER DATED MARCH 12, 2008, GENERAL MOTORS CORP. (GM) HAS NOTIFIED THE AGENCY THAT IT WILL CONDUCT A SAFETY RECALL (IDENTIFIED BY NHTSA RECALL NUMBER 08V-118) TO ADDRESS A DEFECT IN APPROXIMATELY 207,542 MODEL YEAR (MY) 1997-2003 BUICK REGAL GS AND PONTIAC GRAND PRIX GTP VEHICLES EQUIPPED WITH THE L67 SUPERCHARGED VERSION OF GM'S 3800 SERIES II V6 ENGINE.THE RECALLED REGAL GS VEHICLES WERE BUILT FROM AUGUST 1996 TO JUNE 2003 AND THE GRAND PRIX GTP FROM MARCH 1996 THROUGH JANUARY 2003.ACCORDING TO GM, OIL MAY ESCAPE PAST THE VALVE COVER GASKET ON THE FRONT CYLINDER BANK (CYLINDERS 1-3-5) AND DEPOSIT ONTO HOT EXHAUST SYSTEM COMPONENTS.UNDER CERTAIN CONDITIONS, IT IS POSSIBLE FOR THIS OIL TO IGNITE A SMALL PILOT FLAME, WHICH MAY SPREAD TO THE ADJACENT PLASTIC SPARK PLUG WIRE CHANNEL, THE SPARK PLUG WIRES THEMSELVES, THE PLASTIC ENGINE COVER, AND OTHER UNDER HOOD COMPONENTS.REPORTS INDICATE THIS MOST OFTEN OCCURS ON HIGHER-MILEAGE VEHICLES SHORTLY AFTER THE VEHICLE HAS BEEN DRIVEN AND THEN PARKED.TYPICALLY, THE FIRE WAS DISCOVERED WITHIN 5 TO 15 MINUTES AFTER THE VEHICLE WAS PARKED.DURING THIS TIME WINDOW, UNDER HOOD TEMPERATURES MAY BECOME ELEVATED.SUCH ELEVATED TEMPERATURES COMBINED WITH A LACK OF AIRFLOW THROUGH THE ENGINE COMPARTMENT MAY PERMIT A SMALL PILOT FLAME TO PROPAGATE AND IGNITE OTHER FUEL SOURCES.TO CORRECT THE SAFETY DEFECT, GM WILL INSTALL AN IMPROVED DESIGN FRONT VALVE COVER GASKET AND SPARK PLUG WIRE RETAINER.THIS REMEDY WILL BE SUPPLIEDFREE OF CHARGE FOR ALL RECALLED VEHICLES.UNTIL SUFFICIENT PARTS BECOME AVAILABLE TO REPAIR ALL OF THE AFFECTED VEHICLES, GM STRONGLY RECOMMENDS THAT OWNERS OBSERVE THE FOLLOWING IMPORTANT PRECAUTIONS: (1) THEY STRONGLY RECOMMEND THAT OWNERS DO NOT PARK THEIR VEHICLE IN A GARAGE, CARPORT, OR OTHER STRUCTURE; (2) IF OWNERS NOTICE A BURNING ODOR, THEY SHOULD HAVE THEIR DEALER INSPECT THE VEHICLE - THE DEALER WILL INSPECT THE VEHICLE WITHOUT CHARGE; AND (3) USE PREMIUM FUEL (91 OCTANE OR HIGHER) IN THE VEHICLE AS RECOMMENDED IN THE VEHICLE'S OWNER MANUAL.THE ACTION TAKEN BY GM IS SUFFICIENT TO RESOLVE THE ISSUES RAISED BY THIS INVESTIGATION.THE SUBJECT FIRE INCIDENT RATE ON THE C-, G-, AND H-PLATFORM SUBJECT VEHICLES IS LOW.THE AGENCY WILL CONTINUE TO MONITOR THIS ISSUE AND RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.SEE DOCUMENT FILE FOR ADDITIONAL INFORMATION REGARDING THIS RESUME.

Additional source detail variants (2)

Engine And Engine Cooling

BY LETTER DATED MARCH 12, 2008, GENERAL MOTORS CORP. (GM) HAS NOTIFIED THE AGENCY THAT IT WILL CONDUCT A SAFETY RECALL (IDENTIFIED BY NHTSA RECALL NUMBER 08V-118) TO ADDRESS A DEFECT IN APPROXIMATELY 207,542 MODEL YEAR (MY) 1997-2003 BUICK REGAL GS AND PONTIAC GRAND PRIX GTP VEHICLES EQUIPPED WITH THE L67 SUPERCHARGED VERSION OF GM'S 3800 SERIES II V6 ENGINE.THE RECALLED REGAL GS VEHICLES WERE BUILT FROM AUGUST 1996 TO JUNE 2003 AND THE GRAND PRIX GTP FROM MARCH 1996 THROUGH JANUARY 2003.ACCORDING TO GM, OIL MAY ESCAPE PAST THE VALVE COVER GASKET ON THE FRONT CYLINDER BANK (CYLINDERS 1-3-5) AND DEPOSIT ONTO HOT EXHAUST SYSTEM COMPONENTS.UNDER CERTAIN CONDITIONS, IT IS POSSIBLE FOR THIS OIL TO IGNITE A SMALL PILOT FLAME, WHICH MAY SPREAD TO THE ADJACENT PLASTIC SPARK PLUG WIRE CHANNEL, THE SPARK PLUG WIRES THEMSELVES, THE PLASTIC ENGINE COVER, AND OTHER UNDER HOOD COMPONENTS.REPORTS INDICATE THIS MOST OFTEN OCCURS ON HIGHER-MILEAGE VEHICLES SHORTLY AFTER THE VEHICLE HAS BEEN DRIVEN AND THEN PARKED.TYPICALLY, THE FIRE WAS DISCOVERED WITHIN 5 TO 15 MINUTES AFTER THE VEHICLE WAS PARKED.DURING THIS TIME WINDOW, UNDER HOOD TEMPERATURES MAY BECOME ELEVATED.SUCH ELEVATED TEMPERATURES COMBINED WITH A LACK OF AIRFLOW THROUGH THE ENGINE COMPARTMENT MAY PERMIT A SMALL PILOT FLAME TO PROPAGATE AND IGNITE OTHER FUEL SOURCES.TO CORRECT THE SAFETY DEFECT, GM WILL INSTALL AN IMPROVED DESIGN FRONT VALVE COVER GASKET AND SPARK PLUG WIRE RETAINER.THIS REMEDY WILL BE SUPPLIEDFREE OF CHARGE FOR ALL RECALLED VEHICLES.UNTIL SUFFICIENT PARTS BECOME AVAILABLE TO REPAIR ALL OF THE AFFECTED VEHICLES, GM STRONGLY RECOMMENDS THAT OWNERS OBSERVE THE FOLLOWING IMPORTANT PRECAUTIONS: (1) THEY STRONGLY RECOMMEND THAT OWNERS DO NOT PARK THEIR VEHICLE IN A GARAGE, CARPORT, OR OTHER STRUCTURE; (2) IF OWNERS NOTICE A BURNING ODOR, THEY SHOULD HAVE THEIR DEALER INSPECT THE VEHICLE - THE DEALER WILL INSPECT THE VEHICLE WITHOUT CHARGE; AND (3) USE PREMIUM FUEL (91 OCTANE OR HIGHER) IN THE VEHICLE AS RECOMMENDED IN THE VEHICLE'S OWNER MANUAL.THE ACTION TAKEN BY GM IS SUFFICIENT TO RESOLVE THE ISSUES RAISED BY THIS INVESTIGATION.THE SUBJECT FIRE INCIDENT RATE ON THE C-, G-, AND H-PLATFORM SUBJECT VEHICLES IS LOW.THE AGENCY WILL CONTINUE TO MONITOR THIS ISSUE AND RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.SEE DOCUMENT FILE FOR ADDITIONAL INFORMATION REGARDING THIS RESUME.

Engine And Engine Cooling

BY LETTER DATED MARCH 12, 2008, GENERAL MOTORS CORP. (GM) HAS NOTIFIED THE AGENCY THAT IT WILL CONDUCT A SAFETY RECALL (IDENTIFIED BY NHTSA RECALL NUMBER 08V-118) TO ADDRESS A DEFECT IN APPROXIMATELY 207,542 MODEL YEAR (MY) 1997-2003 BUICK REGAL GS AND PONTIAC GRAND PRIX GTP VEHICLES EQUIPPED WITH THE L67 SUPERCHARGED VERSION OF GM'S 3800 SERIES II V6 ENGINE.THE RECALLED REGAL GS VEHICLES WERE BUILT FROM AUGUST 1996 TO JUNE 2003 AND THE GRAND PRIX GTP FROM MARCH 1996 THROUGH JANUARY 2003.ACCORDING TO GM, OIL MAY ESCAPE PAST THE VALVE COVER GASKET ON THE FRONT CYLINDER BANK (CYLINDERS 1-3-5) AND DEPOSIT ONTO HOT EXHAUST SYSTEM COMPONENTS.UNDER CERTAIN CONDITIONS, IT IS POSSIBLE FOR THIS OIL TO IGNITE A SMALL PILOT FLAME, WHICH MAY SPREAD TO THE ADJACENT PLASTIC SPARK PLUG WIRE CHANNEL, THE SPARK PLUG WIRES THEMSELVES, THE PLASTIC ENGINE COVER, AND OTHER UNDER HOOD COMPONENTS.REPORTS INDICATE THIS MOST OFTEN OCCURS ON HIGHER-MILEAGE VEHICLES SHORTLY AFTER THE VEHICLE HAS BEEN DRIVEN AND THEN PARKED.TYPICALLY, THE FIRE WAS DISCOVERED WITHIN 5 TO 15 MINUTES AFTER THE VEHICLE WAS PARKED.DURING THIS TIME WINDOW, UNDER HOOD TEMPERATURES MAY BECOME ELEVATED.SUCH ELEVATED TEMPERATURES COMBINED WITH A LACK OF AIRFLOW THROUGH THE ENGINE COMPARTMENT MAY PERMIT A SMALL PILOT FLAME TO PROPAGATE AND IGNITE OTHER FUEL SOURCES.TO CORRECT THE SAFETY DEFECT, GM WILL INSTALL AN IMPROVED DESIGN FRONT VALVE COVER GASKET AND SPARK PLUG WIRE RETAINER.THIS REMEDY WILL BE SUPPLIEDFREE OF CHARGE FOR ALL RECALLED VEHICLES.UNTIL SUFFICIENT PARTS BECOME AVAILABLE TO REPAIR ALL OF THE AFFECTED VEHICLES, GM STRONGLY RECOMMENDS THAT OWNERS OBSERVE THE FOLLOWING IMPORTANT PRECAUTIONS: (1) THEY STRONGLY RECOMMEND THAT OWNERS DO NOT PARK THEIR VEHICLE IN A GARAGE, CARPORT, OR OTHER STRUCTURE; (2) IF OWNERS NOTICE A BURNING ODOR, THEY SHOULD HAVE THEIR DEALER INSPECT THE VEHICLE - THE DEALER WILL INSPECT THE VEHICLE WITHOUT CHARGE; AND (3) USE PREMIUM FUEL (91 OCTANE OR HIGHER) IN THE VEHICLE AS RECOMMENDED IN THE VEHICLE'S OWNER MANUAL.THE ACTION TAKEN BY GM IS SUFFICIENT TO RESOLVE THE ISSUES RAISED BY THIS INVESTIGATION.THE SUBJECT FIRE INCIDENT RATE ON THE C-, G-, AND H-PLATFORM SUBJECT VEHICLES IS LOW.THE AGENCY WILL CONTINUE TO MONITOR THIS ISSUE AND RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.SEE DOCUMENT FILE FOR ADDITIONAL INFORMATION REGARDING THIS RESUME.

PE07006 · Engine Compartment Fire

Opened Jan 29, 2007 · Closed Jun 12, 2007

Status: closed (inferred from source dates) · Engine And Engine Cooling

ON JANUARY 29, 2007, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION TO INVESTIGATE ALLEGED NON-CRASH FIRES ORIGINATING IN THE ENGINE COMPARTMENT IN CERTAIN MODEL YEAR (MY) 1999-2002 PONTIAC GRAND PRIX GTP VEHICLES EQUIPPED WITH THE ?L67? SUPERCHARGED VERSION OF THE GENERAL MOTORS (GM) 3800 SERIES II V6 ENGINE.TO DATE, ODI IS AWARE OF 121 NON-DUPLICATIVE COMPLAINTS ON THE SUBJECT VEHICLES THAT ALLEGE NON-CRASH RELATED FIRES ORIGINATING IN THE ENGINE COMPARTMENT WHILE DRIVING OR AFTER THE VEHICLE IS PARKED AND THE IGNITION SWITCHED OFF. WHILE NO SUBJECT COMPONENT HAS YET BEEN IDENTIFIED, ODI ANALYSIS OF AVAILABLE INFORMATION INDICATES THAT THE ALLEGED FIRE INCIDENT RATE AMONG THE SUBJECT VEHICLES IS SIGNIFICANTLY HIGHER THAN GM PEER VEHICLES THAT USE THE NON-SUPERCHARGED ?L36? VERSION OF THE GM 3800 SERIES II V6 ENGINE.IN SOME CASES, THE FIRE INCIDENT RATE IS TWICE AS HIGH IN THE SUBJECT VEHICLES AND UP TO AS MUCH AS AN ORDER OF MAGNITUDE GREATER THAN IN NON-SUPERCHARGED PEER VEHICLES.FOR INSTANCE, THE SUBJECT FIRE INCIDENT RATE FOR THE SUPERCHARGED MY 2000 PONTIAC GRAND PRIX GTP IS APPROXIMATELY 236 PER 100,000 VEHICLES PRODUCED (58 FIRES / 24,509 SUBJECT VEHICLES OR 0.236%) WHILE THE FIRE INCIDENT RATE FOR MY 2000 PONTIAC GRAND PRIX VEHICLES EQUIPPED WITH THE NATURALLY ASPIRATED ?L36? ENGINE IS APPROXIMATELY 18 PER 100,000 VEHICLES PRODUCED (17 FIRES / 90,338 VEHICLES OR 0.018%). THE MANUFACTURER?S INVESTIGATION INTO ALLEGED ENGINE COMPARTMENT FIRES ON THE SUBJECT VEHICLES IS ONGOING.ACCORDINGLY, THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA07-008) TO FURTHER STUDY THE FREQUENCY AND SCOPE OF THE ALLEGED DEFECT. BASED ON THE INFORMATION REVIEWED IN PE07-006, THE RANGE OF SUBJECT VEHICLES UNDER INVESTIGATION WILL BE EXPANDED TO INCLUDE ALL MY 1999-2002 BUICK PARK AVENUE, REGAL, AND RIVIERA, OLDSMOBILE LSS, AND PONTIAC BONNEVILLE AND GRAND PRIX VEHICLES THAT USE THE SAME OR SUBSTANTIALLY SIMILAR TRANSVERSE MOUNTED ?L67? ENGINE.

PE07001 · Loss Of Brake Lamp Illumination

Opened Jan 17, 2007 · Closed Apr 30, 2007

Status: closed (inferred from source dates) · Electrical System; Exterior Lighting:brake Lights

THE AGENCY'S ANALYSIS OF GM'S COMPLAINT AND WARRANTY DATA FOR THE SUBJECT VEHICLES, INCLUDING A COMPARISON WITH OTHER AGENCY AND MANUFACTURER DATA PERTAINING TO OTHER VEHICLE BRAKE LAMP INVESTIGATIONS, INDICATED A LOW FAILURE HISTORY FOR THE SUBJECT VEHICLES.THIS INVESTIGATION INCLUDED A REVIEW AND ANALYSIS OF DATA FOR RELEVANT BRAKE LAMP MALFUNCTIONS THAT REQUIRE REPLACEMENT OF THE MULTIFUNCTION SWITCH (MFS) MODULE.THE HAZARD WARNING SWITCH IS AN INTEGRAL PART OF THE MFS MODULE.OTHER COMPONENTS THAT AFFECT BRAKE LAMP ILLUMINATION SUCH AS WIRING, BULB SOCKETS, AND THE PLUNGER-TYPE BRAKE LAMP SWITCH, WERE NOT A PART OF THIS INVESTIGATION.A SAFETY-RELATED DEFECT TREND HAS NOT BEEN IDENTIFIED AND THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY DEFECT DOES NOT EXIST.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.

Additional source detail variants (2)

Electrical System

THE AGENCY'S ANALYSIS OF GM'S COMPLAINT AND WARRANTY DATA FOR THE SUBJECT VEHICLES, INCLUDING A COMPARISON WITH OTHER AGENCY AND MANUFACTURER DATA PERTAINING TO OTHER VEHICLE BRAKE LAMP INVESTIGATIONS, INDICATED A LOW FAILURE HISTORY FOR THE SUBJECT VEHICLES.THIS INVESTIGATION INCLUDED A REVIEW AND ANALYSIS OF DATA FOR RELEVANT BRAKE LAMP MALFUNCTIONS THAT REQUIRE REPLACEMENT OF THE MULTIFUNCTION SWITCH (MFS) MODULE.THE HAZARD WARNING SWITCH IS AN INTEGRAL PART OF THE MFS MODULE.OTHER COMPONENTS THAT AFFECT BRAKE LAMP ILLUMINATION SUCH AS WIRING, BULB SOCKETS, AND THE PLUNGER-TYPE BRAKE LAMP SWITCH, WERE NOT A PART OF THIS INVESTIGATION.A SAFETY-RELATED DEFECT TREND HAS NOT BEEN IDENTIFIED AND THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY DEFECT DOES NOT EXIST.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.

Exterior Lighting:brake Lights

THE AGENCY'S ANALYSIS OF GM'S COMPLAINT AND WARRANTY DATA FOR THE SUBJECT VEHICLES, INCLUDING A COMPARISON WITH OTHER AGENCY AND MANUFACTURER DATA PERTAINING TO OTHER VEHICLE BRAKE LAMP INVESTIGATIONS, INDICATED A LOW FAILURE HISTORY FOR THE SUBJECT VEHICLES.THIS INVESTIGATION INCLUDED A REVIEW AND ANALYSIS OF DATA FOR RELEVANT BRAKE LAMP MALFUNCTIONS THAT REQUIRE REPLACEMENT OF THE MULTIFUNCTION SWITCH (MFS) MODULE.THE HAZARD WARNING SWITCH IS AN INTEGRAL PART OF THE MFS MODULE.OTHER COMPONENTS THAT AFFECT BRAKE LAMP ILLUMINATION SUCH AS WIRING, BULB SOCKETS, AND THE PLUNGER-TYPE BRAKE LAMP SWITCH, WERE NOT A PART OF THIS INVESTIGATION.A SAFETY-RELATED DEFECT TREND HAS NOT BEEN IDENTIFIED AND THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY DEFECT DOES NOT EXIST.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.

EA02030 · 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.