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Pontiac
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1993
Engine & Cooling

1993 Pontiac Grand Prix engine problems

15 of the 185 complaints about the 1993 Pontiac Grand Prix are about the engine — 8% of everything reported for this model year. Half of the failures with a mileage on record happened before 115,000 miles.

Complaints

Crashes

Fires

Injuries

Exactly what failed

Gasoline 4 26.7%

Engine 3 20.0%

Emission Control 2 13.3%

Radiator Assembly 1 6.7%

GAS Recirculation Valve (Egr Valve) 1 6.7%

Exhaust System 1 6.7%

Manifold/Header/Muffler/Tail Pipe 1 6.7%

Cooling System 1 6.7%

Engine AND Engine Cooling 1 6.7%

Engine & Cooling across every Pontiac Grand Prix year

1989 16 1.1%

1990 20 1.3%

1991 19 1.3%

1992 17 1.1%

1993 15 1.0%

1994 23 1.5%

1995 11 0.7%

1996 21 1.4%

1997 184 12.2%

1998 128 8.5%

1999 207 13.7%

2000 229 15.1%

2001 174 11.5%

2002 148 9.8%

2003 48 3.2%

2004 140 9.2%

2005 20 1.3%

2006 38 2.5%

2007 32 2.1%

2008 24 1.6%

What owners said

Filed with NHTSA, in their own words.

Filed 14 Jan 2004 at 115,000 miles Osakis, MN Crash

ENGINE AND ENGINE COOLING

SEVERAL PROBLEMS AT DIFFERENT TIMES.OLT FELL OUT OF REAR OF ENGINE CRADLE CAUSING LOSS OF STEERING. WENT INTO THE DITCH AND COULD HAVE BEEN SERIOUS IF IT HAD HAPPENED AT A DIFFERENT LOCATION. SEVERE OIL LEAK IN ENGINE, ORIGIN UNKNOWN.ILTING MECHANISM IN STEERING COLUMN IS LOOSE WHICH CAUSED BRACKET TO BREAK AND ALLOWS STEERING WHEEL TO MOVE UP AND DOWN. WHILE STEERING WHEEL IS DOWN AND BEING TURNED, THE CAR DIES. SEAT TILT MECHANISM ON FRONT PASSENGER SEAT DOES NOT HOLD SEAT BACK IN UPRIGHT POSITION. WHITE SMOKE COMES OUT OF STEERING COLUMN AFTER THE CAR IS STARTED. REAR BRAKE CALIPERS RUST CAUSING BRAKES TO LOCK UP AND SCORE THE ROTOR.

NHTSA complaint #10053179 — an unverified report by a vehicle owner.

Filed 19 Apr 2001 Charlotte, NC 3 injured

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

THERE WERE BOLTS MISSING OR NOT PUT IN AT THE MANUFACTURER TO CAUSE THE UPPER AN LOWER GASKET TO GO BAD RIGHT WERE THE TWO BOLTS WERE MESSING . THEY SAID THAT THERE WAS SUPPOSE TO BE 14BOLTS AN I HAD 12 BOLTS THATS WHY THE UPPER AN LOWER GASKET BLEW RIGHT WARE THE TO BOLTS WERE MESSING . NOW WHEN I GOT THIS CAR IT HAD 32100 MILESON IT THE CLEAR COAT WAS COMING OFF THEN TOOK IT TO A TO BOLTS AND I HAD 12 AN WARE THE TO BOLTS WERE MESSING IS WERE THE GASKET BLEW OUT. SO I HAD TO PAY 678.63 .AND THEN THE CLEAR COAT STARTED PEELING AND CHIPPING ON THE CAR . NOW WHEN I GOT THIS CAR , IT HAD 32100 MILES ON IT

NHTSA complaint #743614 — an unverified report by a vehicle owner.

Filed 27 Mar 2001 Mounds View, MN

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

THE EVAPORATIVE EMISSIONS CANISTER PERGE CYLINDER VALVE FAILED. NLM

NHTSA complaint #560205 — an unverified report by a vehicle owner.

Filed 29 Jun 2000 Kenyon, MN

ENGINE AND ENGINE COOLING:ENGINE

WHILE DRIVING IN TOWN HEARD A CLUNKING SOUND, AND COULD NO LONGER STEER THE VEHICLE. THEN STOPPED, LOOKED UNDERNEATH, AND THE ENGINE WAS ON THE GROUND. TOWED TO THE DEALER. *AK

NHTSA complaint #864477 — an unverified report by a vehicle owner.

Filed 9 Dec 1999 Sunbury, OH Fire

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

AFTER DRIVING FOR 30 MINUTES VEHICLE WAS PARKED, CONSUMER NOTICED SMOKE COMING FROM THE ENGINE AREA. THEN FIRE WAS NOTICED FALLING FROM THE BOTTOM, AND THE ENGINE COMPARTMENT BROKE OUT INTO FLAMES, BURNING THE VEHICLE UP. CAUSE OF FIRE UNKNOWN. DEALER HAS NOT BEEN CONTACTED.

NHTSA complaint #853913 — an unverified report by a vehicle owner.

Filed 7 Oct 1999 Lacassas, TN

ENGINE AND ENGINE COOLING:COOLING SYSTEM

NO SUMMARY

NHTSA complaint #712978 — an unverified report by a vehicle owner.

Filed 5 Aug 1998 Cedarhurst, NY

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

ENGINE FAILED.