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Resources for the Repair and Maintenance of your 2003 Pontiac Grand Prix

2003 Pontiac Grand Prix

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2003 Pontiac Grand Prix Problems

Engine -- Verified

The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell us that operating the engine  with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.

Engine -- Verified

The fuel pump may fail causing engine to stall and not restart.

Engine -- Verified

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The mass air flow or crankshaft position sensor may fail causing the engine to intermittently stall. It may be necessary for the engine to cool down before it will restart.

Engine -- Verified

The water pump may develop a coolant leak resulting in an engine overheating condition.
 

Drive Train -- Verified

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You may be able to prevent transmission problems by servicing the transmission and inspecting the fluid every 30,000 miles. If the fluid is dark or burned then the transmission system should be completely flushed.

2003 Pontiac Grand Prix Recalls (Recent)

Engine, April 28, 2008

Summary: 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.

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Engine, April 9, 2009

Summary: 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.

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2003 Pontiac Grand Prix Questions and Answers

Relchatt, 2003 Pontiac Grand Prix, 3.1L V6, Hixson, TN

None of the passenger windows will go up or down. I've pressed the lockout button on the driver side both up and down and nothing happens. Could the switch be stuck? Is there a way to free ...

roger34, 2003 Pontiac Grand Prix, 3.8L V6, Charleston, WV

what would cause my 2003 pontiac grand prix to shift hard.And other times it shifts fine or it will be sluggish or slips or something.Please any suggestions would be great.

Red Raider, 2003 Pontiac Grand Prix, 3.8L V6, Lubbock, TX

The moonroof on the car was left open during a rain, now the AC will only sometimes work and when it does work it will only do so with the fan on high. The radio display will not work, though it w...

Motoman50, 2003 Pontiac Grand Prix, 3.1L V6, Medford, MA

I was told changing the blower motor resistor was easy, so I bought the part to fix it myself. I wanted to make sure I get this right; how do I get to the blower motor to change the resistor?

rlowe2003, 2003 Pontiac Grand Prix, 3.8L V6, Luck, WI

it got a high rpm sound but its not tranny and motor it sound higher when turning to the right and not so much when turning the left. thinking is the cv shaft but not sure

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