Loss of Engine Power Due to Plugged Catalytic Converter on Pontiac Grand Prix

The catalytic converter may become plugged resulting in loss of engine power. General Motors has extended the catalytic convertor warranty on some models to 10 years or 120,000 miles. Please contact your local GM dealer to see if your vehicle is included.

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Average mileage: 124,593 (65,000–215,000)
7 model years affected: 1994, 2001, 2002, 2004, more2005, 2006, 2008
25 people reported this problem
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Viewing 1 - 12 of 12 problem details
2002 Pontiac Grand Prix 152,675 mi,
2004 Pontiac Grand Prix 110,000 mi,
loss of power and not as it should be I believe it's the Catalectic converter.
2001 Pontiac Grand Prix 139,000 mi,
straight pipe
2004 Pontiac Grand Prix 137,000 mi,
sulfur or rotten egg smell loss of power does not go immideatley when you hit the gas it takes a scond
2006 Pontiac Grand Prix 113,000 mi,
I have replaced two catalytic converters in the car and it still says its a problem
2006 Pontiac grand Prix loss of engine power due to clogged catalac conveter
2002 Pontiac Grand Prix 77,600 mi,
Loss of power causing the transmission to not shift out of first gear. Car is in the shop right now and I am currently being told it is a plugged Catalytic converter. Shop is trying to charge me $800 to fix it.
2006 Pontiac Grand Prix 130,000 mi,
Had to have the entire exhaust system replaced it has a plugged catalytic convertor.
2001 Pontiac Grand Prix 130,000 mi,
Put on an aftermarket catalytic, had to replace a few months later with a GM converter $800
2001 Pontiac Grand Prix 100,000 mi,
Lost of power going up hills. $700.00 to fix
2001 Pontiac Grand Prix 120,345 mi,
had no power exausth manifold get red hot , replaced catiliatic converted ran great