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.
Loss of Engine Power Due to Plugged Catalytic Converter on Pontiac Grand Prix
Average mileage: 122,795 (65,000–168,000)
17 people reported this problem
9 people shared problem details
2002 Pontiac Grand Prix152,675Visitor
I HAD MY BOYFRIEND KNOCK OUT THE COMBS IN THE CATALYTIC CONVERTER
2001 Pontiac Grand Prix139,000Visitor
2004 Pontiac Grand Prix110,000Visitor
loss of power and not as it should be I believe it's the Catalectic converter.
2002 Pontiac Grand Prix77,600Visitor
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 Prix130,000Visitor
Had to have the entire exhaust system replaced it has a plugged catalytic convertor.
2001 Pontiac Grand PrixVisitor
loss of power bad
2001 Pontiac Grand Prix130,000Visitor
Put on an aftermarket catalytic, had to replace a few months later with a GM converter $800
2001 Pontiac Grand Prix100,000Visitor
Lost of power going up hills. $700.00 to fix
2001 Pontiac Grand Prix120,345Visitor
had no power exausth manifold get red hot , replaced catiliatic converted ran great
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