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: 127,435 (65,000–215,000)
21 people reported this problem
2002 Pontiac Grand Prix 152,675 mi, Visitor
I HAD MY BOYFRIEND KNOCK OUT THE COMBS IN THE CATALYTIC CONVERTER
2004 Pontiac Grand Prix 110,000 mi, Visitor
loss of power and not as it should be I believe it's the Catalectic converter.
2001 Pontiac Grand Prix 139,000 mi, Visitor
2002 Pontiac Grand Prix 77,600 mi, Visitor
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, Visitor
Had to have the entire exhaust system replaced it has a plugged catalytic convertor.
loss of power bad
2001 Pontiac Grand Prix 130,000 mi, Visitor
Put on an aftermarket catalytic, had to replace a few months later with a GM converter $800
2001 Pontiac Grand Prix 100,000 mi, Visitor
Lost of power going up hills. $700.00 to fix
2001 Pontiac Grand Prix 120,345 mi, Visitor
had no power exausth manifold get red hot , replaced catiliatic converted ran great