Loss of Engine Power Due to Plugged Catalytic Converter on Chevrolet Monte Carlo

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: 114,055 (75,000–170,000)
3 model years affected: 2001, 2002, 2003
12 people reported this problem
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Viewing 1 - 5 of 5 problem details
2001 Chevrolet Monte Carlo 150,000 mi,
my 01 monte carlo ss will idle fine but when i go to take it down the road when i get up to about 25 or 30 mph it starts jerkin bad and starts boggin down and i just cant figure out a solution
2002 Chevrolet Monte Carlo 80,000 mi,
Replaced catalytic converter. Head gasket blew shortly later. Replaced engine gaskets. Now the heater won't work. Still trying to figure that out.
2002 Chevrolet Monte Carlo 85,000 mi,
Car hesitates...catalytic convertor broke and plugged needs to be replaced.
2003 Chevrolet Monte Carlo 84,500 mi,
clogged catalytic converter. No codes, just no power.