Chevrolet Monte Carlo Problems

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

Problem Description and Possible Solution

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.

(17 people reported this problem)

Chevrolet Monte Carlo Vehicles With This Problem

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Average mileage: 114,055 (75,000–170,000)
3 model years affected: 2001, 2002, 2003
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Brake problem? Or maybe a faulty head gasket cylinder?
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Viewing 1-5 of 5 comments
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
Replaced catalytic converter. Head gasket blew shortly later. Replaced engine gaskets. Now the heater won't work. Still trying to figure that out.