Question about Chevrolet Silverado
Plugged catalytic converters are very rare in newer vehicles, the old bedded cats did this that GM used but not the new ceramic grid cats unless the exhaust got cherry red from excess fuel or extreme overloading of the vehicle. The two things you need to do a re this run a fault code test then check the fuel pressure if no codes show up other than a lean code, if all is well have a exhaust back pressure test run.
Posted on Mar 21, 2017
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Posted on Jan 02, 2017
it might be a clogged car , but did you do the simple thing and remove the fuel filter and try to blow through it ?
Posted on Jan 18, 2009
get your catalytic converter checked, i have a 2002 gt model and GM just replaced the old with a new one free of charge. They have been having problems with them clogging up so they extended the warranty to 190000kms or 10 years. had the same issues as you and when it was replaced all was good, even sounded better. hope this helps and I hope you get the same deal as I did. it is not a recall so you have to bring it up to them. Good luck.
Posted on Jun 05, 2009
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