"Exhaust leak prior to catalysts"
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Joined: 03-17-2012
Posts: 1,042
From: Bay Area, CA
"Exhaust leak prior to catalysts"
Went to smog my 2010 LT with 225k and the guy said it failed.
He said it's an exhaust leak before the cat. And if it was after it wouldn't have mattered.
Curious how you can find that if the car isn't throwing codes and how I can fix it or where to start checking?
He said it's an exhaust leak before the cat. And if it was after it wouldn't have mattered.
Curious how you can find that if the car isn't throwing codes and how I can fix it or where to start checking?
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Joined: 10-13-2011
Posts: 40,083
From: Welland,Ont Canada
Look at the exhaust manifold gasket to the catalytic converter pipe , then the flex pipe
https://www.chevyhhr.net/forums/how-...ex-pipe-31536/
https://www.chevyhhr.net/forums/how-...ex-pipe-31536/
Thread Starter
Senior Member
Joined: 03-17-2012
Posts: 1,042
From: Bay Area, CA
Look at the exhaust manifold gasket to the catalytic converter pipe , then the flex pipe
https://www.chevyhhr.net/forums/how-...ex-pipe-31536/
https://www.chevyhhr.net/forums/how-...ex-pipe-31536/
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