Mechanics

CHEVY CATALYTIC CONVERTER??

1992 Chevrolet Van

Noises problem
1992 Chevy Van V8 Front Wheel Drive Automatic 164000 miles

I am curious if the sound of popcorn popping when I am driving is the signal that my catalytic converter needs to be replace?
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Jrod1211979
September 3, 2008.




If its not detonation, could be vacuum and exhaust leak-You can have the exhaust system backpressure or gas tested to rule out a failing catalytic converter.

Rasmataz
Sep 3, 2008.


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