1992 Chevy Van Catalytic Converter??

1992 CHEVROLET VAN
164,000 MILES • V8 • FWD • AUTOMATIC
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JROD1211979
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I am curious if the sound of popcorn popping when I am driving is the signal that my catalytic converter needs to be replace???
Sep 3, 2008 at 4:09 PM
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RASMATAZ
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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.
Sep 3, 2008 at 4:29 PM