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PY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street > Why am I pinging all of a sudden?
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Old 11-11-2021, 10:02 AM
Stumann Stumann is offline
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I can't believe no one has mentioned a failed EGR valve. I was turning wrenches for a living in the 70's and 80's and a bad EGR valve was always the problem.

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Old 11-11-2021, 12:28 PM
74Grandville 74Grandville is offline
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Originally Posted by Stumann View Post
I can't believe no one has mentioned a failed EGR valve. I was turning wrenches for a living in the 70's and 80's and a bad EGR valve was always the problem.
good call out. i recently fixed my 1977 formula ping by replacing the EGR... part throttle it was really bad until EGR was replaced.

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