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Re: GM Exhaust pipe valve
Posted to Technical Discussion Forum on 6/30/2025 1 Reply

Hi Glenn.

Clear and thorough answer as usual.

Working for GMC, I saw a few complaints of the Passive Exhaust Valves with a spring. Just in front or just behind the muffler. This is the PIT that I used:

PIT5532A Squeak Chirp Type Noise From Rear O... Login to read more.

Files Referenced:

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