7.3idi loud knock
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Joined: Dec 2023
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7.3idi loud knock
My 1989 7.3idi has recently started knocking/tapping from the top of the engine it sounds like. It smokes white on start up but then goes away. The knock speed increases with the speed of the engine. It runs and idles fine. One thing I noticed how ever, is the driver side exhaust pipe is softer than the passenger side. The passenger side will blow your hand off. The driver side barely will. If i put my ear as close as i can to each exhaust pipe, the loud tap/knock is louder in the driver side as well. Any thoughts or suggestions would be greatly appreciated. Thank you
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