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  1. Engine Knock or Something Else?

    For about a week now I have had this croaking/knocking like sound coming from my motor. It only happens when in park and reverse at idle rpm (appx 750) up to about 1200rpm and it's goes away after that. NOTE: I've had Ktuner on this car for almost 25k miles and no issues. It's a 93 tune but I'm...




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