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  1. mustangmalibu

    Tapping sound on my 7.3 idi

    Hello all, I've been working for months trying to find out what this knock in my engine is it starts as a tapping as it gets warmer it starts getting louder and louder and louder if you drive it long enough it sounds like it's going to throw a rod. I posted on this form before and I got the same...
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