i have an 96 Z28 A4 and when driving i gun it a little bit and it makes a loud knock! it feels like its under the gearbox. What's wrong?
check and see if motor mount on driver side is broke,raise hood crank put in gear give a little gas ,see if engine raises up ,if dose motor mount needs replacing.
Yes, also check your universal joint behind the transmission, U-joints will make this noise sometimes on acceleration like a motor mount.
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