I have noticed that when I push down on the gas pedal, my Audi 80's engine produces a loud knocking sound. It seems to happen more frequently when the car is cold. What could be causing this and how can I fix it?
ReplyThe knocking noise is most likely due to spark plugs that are worn out or improperly gapped. You should have them replaced or regapped as soon as possible to prevent further damage to your engine.
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