I noticed that my Audi A4 engine makes a loud tapping noise when idle, but the noise goes away when I rev the engine. What could be causing this issue?
ReplyIt sounds like you may be experiencing a faulty lifter in your engine. This can be caused by a lack of lubrication or buildup of deposits. It's important to have this looked at by a mechanic as soon as possible to prevent further damage.
Another possible cause could be that your engine oil is too low or needs to be changed. Make sure to check your oil level and consider getting an oil change if needed.
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