I recently purchased a BMW M9 and have noticed that the engine has been making a loud knocking noise. This noise seems to be getting louder and more frequent. What could be causing this issue and what steps can I take to address it?
ReplyThe knocking noise could be caused by a variety of issues such as faulty spark plugs, a damaged fuel pump, or even low oil levels. It's important to bring your car to a trusted mechanic to properly diagnose and address the issue.
Another possible cause could be a problem with the engine's timing chain. This can be a costly repair, but it's important to get it fixed as soon as possible to avoid causing further damage to the engine.
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