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420A Noises coming from engine bay


Proven Member
May 27, 2017
Odenton, Maryland
Sounds almost like your timing belt is slapping against the timing cover. Doubt this as you would most likely jump teeth if the belt was that loose.

I would start by inspecting the external drive belts and pulleys. If everything there checked out I would try to pinpoint where that "slapping" sound is coming from by using a mechanic's stethoscope. Once I found the source location I would dig in further to ID the cause.
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