Q: Rattling coming from the engine.

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Vehicle has over 194,000 miles and I noticed a low rattle sound in the engine.

A low rattle sound in the engine could be a symptom of failed crankshaft bearings. It could also be a symptom of a simple pulley bearing going bad for your serpentine belt. I would ask for help from a mechanic to hear the actual noise and advise you on what repairs are needed.

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