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.
Have a car question? Get free advice from our top-rated mechanics.