Q: severe rattling on right side of engine, near alternator

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car can be moved under its own power, but cannot be driven

My car has 188004 miles.

The engine crankshaft pulley is broken most likely. This car had a recall or technical bulletin years ago on replacing this pulley. It may look okay until you run the engine and it will wobble or not turn any accessories and make a loud rattle. I cannot locate the exact TSB number about this right now. The problem should be verified by a technician before going any further. You can find a qualified professional through YourMechanic, who can come to your home or work and diagnose your rattle.

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