Oil is leaking at the crankshaft behind the pulley.
Hi there. Sounds to me that your vehicle is leaking oil from the front main seal of your engine. The front main seal seals your crankshaft to your engine block while allowing the crankshaft to rotate. When the seal is not effective anymore it will allow oil to leak put of your engine. I would have a certified mechanic diagnose the cause of your leak in order to make the necessary repairs.
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