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Why does the oil light come on and the engine make noise?

1 Answers

Geoffrey

07/29/25 8:03pm

The reasons for the oil light coming on and the engine making noise are: 1. Insufficient oil level; 2. Damaged oil pump components with excessive clearance; 3. Improper clearance between the crankshaft and big/small bearings; 4. Clogged oil filter or oil suction screen; 5. Faulty or damaged oil return valve; 6. Main oil gallery return valve spring stuck by debris causing poor sealing. The solutions for the oil light coming on and the engine making noise are: 1. Add oil promptly; 2. Replace the oil pump; 3. Adjust the clearance between the crankshaft and big/small bearings; 4. Replace the oil filter; 5. Clean the oil passages to ensure smooth flow; 6. Remove engine carbon deposits; 7. Replace the oil return valve.

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