Lubrication
2-2
Troubleshooting
Oil level too low - high oil consumption
External oil leaks
Worn piston rings
Worn valve guide or seal
Oil contamination
Oil or filter not changed often enough
Head gasket faulty
Worn piston rings
Low oil pressure
Oil level now
Pressure relief valve stuck open
Plugged oil pick-up screen
Oil pump worn
External oil leaks
High oil pressure
Pressure relief valve stuck closed
Plugged oil filter, gallery, or metering orifice
Incorrect oil being used
No oil pressure
Oil level low
Oil Pump drive gear broken
Oil pump faulty
Internal oil leakage
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