Engine Lubrication System Symptom Troubleshooting Index

Engine Lubrication System Symptom Troubleshooting Index

Symptom

Diagnostic procedure

Also check for

Excessive engine oil consumption

1- Check for oil leaks- 2- Check for worn valve guide(s); or worn valve seal(s)- 3- Check for a damaged or worn piston ring(s)- 4- Check for damaged or worn engine internal parts (cylinder wall, pistons, etc.)- Check the maintenance records as engine oil that is worn out burns off at a higher rate

Low oil pressure warning message displays on

1- Check the engine oil level- 2- Do the symptom troubleshooting for Low oil pressure warning message displays on- A wire shorted to ground between the PCM and the engine oil pressure switch

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