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Engine Lubrication Symptom Troubleshooting Index

Symptom
Diagnostic procedure
Also check for
Excessive engine oil consumption
1.
2.
3.
4.
5.
Verify that the engine oil filler cap, oil drain bolt, and oil filter are tight.
Check for oil leaks.
Low oil pressure indicator does not come on with the ignition switch ON (II)
1.
2.
An open in the wire between the engine control module (ECM)/powertrain control module (PCM) and the oil pressure switch
Engine oil level sensor system indication symbol comes on in the multi information display
Low oil pressure indicator stays on
1.
2.
3.
4.
5.
6.
7.
8.
Check the engine oil level.
Check the oil filter for clogging.
Check the oil screen for clogging.
Check the relief valve.
A wire shorted to ground between the engine control module (ECM)/powertrain control module (PCM) and the oil pressure switch