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 indicator does not come on with the ignition switch in ON (II), or the vehicle in the ON mode
1.
Do the low oil pressure indicator does not come on with the ignition switch in ON (II), or the vehicle in the ON mode procedure
.
2.
Test the oil pressure switch
.
An open in the wire between the PCM and the oil pressure switch
Low oil pressure indicator stays on
1.
Check the engine oil level
.
2.
Do the low oil pressure indicator stays on procedure
.
A wire shorted to ground between the PCM and the oil pressure switch