| Excessive engine oil consumption |
- Verify the engine oil filler cap, the oil drain bolt, and the oil filter are tight.
- Check for oil leaks.
- Check for worn valve guide(s):
- Check for damaged or worn piston ring(s) (see
PISTON RING REPLACEMENT
).
- Check for damaged or worn engine internal parts (cylinder wall, pistons, etc.) (see
BLOCK AND PISTON INSPECTION
).
|
Check the maintenance records as engine oil that is worn out bums off at a higher rate |
| Low oil pressure indicator stays on |
- Check the engine oil level .
- Do the low oil pressure indicator circuit troubleshooting (Open) procedure.
|
An open in the wire between the ECM/PCM and the oil pressure switch |
| Low oil pressure indicator does not come on with the ignition switch in ON (II), or the vehicle ignition in the ON mode |
- Do the low oil pressure indicator circuit troubleshooting (Short) procedure.
- Test the oil pressure switch .
|
A wire shorted to ground between the ECM/PCM and the oil pressure switch |