| 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, worn out engine oil will burn off at a higher rate |
| 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 (Open) (see
LOW OIL PRESSURE INDICATOR CIRCUIT TROUBLESHOOTING (OPEN) )
- Test the oil pressure switch (see
OIL PRESSURE SWITCH TEST )
|
A wire shorted to ground between the PCM and the oil pressure switch |
| Low oil pressure indicator stays on |
- Check the engine oil level
- Do the low oil pressure indicator circuit troubleshooting (Short) (see
LOW OIL PRESSURE INDICATOR CIRCUIT TROUBLESHOOTING (SHORT) )
- Test the oil pressure switch (see
OIL PRESSURE SWITCH TEST )
- Check the engine oil pressure (see
OIL PRESSURE TEST )
- Check the oil filter for clogging
- Check the oil strainer for clogging
- Check the relief valve (see
OIL PUMP OVERHAUL )
- Test the oil pump (see
REMOVAL )
|
An open in the wire between the powertrain control module (PCM) and the oil pressure switch |