#
NO.16 HIGH OIL CONSUMPTION/LEAKAGE [L8, LF, L3]

id0103a1802200

16 | HIGH OIL CONSUMPTION/LEAKAGE
--- | ---
DESCRIPTION | Oil consumption is excessive.
POSSIBLE CAUSE | • PCV valve malfunction • Improper dipstick • Improper engine oil viscosity • Engine internal parts malfunction

Diagnostic procedure

STEP | INSPECTION | RESULTS | ACTION
--- | --- | --- | ---
1 | Remove and shake the PCV valve. Does the PCV valve rattle? | Yes | Go to the next step.
No | Replace the PCV valve.
2 | Inspect for the following: • External leakage • Proper dipstick • Proper engine oil viscosity Are all items normal? | Yes | Inspect the internal engine parts such as valves, valve guides, valve stem seals, cylinder head drain passage, and piston rings.
No | Service if necessary. Repeat Step 2.
3 | • Verify test results. - If normal, return to diagnostic index to service any additional symptoms. (See ENGINE SYMPTOM TROUBLESHOOTING [L8, LF, L3].) - If malfunction remains, inspect related Service Information and perform repair or diagnosis. • If vehicle is repaired, troubleshooting completed. • If vehicle is not repaired or additional diagnostic information is not available, replace the PCM. (See PCM REMOVAL/INSTALLATION [L8, LF, L3].)