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

id0103a0802200

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

Diagnostic procedure

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