NO.16 HIGH OIL CONSUMPTION/LEAKAGE [LF]

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NO.16 HIGH OIL CONSUMPTION/LEAKAGE [LF]

B3E010318881W18

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 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 [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 [LF].)