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NO.16 HIGH OIL CONSUMPTION/LEAKAGE [WITH WU-TWC]

id0103008022c5

16 | HIGH OIL CONSUMPTION/LEAKAGE
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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
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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 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 the test results. • If normal, return to the diagnostic index to service any additional symptoms. • If the malfunction remains, inspect related Service information and perform repair or diagnosis. - If the vehicle is repaired, the troubleshooting is completed. - If the vehicle is not repaired or additional diagnostic information is not available, replace the PCM.