NO.15 HIGH OIL CONSUMPTION/LEAKAGE [F2]

NO.15 HIGH OIL CONSUMPTION/LEAKAGE [F2]

id010394850800

15

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.
1	Remove and shake the PCV valve. Does the PCV valve rattle?	No	Replace the PCV valve.
2	Inspect for the following: • External leakage • Proper dipstick • Proper engine oil viscosity Are all the items normal?	Yes	Inspect the internal engine parts such as valves, valve guides, valve stem seals, cylinder head drain passage, and piston rings.
2		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 [F2].) ― 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 [F2].)