NO.16 HIGH OIL CONSUMPTION/LEAKAGE [L3]


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


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 items normal?	Yes	Inspect internal engine parts such as the valves, the valve guides, the valve stem seals, the cylinder head drain passage, and the 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. • If malfunction remains, replace PCM.