NO.16 HIGH OIL CONSUMPTION/LEAKAGE [13B-MSP]

id0103f2802200

16

HIGH OIL CONSUMPTION/LEAKAGE

DESCRIPTION

The oil consumption is excessive.

POSSIBLE CAUSE

•  Air cleaner element malfunction (damage, poor installation)

•  Improper dipstick

•  Improper engine oil viscosity

•  Engine internal parts malfunction

•  Metering oil pump malfunction

•  Improper operation of metering oil pump control system

•  Oil leakage from lubrication system parts and them joints (oil pump, oil filter, oil cooler, housing oil nozzle, manifold oil nozzle etc.)

16	HIGH OIL CONSUMPTION/LEAKAGE
DESCRIPTION	The oil consumption is excessive.
POSSIBLE CAUSE	• Air cleaner element malfunction (damage, poor installation) • Improper dipstick • Improper engine oil viscosity • Engine internal parts malfunction • Metering oil pump malfunction • Improper operation of metering oil pump control system • Oil leakage from lubrication system parts and them joints (oil pump, oil filter, oil cooler, housing oil nozzle, manifold oil nozzle etc.)

Diagnostic procedure

STEP	INSPECTION	RESULTS	ACTION
1	Inspect for the following: • External leakage (lubrication system parts and their joints.) • Proper dipstick • Proper engine oil viscosity • Damaged and/or poor installation of air cleaner element Are all the items normal?	Yes	Go to the next step.
1		No	Service if necessary. Repeat Step 1.
2	Perform the metering oil pump control inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION [13B-MSP].) Does the metering oil pump control properly?	Yes	Overhaul the engine and repair or replace the malfunctioning parts.
2		No	Repair or replace the malfunctioning parts, according to the metering oil pump control inspection results.
3	• Verify test results. ― If normal, return to the diagnostic index to service any additional symptoms. ― If the malfunction remains, inspect the related Service Bulletins and/or the On-line Repair Information and perform the repair or diagnosis.