#
NO.16 HIGH OIL CONSUMPTION/LEAKAGE

BHE010300103W18

16 | HIGH OIL CONSUMPTION/LEAKAGE
--- | ---
DESCRIPTION | The oil consumption is excessive.
POSSIBLE CAUSE | • Air cleaner element malfunction (damaged, 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 air cleaner element Are all the items normal? | Yes | Go to the next step.
No | Service if necessary. Repeat Step 1.
2 | Perform the metering oil pump control inspection. (See Metering Oil Pump Control Inspection.) Does the metering oil pump control properly? | Yes | Overhaul the engine and repair or replace the malfunctioning parts. (See Engine Workshop Manual.)
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 Information and perform the repair or diagnosis.