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NO.16 HIGH OIL CONSUMPTION/LEAKAGE [L3 Turbo]

id0103b4802200

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 • Seal leakage at the compressor or turbine end of turbocharger (indicated by oil in housing on wheel) • Oil leakage

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 | Verify the following: • Proper dipstick • Proper engine viscosity • Engine oil level Are all items normal? | Yes | Go to the next step.
No | Service if necessary. Repeat Step 2.
3 | Inspect the oil leakage from outside of the engine. Is there any oil leakage found? | Yes | Repair or replace oil leakage part.
No | Go to the next step.
4 | Remove the parts to necessary to inspect turbocharger without remove the turbocharger. Visually inspect for the oil leakage inside turbocharger compressor and turbine housing. Is any engine oil found inside turbocharger compressor or turbine housing? | Yes | Excessive amount of oil is found: Replace the turbocharger. Small amount of oil is found: Wipe oil out of vehicle, then go to the next step.
No | Go to the next step.
5 | Is any engine oil found around oil pipes attached on turbocharger center housing? | Yes | If oil leaks from damaged pipe, replace oil pipe. Install the removed parts at Step 4.
No | Inspect internal engine parts such as valves, valve guides, valve stem seals, cylinder head drain passage, and piston rings. Then install the removed parts at Step 4.
6 | Verify test results. • If normal, return to the diagnostic index to service any additional symptoms. • If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the repair or diagnosis. - If the vehicle is repaired, troubleshooting is completed. - If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later calibration is available. Retest.