Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 539

6 – 30 TROUBLESHOOTING

Checkpoint

Trouble

Cause

Countermeasure

Center housing oil drain

passage

Restricted

Clean or replace

NG

Continued from the previous page

OK

TROUBLESHOOTING 6 – 31

3) EXCESSIVE OIL CONSUMPTION

Checkpoint

Trouble

Cause

Countermeasure

P.C.V system

Defective

Repair or replace

Excessive pressure

Repair

Crankcase

Leakage

Replace

Turbocharger oil seal

Restricted

Clean or replace

Turbocharger oil drain pipe

Impact damaged

Replace the turbine housing

Impact damage

Replace the compressor

housing and rotating assembly

Oil Pressure

Excessive

Repair

OK

OK

OK

OK

NG

NG

NG

NG

NG

NG

NG

Continued on the next page

Turbine wheel

OK

Compressor wheel

OK

6 – 32 TROUBLESHOOTING

Checkpoint

Trouble

Cause

Countermeasure

Center housing oil drain

passage

Restricted

Clean or replace

NG

Continued from the previous page

OK

TROUBLESHOOTING 6 – 33

4) EXCESSIVE TURBOCHARGER NOISE

Checkpoint

Trouble

Cause

Countermeasure

Intake and exhaust system

joints

Loose

Repair

Damaged

Repair

Intake and exhaust system

gaskets

Rough rotation

Replace

Turbocharger rotating parts

Rubbing against housing

Repair or replace

Compressor wheel

Damaged

Replace

Rubbing against housing

Repair or replace

Damaged

Replace

OK

OK

OK

NG

NG

NG

NG

NG

NG

NG

Continued on the next page

Turbine wheel

OK