9. Intake/exhaust system
144
Black and white
emissions
Deformed or damaged intake system hose Replace it
Contaminated or damaged air filter
Replace and check if the impeller of the turbo-
charger is damaged
Leakage of coolant from the turbocharger or oil from the
oil hose
Replace the hose and the gasket
Poor turbo actuator operation Replace the turbocharger
Contaminated blowby gas and abnormal oil amount
Check the turbo impeller and the turbo intake
outlet
Large gap of the turbocharger wheel, causing interfer-
ence with the wall
Check if there is any sand or metallic foreign
substance
Damaged turbocharger wheel
Check if there is any sand or metallic foreign
substance
Damaged wheel and shaft of the turbocharger
Check if there is any sand or metallic foreign
substance
Poor rotating force of the turbocharger wheel
Check if there is any sand or metallic foreign
substance
Blue emissions
Leakage from the engine block and the exhaust mani-
fold
Check the engine
Too much fog
Oil leakage to the turbine or compressor Repair or replace it
Worn or damaged seal ring due to worn bearing Repair or replace it
Too much exhaust
emissions
Clogged air filter element Replace or clean it
Clogged air duct Check or repair it
Air leakage from the intake system Check or repair it
The turbocharger cannot rotate because of burning Repair or replace it
A turbine blade or compression wing contacts with the
other one or is damaged
Repair or replace it
Deformed or clogged exhaust system pipe Check or repair it
Phenomenon Causes Troubleshooting
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