Component Tests and General Diagnostics

TURBOCHARGER INSPECTION [BP WITH TC]

Compressor Wheel Inspection
1. Remove the air hose No.4. (engine compartment). (See INTAKE-AIR SYSTEM REMOVAL/ INSTALLATION [BP WITH TC].)




2. Visually inspect the compressor wheel from view A for the cracks, damage, or bending on all the compressor wheel blades.
- If there are any cracks or damage, replace the turbocharger,

NOTE:
- It is easier to inspect the compressor wheel by inserting a mirror at the position shown in the figure and illuminating the area using a pen light.
- If there is contact between the compressor wheel and compressor housing, there may be cracks, damage, or bending on the blade end area.
- If there are cracks, damage, or bending on the compressor wheel, verify the following after replacing the turbocharger.
- Intake air/exhaust system related components
- Oil pipe damage

Turbine wheel inspection
1. Remove the joint pipe. (See TURBOCHARGER REMOVAL/INSTALLATION [BP WITH TC].)




2. Visually inspect the turbine wheel from view B for the cracks, damage, or bending on all the turbine wheel blades.
- If there are cracks, damage, or bending on the turbine wheel, replace the turbocharger.

NOTE:
- It is easier to inspect the compressor wheel by inserting a mirror at the position shown in the figure and illuminating the area using a pen light.
- If there is contact between the turbine wheel and turbine housing, there may be cracks, damage, or bending on the blade end area.
- If there are cracks, damage, or bending on the turbine wheel, verify the following after replacing the turbocharger.
- Intake air/exhaust system related components
- Oil pipe damage