Compressor Wheel Inspection

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Remove the air hose No.4.(engine compartment). (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION (BP WITH TC) .)
Visually inspect the compressor wheel from view A for the cracks, damage, or bending on all the compressor wheel blades.

Fig 1: Inspecting Compressor Wheel From View Cracks, Damage, Or Bending On All Compressor Wheel Blades
Courtesy of MAZDA MOTORS CORP.
- 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 Fig 1 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