Turbocharger Rotating Assembly Binding or Dragging
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.
SYMPTOM TROUBLESHOOTING - TURBOCHARGER ROTATING ASSEMBLY BINDING OR DRAGGING
| Possible Causes | Remedies |
|---|---|
| Damaged compressor wheel due to foreign object impact | Clean and repair air intake system as necessary. Replace turbocharger. |
| Damaged turbine wheel due to foreign object impact | Clean and repair engine exhaust system as necessary. Replace turbocharger. |
| Compressor wheel or turbine wheel rubbing on housing (worn bearings, shaft journals, or bearing bores) | Replace turbocharger. |
| Excessive dirt build up in compressor (on housing or wheel) | Clean and repair air intake system as necessary. Clean compressor. Replace turbocharger if damaged. |
| Excessive carbon build-up behind turbine wheel (coked oil or combustion deposits) | Inspect the turbocharger, replace if damaged. |
| Sludge or coked deposits in center housing | Inspect restriction in oil feed and oil drain lines for turbocharger, replace if necessary. Inspect the engine oil condition, replace oil and filter if necessary. Inspect engine oil pressure, repair as necessary. Inspect oil cooler for proper function, replace if damaged or plugged. Replace turbocharger. |