Inspection and Verification
NOTE:
This service information provides mechanical diagnosis of the turbocharger assembly. If there is a MIL illuminated, or a DTC is present, these should be diagnosed prior to performing turbocharger mechanical diagnosis.
- 1.
For a PCM DTC, REFER to: Electronic Engine Controls For driveability symptoms without a DTC, Refer to Engine Controls - Symptom Charts (Except Diesel & Hybrid)
Visual Inspection Chart
| Mechanical | Electrical |
|---|---|
| Air Cleaner (ACL) element Air Cleaner (ACL) outlet pipe Air Cleaner (ACL) intake pipe CAC (charge air cooler) CAC (charge air cooler) intake pipe CAC (charge air cooler) outlet pipe Coolant leak(s) Oil leak(s) Turbocharger coolant return tube Turbocharger coolant supply tube Turbocharger housing Turbocharger intake tube Turbocharger oil return tube Turbocharger oil supply tube Wastegate actuator Wastegate actuator vacuum hose(s) Wastegate valve |
Electrical connector(s) PCM (powertrain control module) Turbocharger wastegate regulating valve control solenoid Turbocharger bypass valve control solenoid Wiring harness(es) |