Inspection and Verification
NOTE:
This article provides mechanical diagnosis of the turbocharger assembly. If there is a Malfunction Indicator Lamp (MIL) illuminated, or Diagnostic Trouble Codes (DTCs) are present, these should be diagnosed prior to performing turbocharger mechanical diagnosis.
- For PCM Diagnostic Trouble Codes (DTCs), REFER to: Electronic Engine Controls . For driveability symptoms without Diagnostic Trouble Codes (DTCs), Refer to ENGINE CONTROLS - SYMPTOM CHARTS (EXCEPT DIESEL & HYBRID)
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart
Mechanical Electrical Oil leak(s)
Coolant leak(s)
Wastegate actuator
Wastegate actuator vacuum hose(s)
Wastegate valve
Turbocharger housing
Air Cleaner (ACL) element
Air Cleaner (ACL) outlet pipe
Air Cleaner (ACL) intake pipe
Turbocharger intake tube
Charge Air Cooler (CAC)
Charge Air Cooler (CAC) intake pipe
Charge Air Cooler (CAC) outlet pipe
Turbocharger oil supply tube
Turbocharger oil return tube
Turbocharger coolant supply tube
Turbocharger coolant return tubeWiring harness(es)
Electrical connector(s)
Wastegate control valve solenoid
PCM - If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the concern is not visually evident, verify the symptom and refer to the Diagnostic Tab in the Ford diagnostic equipment.