Inspection and Verification
NOTE:
This service information 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 .
MIL Code List. For driveability symptoms without Diagnostic Trouble Codes (DTCs), Refer to ENGINE CONTROLS - SYMPTOM CHARTS (EXCEPT DIESEL & HYBRID) (SECTION 3) .
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.VISUAL INSPECTION
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 tube
- Wiring harness(es)
- Electrical connector(s)
- Turbocharger control valve
- 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.