Inspection and Verification

NOTE: This article 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.

For a PCM DTC, REFER to: Electronic Engine Controls . For drive ability symptoms without a DTC, 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
Air cleaner elements Air cleaner outlet pipes Air cleaner intake pipes Charge air coolers Charge air cooler intake pipes Charge air cooler outlet pipes Coolant leaks Oil leaks Turbocharger coolant tubes Turbocharger housings Turbocharger intake pipes Turbocharger oil tubes Turbocharger wastegate control actuators Turbocharger wastegate control actuator linkages Wastegate valves	Electrical connector(s) Powertrain control module Wastegate control valve solenoids Wiring harness(es)

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.