Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
Original table alignment retained · Scroll horizontally if needed
HN24 CHECK THE VACUUM SUPPLY HOSE FROM THE VACUUM PUMP TO THE TURBOCHARGER WASTEGATE ACTUATOR
• Disconnect the vacuum supply hose from the inlet of the turbocharger wastegate regulating valve solenoid.
• Disconnect the vacuum control hose from the outlet of the turbocharger wastegate regulating valve solenoid.
• Using a suitable adaptor, connect the vacuum supply hose to the vacuum control hose.
• Disconnect the turbocharger wastegate vacuum supply hose from the vacuum pump.
• Using the DSL ENG Pressure Test Kit 014-00761 or equivalent, apply 33.86 kPa (10 in-hg) of vacuum to the vacuum supply hose.
Does each turbocharger wastegate actuator linkage move from the starting position and does the vacuum remain steady?
Yes | No |
|---|---|
INSTALL a new Turbocharger Wastegate Regulating Valve solenoid. REFER to the Workshop Manual Section 303- 04, Fuel Charging and Controls, Turbocharger. Clear the PCM DTCs. REPEAT the self-test. | A vacuum system leak or restriction is the cause of the concern. DIAGNOSE the turbocharger wastegate vacuum system leak or restriction. REPAIR as necessary. Clear the PCM DTCs. REPEAT the self-test. |
HN25 CHECK THE TURBOCHARGER WASTEGATE ACTUATOR LINKAGE FOR DAMAGE OR OBSTRUCTIONS
• Attempt to manually activate the suspect actuator.
Can the suspect actuator be activated manually?
Yes | No |
|---|---|
INSTALL a new turbocharger wastegate actuator. REFER to the Workshop Manual Section 303-04, Fuel Charging and Controls, Turbocharger. Clear the PCM DTCs. REPEAT the self-test. | Visually inspect the suspect turbocharger wastegate actuator linkage for damage or obstructions. Repair as necessary. If no turbocharger wastegate actuator linkage concerns are present, INSTALL a new turbocharger assembly. REFER to the Workshop Manual Section 303-04, Fuel Charging and Controls, Turbocharger. Clear the PCM DTCs. REPEAT the self-test. |
HN26 TURBOCHARGER COMPRESSOR WHEEL CHECK
• Inspect the turbocharger compressor wheel and housing for the following:
◾ ability to spin freely ◾ noise while spinning
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.