Symptom Chart

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible Sources	Action
No boost/low boost/lack of power	Restriction upstream of the turbocharger compressor	REMOVE the restriction.
	Turbocharger compressor air intake hoses leaking	REPAIR or INSTALL a new hose or clamps as required.
	Damaged Charge Air Cooler (CAC)	INSTALL a new CAC. REFER to INTAKE AIR DISTRIBUTION & FILTERING . TEST the system for normal operation.
	Partially blocked CAC (engine oil)	REPAIR or INSTALL a new CAC. REFER to INTAKE AIR DISTRIBUTION & FILTERING . TEST the system for normal operation.
	Loose connections or damage to air intake hoses and tubes	TIGHTEN the hose clamps. INSPECT for damage and REPAIR as necessary.
	Turbocharger turbine or compressor wheel damage	INSTALL a new turbocharger. REFER to Turbocharger . TEST the system for normal operation.
	Turbocharger bearings seized	INSTALL a new turbocharger. REFER to Turbocharger . TEST the system for normal operation.
	Exhaust leak between manifold and turbine housing	REPAIR as required.
	Low compression	REPAIR as required.
	Turbocharger actuator not functioning.	REFER to the INTRODUCTION - DIESEL MODELS .
	Restricted flow through the EGR coolers due to coolant intrusion	REMOVE the Exhaust Gas Recirculation Temperature (EGRT) cooler outlet temperature sensor and INSPECT for signs of coolant. If coolant is present, REMOVE the EGR cooler and pressure test. REFER to ENGINE EMISSION CONTROL . INSPECT for blockage or coolant intrusion. REPAIR as necessary.
Excessive oil consumption (blue or gray exhaust smoke)	Incorrect type or grade of oil Excessive oil level	DRAIN and FILL with specified oil.
	Extended oil change intervals	CHANGE oil as recommended.
	Clogged Air Cleaner (ACL) element	INSTALL a new ACL element. REFER to INTAKE AIR DISTRIBUTION & FILTERING . TEST the system for normal operation.
	Restriction upstream of the turbocharger compressor	REMOVE the restriction. INSPECT the closed crankcase ventilation (CCV) system. REPAIR as necessary.
	Turbocharger oil seals leaking	INSTALL a new turbocharger. REFER to Turbocharger . TEST the system for normal operation.
	Turbocharger oil tube or fittings leaking	REPAIR as required.
	Turbocharger top oil plug leaking	REPAIR as required.
	Turbocharger actuator oil leak	INSTALL a new turbocharger actuator. REFER to ELECTRONIC ENGINE CONTROLS - DIESEL ENGINES . TEST the system for normal operation.
	Turbocharger-to-pedestal gasket failure	INSTALL a new turbocharger-to-pedestal gasket. REFER to the Disassembly and Assembly of the Turbocharger . TEST the system for normal operation.
	Restricted breather system	INSPECT the breather system. REPAIR as necessary.
Excessive coolant consumption (white exhaust smoke) or leaks	Turbocharger coolant tube or fittings leaking	REPAIR as required.
	Turbocharger side cup plug failure	INSTALL a new turbocharger. REFER to Turbocharger . TEST the system for normal operation.
	Turbocharger-to-pedestal gasket failure	INSTALL a new turbocharger-to-pedestal gasket. REFER to the Disassembly and Assembly of the Turbocharger . TEST the system for normal operation.
Noise or vibration	Loose connections or damage to air intake hoses and tubes	TIGHTEN hose clamps. INSPECT for damage and REPAIR as necessary.
	Air leaks at intake manifold or CAC	REPAIR as required.
	Leaks at turbocharger inlet and outlet connections	REPAIR as required.
	Exhaust leaks at turbocharger housing, exhaust manifolds, turbocharger inlet pipes	INSPECT for leaks. Leaks can usually be detected audibly or visually, by a discoloration caused by escaping hot exhaust gases. REPAIR as required.
	Turbine bearing failure	INSTALL a new turbocharger. REFER to Turbocharger . TEST the system for normal operation.
	Turbocharger compressor housing seals	INSTALL a new turbocharger. REFER to Turbocharger . TEST the system for normal operation.
High boost	Leak in exhaust system before Diesel Particulate Filter (DPF)	REPAIR as required.