Symptom Chart: Turbocharger
WARNING: This page is about a different variant/trim than selected.
Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to Service Information for information regarding Ford-specific diagnostic practices.
NOTE:
This service information provides mechanical diagnosis of the turbocharger assembly. If there is a MIL illuminated, or DTCs are present, these should be diagnosed prior to performing turbocharger mechanical diagnosis. Refer to the ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID)
.
Verify the customer concern and then inspect the components of the entire turbocharger system for obvious signs of damage or other mechanical concerns using the following chart.
Symptom Chart: Turbocharger
| Mechanical |
|---|
| Oil inlet pipe and connection Oil outlet pipe and connection Compressor housing inlet circuit and piping Compressor housing outlet circuit and piping Turbine housing inlet circuit and piping Turbine housing outlet circuit and piping Turbocharger actuator tubing or linkage Wastegate actuator rod |
If the concern(s) remains after the inspection, GO to Symptom Chart below. If a driveability condition still exists, refer to the ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID)
Symptom Chart: Turbocharger
| Condition | Possible Sources | Actions |
|---|---|---|
| Loss of power/performance | Clogged ACL element | INSTALL a new ACL element. REFER to Intake Air Distribution and 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. | |
| Malfunctioning fuel system | REFER to the ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID) . | |
| Poor fuel quality | DRAIN and FILL with fresh fuel. | |
| Engine wear (piston rings, valve guides) | REPAIR as required. | |
| Turbocharger turbine or compressor wheel damage | INSPECT the turbocharger. Refer to Turbocharger . | |
| Damaged exhaust or exhaust leaks at turbocharger housing or exhaust manifolds | INSPECT for leaks. Leaks can usually be detected audibly or visually, by a discoloration caused by escaping hot exhaust gases. REPAIR as required. | |
| Malfunctioning turbocharger bypass valve | REFER to the ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID) . | |
| Obstructed wastegate actuator linkage | INSPECT the suspect turbocharger wastegate linkage for obstruction. REPAIR as necessary. | |
| Damaged wastegate actuator linkage | INSPECT the suspect turbocharger wastegate linkage for damage. INSTALL a new turbocharger. | |
| Wastegate actuator operation | TEST the wastegate actuator operation. REFER to the ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID) . | |
| PCM - DTCs. | REFER to the ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID) . | |
| Excessive oil consumption | Incorrect type or grade of oil | DRAIN and FILL with specified oil. |
| Oil in the cylinder head to turbocharger flange | REPAIR as required. | |
| Clogged ACL element | INSTALL a new ACL element. REFER to Intake Air Distribution and Filtering . TEST the system for normal operation. | |
| Blocked or restricted turbocharger oil drain pipe | INSPECT the turbocharger oil drain pipe. REPAIR as necessary. | |
| Damaged or collapsed air intake hoses and tubes | TIGHTEN hose clamps. INSPECT for damage and REPAIR as necessary. | |
| Damaged exhaust or exhaust leaks at turbocharger housing or exhaust manifold | INSPECT for leaks. Leaks can usually be detected audibly or visually, by a discoloration caused by escaping hot exhaust gases. REPAIR as required. | |
| Turbocharger oil seals leaking | Refer to Turbocharger . | |
| Damaged crankcase ventilation system | Visually INSPECT the crankcase ventilation system. | |
| Excessive noise | Turbocharger compressor air intake pipe leaking | REPAIR or INSTALL a new pipe as required. |
| Loose connections or damage to air intake hoses and tubes | TIGHTEN hose clamps. INSPECT for damage and REPAIR as necessary. | |
| Air leaks at turbine housing, blown joints or damaged exhaust | INSPECT for leaks. Leaks can usually be detected audibly or visually, by a discoloration caused by escaping hot exhaust gases. REPAIR as required. | |
| Carbon build up in the turbine housing causing contact with turbine wheel | INSPECT the turbocharger. Refer to Turbocharger . | |
| Turbocharger imbalance due to foreign object/damage | REPAIR as required. | |
| Turbine bearing failure | INSPECT the turbocharger. Refer to Turbocharger . | |
| Change to the wastegate nut location | INSPECT the turbocharger paint mark location. If the paint marks are not aligned, INSTALL a new turbocharger. | |
| Inoperative turbocharger bypass valve | REFER to the ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID) . | |
| Engine emits excessive smoke (black/blue/white) | Clogged ACL element. | INSTALL a new ACL element. REFER to Intake Air Distribution and Filtering . TEST the system for normal operation. |
| Incorrect type or grade of oil | DRAIN and FILL with specified oil. | |
| Blocked or restricted turbocharger oil drain pipe | INSPECT the turbocharger oil drain pipe. REPAIR as necessary. | |
| Damaged/restricted or leaking turbocharger compressor air intake pipe | REPAIR or INSTALL a new pipe as required. | |
| Engine wear (piston rings, valve guides) | REPAIR as required. | |
| Plugged crankcase ventilation system | Visually INSPECT the crankcase ventilation system. | |
| Turbocharger oil seals leaking | Refer to Turbocharger . | |