Insufficient power Inoperative or damaged Refer to the appropriate section in Group
ignition system 303 for the procedure. Refer to Powertrain Air intake system blockage Control/Emissions Diagnosis (PC/ED) Lubrication system blockage manual.
Inoperative or damaged fuel system
Turbocharger turbine or INSPECT the turbocharger. REFER to the compressor wheel damage Check for Free Rotation— Off Vehicle.
REFER to: Turbocharger (303-04E Fuel Charging and Controls - Turbocharger - 2.3L EcoBoost (231kW/314PS), Diagnosis and Testing). TEST the system for normal operation after the repair.
Damaged exhaust or INSPECT for leaks. Leaks can be detected exhaust leaks at audibility or visually, by a discoloration turbocharger housing or caused by escaping hot exhaust gases. exhaust manifold REPAIR as necessary. TEST the system for
normal operation after the repair.
Malfunctioning turbocharger Refer to Powertrain Control/Emissions bypass valve Diagnosis (PC/ED) manual.
Oil level too high DRAIN oil to correct level.
Incorrect engine oil INSTALL correct specification engine oil.
TEST the system for normal operation after the repair.
Excessive accessory drive Refer to the appropriate section in Group belt loading 303 for the procedure. Inoperative or damaged cooling system
Fail-safe cooling invoked (if Refer to Powertrain Control/Emissions equipped) Diagnosis (PC/ED) manual.
Damaged or plugged INSPECT exhaust system. TEST the system exhaust system for normal operation after the repair.
Incorrect tire size
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
Dragging brakes
REFER to: Brake System (206-00 Brake System - General Information, Diagnosis and Testing).
Slipping transmission Refer to the appropriate section in Group
307 for the procedure.
Slipping clutch Refer to the appropriate section in Group
308 for the procedure.
Incorrect valve clearance ADJUST valve clearance. Refer to the
appropriate section in Group 303 for the procedure. TEST the system for normal operation after the repair.
Worn or damaged valve INSTALL a new valve tappet. TEST the
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