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SSM 52335 - 2015-2024 Various Vehicles - Oil Leak - Turbocharger Oil Feed And Drain Tube Replacement
For 2015-2024 Ford and Lincoln vehicles equipped with turbocharged engines and customer concern of an engine oil leak, refer to Workshop Manual (WSM), Section 303-00 for oil leak inspection and testing methods. Ford has evaluated turbochargers replaced for oil leak symptoms and although oil may collect on the external surface of a turbocharger, it is extremely rare for a turbocharger assembly to be the root cause of the oil leak. Careful inspection of the turbocharger oil feed and drain tubes should be performed along with the recommended WSM procedures as needed. Warranty claims for turbocharger replacement going forward will be assessed.
Supplemental diagnostic procedure from Expedition/Navigator Workshop Manuals (with 2015-2017 component illustrations added)...
PINPOINT TEST - EXTERNAL OIL LEAKS
For 2015-2024 Ford and Lincoln vehicles equipped with turbocharged engines and customer concern of an engine oil leak, refer to Workshop Manual (WSM), Section 303-00 for oil leak inspection and testing methods. Ford has evaluated turbochargers replaced for oil leak symptoms and although oil may collect on the external surface of a turbocharger, it is extremely rare for a turbocharger assembly to be the root cause of the oil leak. Careful inspection of the turbocharger oil feed and drain tubes should be performed along with the recommended WSM procedures as needed. Warranty claims for turbocharger replacement going forward will be assessed.
Supplemental diagnostic procedure from Expedition/Navigator Workshop Manuals (with 2015-2017 component illustrations added)...
PINPOINT TEST - EXTERNAL OIL LEAKS
Introduction Possible Causes
NOTE: It is very unlikely for the turbocharger to leak engine oil externally. The moving parts of a turbocharger that require oil are contained in a housing with no external sealing surfaces. Pressurized engine oil is supplied to the turbocharger from the engine through an oil supply tube and drains back to the engine sump through an unpressurized return tube. The most likely source of an external oil leak would be from the oil supply or oil return tubes or the gaskets and seals. | |||||
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