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TSB Document:

Affected Component: ENGINE AND ENGINE COOLING

Summary
In some of the affected vehicles, an undesirable noise may develop from the cam phasers in the 3.5L GTDI engine. This noise might occur as a rattle when starting the engine after the vehicle was turned off for an extended period of time or as a knocking noise when the engine is idling after it is warmed up. These concerns should be addressed by the updated calibration provided in FSA 21B10. However, for peace of mind, Ford is providing an extended warranty for customers who receive the PCM update under program 21B10 prior to December 21, 2021 and continue to experience cam phaser noise after receiving that PCM update.

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Date Published
JUL 31, 2021
NHTSA TSB #
10201090
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