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April 15, 2024 Service bulletin

Some 2020-2024 F-150 and 2021-2024 Bronco vehicles equipped with a 2.7L or 3.0L EcoBoost engine may...

Ford technical service bulletin SSM 52447 for 2020-2024 Ford F-150 and 2021-2024 Ford Bronco.

Bulletin number
SSM 52447
Component
Engine and engine cooling
Summary
Some 2020-2024 F-150 and 2021-2024 Bronco vehicles equipped with a 2.7L or 3.0L EcoBoost engine may exhibit a ticking/tapping or rattle type noise from the top front cover area of the engine on initial start-up after a cold soak of 6 hours or more that may last for 2-5 seconds. This may be due to a stuck internal component of the variable cam timing (VCT) unit. To correct the condition, replace all 4 of the VCT units following Workshop Manual (WSM), Section 303-01. For claiming, use causal part 6C525 and applicable labor operations in Section 6 of the Service Labor Time Standards (SLTS) Manual. If labor times are not available, claim M-time.

Owners of these vehicles have filed 483 complaints in the engine category.

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