External loss of coolant
Ford technical service bulletin TSB 21-2373 for 2021 Ford F-150.
- Bulletin number
- TSB 21-2373
- Component
- Engine and engine cooling
- Summary
- Some 2021 F-150 vehicles equipped with equipped with a 3.5L EcoBoost or 3.5L PowerBoost and built on or before 31-Mar-2021 may experience an external loss of coolant. This may be due to a leak in the degas bottle hose between the degas bottle and thermostat housing. To correct the condition, follow the Service Procedure to inspect and replace the left degas bottle hose between the degas bottle and thermostat housing.
Owners of these vehicles have filed 102 complaints in the engine category.
Vehicles covered
- Ford F-150 2021 2021
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