Thermostat Housing

3.7L – Block Heater – Coolant Leak From The Thermostat Housing – 2015-2019 Ford Transit

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2019 Ford Transit

NHTSA ID Number: 10203655 Manufacturer Communication Number: TSB 21-2408   Summary Some 2015-2019 Transit vehicles equipped with a 3.7L engine and block heater may exhibit a repeat coolant leak from a deteriorated O-ring and/or intake manifold thermostat housing. This may be due to the block heater in the thermostat housing. To correct the condition, install a block … Read more

3.5L EcoBoost/3.5L PowerBoost – Coolant Leak Near Thermostat Housing – 2021 Ford F-150

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2021 Ford F-150

NHTSA ID Number: 10202860 Manufacturer Communication Number: TSB 21-2373 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 … Read more