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