Some 2014-2019 Fusion and 2017-2019 Escape equipped with 1.5L Ecoboost engine may exhibit coolant consumption and white smoke concern. Follow the Cooling System Pressure Test procedure in WSM, Section 303-03, pressurize the cooling system to 138kPa(20 psi0 and hold for 5 hours. If cooling system pressure drops 27.57kPa(4psi) after 5 hours and internal engine coolant loss is confirmed, further investigation of the engine block surface to head gasket interface is required. Carefully inspect engine block cylinders and cylinder bore bridges for erosion, pitting, and flatness. If defects with the cylinder block surface are identified, follow WSM, Section 303-01A procedures for repairs. Complete cost cap as needed to determine the most cost effective repair. Ford has found that all returned cylinder heads pass inspection and may have been reused.