Explorer Sport Trac 4WD V6-4.0L VIN E (2007)
Coolant Reservoir: All Technical Service Bulletins
Cooling System - Coolant Leaks From The Reservoir
TSB 09-11-12
06/15/09
COOLANT EXPANSION TANK LEAKS - 4.0L ENGINE
FORD:
2006-2009 Explorer
2007-2009 Explorer Sport Trac
MERCURY:
2006-2009 Mountaineer
ISSUE
Some 2006-2009 Explorer, Mountaineer and 2007-2009 Explorer Sport Trac vehicles equipped with 4.0L engine may experience coolant leaking from
the coolant expansion tank. This may be due to cracks that develop in the coolant expansion tank at the radiator mounting bolt locations.
ACTION
Replace the coolant expansion tank. Follow the service procedure steps to correct the condition.
SERVICE PROCEDURE
1. Allow the engine to cool before removing the coolant expansion tank.
2. Disconnect the coolant overflow hose.
3. Remove the bolts and the coolant expansion tank. (Figure 1)