Cooling System - Coolant Leaks From The Reservoir
TSB 09-11-1206/15/09
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)
4. Make sure the J clips in the upper radiator mounting boss sit flush. (Figure 2)
5. Install the updated coolant expansion tank.
6. Use the new bolt fasteners.
7. Torque to 43 lb-in (4.8 N.m).
8. Connect the coolant overflow hose.
9. Verify proper coolant level.
Parts Block
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.
OPERATION DESCRIPTION TIME
091112A 2006-2009 Explorer, 0.4 Hr.
Mountaineer, 2007-2009
Explorer Sport Trac:
Replace Coolant
Expansion Tank(Do Not
Use With 8080A)
DEALER CODING
CONDITION
BASIC PART NO. CODE
8A080 01
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