F 150 4WD V8-4.6L VIN W (2007)
Coolant Reservoir: Service and Repair
Degas Bottle
Removal and Installation
1. WARNING: To avoid personal injury, do not unscrew the coolant pressure relief cap while the engine is operating or hot. The cooling
system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these
instructions may result in personal injury.
Release the pressure in the cooling system by slowly turning the pressure relief cap one half turn counterclockwise. When the pressure is released,
remove the pressure relief cap.
2. Using hose clamp pliers, clamp the coolant return hose.
3. Using a suitable suction device, siphon the coolant from the degas bottle.
4. Release the clamp and disconnect the degas bottle upper hose.
5. Release the clamp and disconnect the coolant return hose.
6. Remove the bolts and the degas bottle.
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To install, tighten to 9 Nm (80 inch lbs.).
7. To install, reverse the removal procedure.
8. Fill the degas bottle. Refer to Cooling System Draining, Filling and Bleeding for the recommended coolant mixture and fill level.