F 150 2WD V8-4.6L (2008)
Coolant Reservoir: Service and Repair
Degas Bottle
Degas Bottle
Removal and Installation
1. WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the
engine is operating or the cooling system is 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 serious 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 lb-in).
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.