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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 792 (Engine Cooling System - F250-F550) >> General Procedures >> Cooling System Draining, Filling and Bleeding >> Draining

Cooling System Draining, Filling and Bleeding: Draining

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
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.
CAUTION: Always fill the cooling system with the same type of coolant that was drained from the system. Do not mix coolant types. Failure to follow these instructions may result in damage to the cooling system.
CAUTION: The coolant must be recovered in a suitable, clean container for reuse. If the coolant is contaminated, it must be recycled or disposed of correctly and the system filled with new coolant. Failure to follow these instructions may result in damage to the cooling system.
NOTE: Less than 80% of coolant capacity can be recovered with the engine in the vehicle. Dirty, rusty or contaminated coolant requires replacement.
  1. Place a suitable container below the radiator draincock. If equipped, disconnect the coolant return hose at the fluid cooler.
  2. Remove the pressure relief cap from the degas bottle.
  3. Open the radiator draincock and drain the coolant into a suitable container.
  4. Close the radiator draincock when finished.