Radiator Drain Plug: Service and Repair

Radiator Drain Cock Replacement

Warning

With a pressurized cooling system, the coolant temperature in the radiator can be considerably higher than the boiling point of the solution at atmospheric pressure. Removal of the surge tank cap, while the cooling system is hot and under high pressure, causes the solution to boil instantaneously with explosive force. This will cause the solution to spew out over the engine, the fenders, and the person removing the cap. Serious bodily injury may result.

Removal Procedure

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
2. Place a drain pan under the right side lower radiator mount.




3. Remove the radiator drain cock.

Installation Procedure




1. Install the radiator drain cock. Tighten the radiator drain cock by hand only.
2. Lower the vehicle.
3. Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill LE5, L61) (Cooling System Draining and Filling (Static Fill))Cooling System Draining and Filling (Static Fill LNF) (Cooling System Draining and Filling (Static Fill))Cooling System Draining and Filling (GE 47716 Fill) (Cooling System Draining and Filling (GE 47716 Fill)).