Draining

WARNING: Never remove the pressure relief cap/radiator cap under any conditions while the engine is operating. Failure to follow these instructions could result in damage to the cooling system or engine and/or personal injury. To avoid having scalding hot coolant or steam blow out of the cooling system, use extreme care when removing the pressure relief cap from a hot degas bottle or the radiator cap from the radiator. Wait until the engine has cooled, then wrap a thick cloth around the pressure relief cap and turn it slowly one turn (counterclockwise) or with a thick cloth around the radiator cap turn the radiator cap (counterclockwise) slowly to the first pressure stop. Step back while the pressure is released from the cooling system. When certain all the pressure has been released, remove the pressure relief cap/radiator cap (still with a cloth).

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.

NOTE: About 80% of coolant capacity can be recovered with the engine in the vehicle. Dirty, rusty or contaminated coolant should be drained and filled with new coolant.

1. Release the pressure in the cooling system by slowly turning the pressure relief cap one half turn counterclockwise or the radiator cap counterclockwise to the first stop. When the pressure is released, remove the pressure relief cap/radiator cap.
2. Place a suitable container below the radiator draincock. If equipped disconnect the coolant return hose at the fluid cooler. Drain the engine coolant.
- Close the radiator draincock.





3. Remove the cylinder drain plug, if equipped, to drain the coolant from the cylinder block. Install and tighten the drain plug.