2500 4x2 Pickup L6-359 5.9L DSL Turbo (1994)
Engine Block Heater: Service and Repair
WARNING: Wait until the temperature is below 50°C [120°F] before removing the coolant system pressure cap. Failure to do so can cause personal
injury from heated coolant spray.
Drain the coolant system by opening the drain valve on the radiator. A drain pan with a capacity of 20 liters [5 U.S. gallons] will be adequate to hold the
coolant.
Disconnect the block heater electrical cord.
Loosen the block heater screw and remove the block heater from the block.
