Durango 4WD V8-5.9L VIN Z (1998)
Engine Block Heater: Service and Repair
REMOVAL
1. Disconnect battery negative cable.
2. Drain coolant from radiator and cylinder block. Refer to Cooling System Draining and Filling.
Block Heater Removal/Installation
3. Remove power cord from block heater.
4. Loosen screw at center of block heater. Remove heater assembly.
INSTALLATION
1. Thoroughly clean cylinder block core hole and block heater seat.
2. Insert block heater assembly with element loop pointing down.
3. With block heater fully seated, tighten center screw to 2 Nm (17 inch lbs.) torque.
4. Fill cooling system with recommended coolant. Refer to Cooling System-Draining and Filling.
5. Start and warm the engine. Check for leaks.
