Durango 4WD V8-4.7L VIN P Flex Fuel (2007)
Engine Block Heater: Service and Repair
Engine Block Heater - Installation
3.7L/4.7L ENGINE
1. Thoroughly clean cylinder block core hole and block heater seat.
2. Insert block heater assembly with element loop pointing at twelve o'clock.
3. With block heater fully seated, tighten center screw to 2 Nm (17 in. lbs.) torque.
4. Refill cooling system.
5. Start and warm the engine. Check for leaks.