RAM 1500 Truck 2WD V6-3.9L VIN X (1999)
Engine Block Heater: Service and Repair
BLOCK HEATER-GASOLINE ENGINES
WARNING: DO NOT REMOVE THE CYLINDER BLOCK DRAIN PLUGS OR LOOSEN THE RADIATOR DRAINCOCK WITH THE
SYSTEM HOT AND UNDER PRESSURE. SERIOUS BURNS FROM COOLANT CAN OCCUR.
REMOVAL
1. Disconnect battery negative cable.
2. Drain coolant from radiator and cylinder block.
Block Heater-3.9L/5.2L/5.9L Gasoline Engine
Block Heater-8.0L V-10 Engine
3. Remove power cord from heater by unplugging.
4. Loosen (but do not completely remove) the screw at center of block heater.
5. Remove block heater by carefully prying from side-to-side. Note direction of heating element coil (up or down). Element coil must be installed
correctly to prevent damage.
INSTALLATION
1. Clean and inspect the block heater hole.
2. Install new O-ring seal(s) to heater in gasoline engines.
