H2 V8-6.2L (2008)
Engine Block Heater: Service and Repair
Coolant Heater Replacement
Coolant Heater Replacement
Dealer Installation Only
1. Drain the cooling system/engine block. Refer to Cooling System Draining and Filling (Static Fill) (See: Cooling System/Service and
Repair/Draining and Filling Cooling System)Cooling System Draining and Filling (Vac-N-Fill) (See: Cooling System/Service and
Repair/Draining and Filling Cooling System) .
2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle (See: Maintenance) .
3. Remove the oil cooler hose bracket bolt (1).
4. Remove the oil cooler hose adapter bolts (2).
5. Remove and discard the oil cooler hose adapter gasket.
6. Position the oil cooler hose adapter end out of the way.
Notice: Refer to Fastener Notice (See: Service Precautions/Vehicle Damage Warnings/Fastener Notice) .
7. Install the coolant heater in place of the drain plug.
Tighten the coolant heater to 50 N.m (37 lb ft).
Important: The engine coolant heater cord must not touch the engine, hot pipes, manifold, or any moving parts. Always keep the
electrical cord neatly rolled up with the end of the cord tucked in the center of the coil and secured in place.
8. Push the engine coolant heater cord electrical connector (2) firmly into the coolant heater (1).
