Express 3500 V8-6.0L (2010)
Engine Block Heater: Service and Repair
Coolant Heater Replacement
Coolant Heater Replacement (V8)
Removal Procedure
1. Drain the cooling system/engine block. Refer to Cooling System Draining and Filling (Static Fill) (See: Cooling System/Service and
Repair/Procedures/Cooling System Draining and Filling (Static Fill)) Cooling System Draining and Filling (Vac N Fill) (See: Cooling
System/Service and Repair/Procedures/Cooling System Draining and Filling (Vac N Fill)).
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (See: Maintenance/Vehicle Lifting/Service and Repair).
3. For vehicles with regular production option (RPO) L76 (6.0L), perform the following steps. Otherwise, proceed to step 8.
4. Remove the oil cooler hose bracket bolt (1), if equipped.
5. Remove the oil cooler hose adapter bolts (2), if equipped.
6. Remove and discard the oil cooler hose adapter gasket, if equipped.
7. Position the oil cooler hose adapter end out of the way, if equipped.
