Installation
5.7L/6.1L ENGINE
1. Position heater tubes into water pump housing.
2. Install mounting bolts. Tighten bolts to 10 Nm (88 in. lbs.).
3. Install heater hose onto heater tubes.
4. Install intake manifold.
5. Connect negative battery cable.
6. Fill cooling system.
7. Start vehicle and check for cooling system leaks.