Removal of Fuel Supply Line for 2008 RAM 2500 Truck
Fuel Supply Line: Service and Repair
Installation
INSTALLATION
All high-pressure fuel lines are of the same length and inside diameter. Correct high-pressure fuel line usage and installation is critical to smooth engine
operation.
CAUTION: Anytime a high-pressure line is removed from the engine, its fuel connector nut at the cylinder head must first be retorqued. Refer
to Torque Specifications.
1. Tighten nuts at high pressure injector connector nut at the cylinder head. Torque nut to 50 Nm (37 ft. lbs.).
2. Position and install fuel line support clamp (2) bolts or nut. Tighten finger tight.
3. Position proper fuel line to proper injector on engine. Tighten fittings hand tight at both ends of line.
4. Tighten fuel line at cylinder head. Torque nut to 30 Nm (22 ft. lbs.).
5. Install engine lifting bracket (1) and bolt. Torque nut to 77 Nm (56 ft. lbs.).
6. Tighten fuel lines at fuel rail. Torque nut to 37 Nm (27 ft. lbs.).
7. Tighten clamp support to intake manifold cover. Torque nut to 24 Nm (18 ft. lbs.).
8. If fuel line at either No. 1 or No. 2 cylinder has been replaced, install intake manifold air heater elements to top of intake manifold.
9. If fuel line at No. 6 cylinder has been replaced, tilt metal bracket (shield) upward and tighten 2 bolts at rear of cylinder head. Torque nut to 43 Nm
(32 ft. lbs.).
10. Connect both negative battery cables to both batteries.
11. Prime fuel system.
12. Check lines/fittings for leaks.