RAM 3500 HD Truck 2WD L6-6.7L DSL Turbo (2008)
Fuel Supply Line: Service and Repair
Removal
REMOVAL
CAUTION: Cleanliness cannot be overemphasized when handling or replacing diesel fuel system components. This especially includes the fuel
injectors, high-pressure fuel lines and fuel injection pump. Very tight tolerances are used with these parts. Dirt contamination could cause
rapid part wear and possible plugging of fuel injector nozzle tip holes. This in turn could lead to possible engine misfire. Always wash/clean any
fuel system component thoroughly before disassembly and then air dry. Cap or cover any open part after disassembly. Before assembly,
examine each part for dirt, grease or other contaminants and clean if necessary. When installing new parts, lubricate them with clean engine oil
or clean diesel fuel only.
If removing fuel line at either No. 1 or No. 2 cylinder, the air inlet housing/EGR valve assembly must first be removed from the top of the intake
manifold.
1. Disconnect both negative battery cables from both batteries. Cover and isolate ends of cables.
2. Thoroughly clean fuel lines at both ends.
CAUTION: When loosening or tightening high-pressure lines attached to a separate fitting (11), use a back-up wrench on fitting (12). Do
not allow fittings (12) to rotate. Damage to both fuel line and fitting will result.
3. If removing fuel line at # 6 cylinder, a bracket (4) is located above fuel line connection at cylinder head. Two bolts (3) secure this bracket to rear
of cylinder head. The upper bolt hole is slotted. Loosen (but do not remove) these two bracket bolts. Tilt bracket down to gain access to # 6 fuel
line connection.
4. If removing fuel line at either #1 or #2 cylinder, the air inlet housing/EGR assembly must first be removed from top of intake manifold.
5. Place shop towels around fuel lines at fuel rail and injectors. If possible, do not allow fuel to drip down side of engine.
6. Carefully remove each fuel line from engine. Note position of each while removing. Do not bend lines while removing.
