RAM 3500 HD Truck 2WD L6-6.7L DSL Turbo (2008)
Fuel Supply Line: Testing and Inspection
HIGH-PRESSURE FUEL LINE LEAKS
High-pressure fuel line leaks can cause starting problems and poor engine performance.
WARNING: Due to extreme fuel pressures of up to 180,000 kpa (26,107 psi), use extreme caution when inspecting for high-pressure fuel leaks.
Do not get your hand or a finger near a suspected leak. Inspect for high-pressure fuel leaks with a sheet of cardboard (2) (typical picture). High
fuel injection pressure can cause personal injury if contact is made with the skin.
Start the engine. Move the cardboard (2) over the suspected high-pressure fuel line leak, and check for fuel spray onto the cardboard. If line is leaking,
retorque line while engine is shutdown. Replace damaged, restricted or leaking high-pressure fuel lines with the correct replacement line.
CAUTION: The high-pressure fuel lines must be clamped securely in place in the brace. The lines cannot contact each other or other
components. Do not attempt to weld high-pressure fuel lines or to repair lines that are damaged. Only use the recommended lines when
replacement of high-pressure fuel line is necessary.
NOISE ISOLATORS
Noise isolators (14) are used on the six high-pressure fuel lines. They should be positioned in the middle of the horizontal or longest straight section of
each fuel line. The split on each isolator should be facing downward. Be sure the noise isolator is not touching another isolator or any other components.
