RAM 2500 Truck 4WD L6-5.9L DSL Turbo VIN 7 (2001)
Fig. 15 Inspecting Injector Operation
2. Note RPM drop for each cylinder. As an alternative, loosen high-pressure fuel line fitting at fuel injector connector tube (Fig. 15). Listen for a
change in engine speed. After testing, tighten line fitting to 40 Nm (30 ft. lbs.) torque. If engine speed drops, injector was operating normally. If
engine speed remains same, injector may be malfunctioning. Test all injectors in same manner one at a time.
3. Once injector has been found to be malfunctioning, remove it from engine and test it. Refer to Fuel Injector Removal/Installation.
WARNING: FUEL INJECTOR TESTERS CAN DEVELOP EXTREMELY HIGH PRESSURES. FUEL UNDER THIS AMOUNT OF
PRESSURE CAN PENETRATE SKIN AND CAUSE PERSONAL INJURY. WEAR SAFETY GOGGLES AND ADEQUATE
PROTECTIVE CLOTHING. AVOID CONTACT WITH FUEL SPRAY WHEN OPERATING INJECTOR TESTER.
Fig. 16 Fuel
