Fuel System Pressures—Diesel Engines; Bleeding High-Pressure Fuel Lines At Injectors - Dodge 2001 Ram 1500 Owner's Manual

14 - 58 FUEL DELIVERY - DIESEL
FUEL DELIVERY - DIESEL (Continued)
WARNING: THE FUEL INJECTION PUMP SUPPLIES
EXTREMELY HIGH FUEL PRESSURE TO EACH INDI-
VIDUAL INJECTOR THROUGH THE HIGH-PRES-
SURE LINES. FUEL UNDER THIS AMOUNT OF
PRESSURE CAN PENETRATE THE SKIN AND
CAUSE PERSONAL INJURY. WEAR SAFETY GOG-
GLES AND ADEQUATE PROTECTIVE CLOTHING
AND AVOID CONTACT WITH FUEL SPRAY WHEN
BLEEDING HIGH-PRESSURE FUEL LINES.
WARNING: ENGINE MAY START WHILE CRANKING
STARTER MOTOR.
Engine may start, may run erratically and be
very noisy for a few minutes. This is a normal
condition.
(9) Thoroughly clean area around injector fittings
where they join injector connector tubes.
(10) Bleed air by loosening high-pressure fuel line
fittings (Fig. 3) at cylinders number 3, 4 and 5.
(11) Continue bleeding injectors until engine runs
smoothly. It may take a few minutes for engine to
run smooth.
(12) Tighten fuel line(s) at injector(s) to 38 N·m
(28 ft. lbs.) torque.
SPECIFICATIONS
FUEL SYSTEM PRESSURES—DIESEL ENGINES
DESCRIPTION
Fuel Transfer (Lift) Pump Pressure With Engine
Fuel Transfer (Lift) Pump Pressure With Engine
Fuel Injector "Pop Off" Pressure
Fuel Injector Leak-Down Pressure
Fuel Pressure Drop Across Fuel Filter Test Ports
Overflow Valve Release Pressure
FUEL INJECTOR FIRING ORDER—DIESEL
1–5–3–6–2–4
Running
Cranking
Fig. 3 Bleeding High-Pressure Fuel Lines at
Injectors
1 - HIGH-PRESSURE FUEL LINE
PRESSURE
Minimum 69 kPa (10 psi)
Minimum 48 kPa (7 psi)
31,026 kPa (310 bars) or (4500 psi
Approximately 20 bars (291 psi) lower than pop
pressure
34 kPa max. (5 psi. max.) at 2500 rpm (rated rpm)
97 kPa max. (14 psi.) at 2500 rpm (rated rpm)
BR/BE
250 psi)