Service Manual

ISB, ISBe and QSB (Common Rail [...] Fuel Rail
Section 6 - Injectors and Fuel Lines - Group 06 Page 6-91
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WARNING
Depending on the circumstance, diesel fuel is
flammable. When inspecting or performing service or
repairs on the fuel system, to reduce the possibility of
fire and resulting severe personal injury, death or
property damage, never smoke or allow sparks or
flames (such as pilot lights, electrical switches, or
welding equipment) in the work area.
NOTE: The fuel rail pressure relief valve drain line can
have either a banjo fitting or a quick-disconnect fitting.
Disconnect the fuel pressure relief valve drain line.
NOTE: It is not necessary to remove the high-pressure
supply line from the engine.
Disconnect the high-pressure supply line that connects
the fuel pump to the fuel rail.
NOTE: For some engines, it could be necessary to loosen
the three cap screws holding the fuel filter bracket in
place. This will provide adequate clearance to separate
the high-pressure supply line from the fuel rail.
Remove the capscrews and the fuel rail.