Service Manual

Fuel Rail ISB, ISBe and QSB (Common Rail [...]
Page 6-90 Section 6 - Injectors and Fuel Lines - Group 06
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Preparatory Steps
Automotive and Industrial
WARNING
Batteries can emit explosive gases. To reduce the
possibility of personal injury, always ventilate the
compartment before servicing the batteries. To
reduce the possibility of arcing, remove the negative
(-) battery cable first and attach the negative (-)
battery cable last.
• Disconnect the batteries. Refer to Procedure 013-009
in Section 13.
NOTE: Note the location of the high-pressure supply lines
so they are replaced in the same location during
assembly.
• Remove the high-pressure supply lines that connect
the fuel rail to the high-pressure connectors. Refer to
Procedure 006-051 in Section 6.
Marine Applications
CAUTION
Use caution when disconnecting or removing fuel
lines, replacing filters and priming the fuel system
that fuel is not spilled or drained into the bilge area.
Do not drop or throw filter elements into the bilge
area. The fuel and fuel filters must be discarded in
accordance with local environmental regulations.
Clean all fittings before disassembly. Dirt or contaminants
can damage the fuel system.
Close the fuel supply and return valves to the engine.
Remove
NOTE: Do not remove the fuel rail pressure sensor
unless it is being replaced. The fuel pressure sensor must
be replaced if it is removed from the fuel rail.
Disconnect the fuel pressure wiring harness sensor
connector.