Service Manual

Fuel Pump ISB, ISBe and QSB (Common Rail [...]
Page 5-12 Section 5 - Fuel System - Group 05
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During the test, record the following:
• Ambient temperature
• Humidity
• Barometric pressure
• Wind velocity
• Wind direction.
NOTE: Avoid testing under any extreme conditions.
Fuel Pump (005-016)
General Information
WARNING
The fuel pump, high-pressure fuel lines, and fuel rail
contain very high-pressure fuel. Do not loosen any
fittings while the engine is running. Wait at least 10
minutes after shutting down the engine before
loosening any fittings in the high-pressure fuel
system to allow pressure to decrease to a lower level.
CAUTION
Use caution when disconnecting or removing fuel
lines, replacing filters and priming the fuel system, so
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.
CAUTION
Be sure that the fuel inlet and return valves are
returned to the open position before cranking the
engine. Engine damage can result if the valves are in
the wrong position when the engine is cranked or
started. Environmental damage can also occur.
There are four different mounting locations available for
high-pressure fuel pumps. The pump can be mounted in a
high or low position in either a front or rear gear train
engine. Due to the number of different fuel pump
mounting locations, the steps in this procedure have been
written to be generic. Some of the illustrations do not
represent the parts being removed or installed.
Refer to Procedure 005-999 in Section F.