Fuel Pressure Regulator - Isuzu Trooper 1999 Workshop Manual

3. Install the fuel injector on the fuel rail.
4. Use new fuel injector retainer clips to retain the fuel
injector to the fuel rail.
5. Coat the end of the fuel injector with engine oil.
6. Install the fuel rail. Refer to Fuel Rail .
7. Install the upper intake manifold. Refer to Common
Chamber in Engine Mechanical.
8. Install the engine cover.
9. Connect the negative battery cable.
TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
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Fuel Pressure Regulator

Removal Procedure
CAUTION: To reduce the risk of fire and personal
injury, it is necessary to relieve the fuel system
pressure before servicing the fuel system
components.
CAUTION: After relieving the system pressure, a
small amount of fuel may be released when servicing
fuel lines or connections. Reduce the chance of
personal injury by covering the fuel line fittings with
a shop towel before disconnecting the fittings. The
towels will absorb any fuel that may leak out. When
the disconnect is completed, place the towel in an
approved container.
NOTE: Compressed air must never be used to test or
clean a fuel pressure regulator, as damage to the fuel
pressure regulator may result.
NOTE: To prevent damage to the fuel pressure regulator,
do not immerse the pressure regulator in solvent.
1. Depressurize the fuel system. Refer to Fuel Pressure
Relief Procedure .
2. Disconnect the negative battery cable.
3. Remove the fuel pump relay. Refer to Fuel Pump
Relay .
4. Remove the pressure regulator hose from the fuel
pressure regulator.
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