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Where is fuel pressure regulator located on 1995 Mitsubishi pickup truck?

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  • vict12327 Dec 31, 2010

    Thanks very much; very helpful.



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Located under the intake plenum. REMOVAL & INSTALLATION
2.4L Engines

  1. Safely relieve the pressure within the fuel system.
  2. Drain the engine coolant to a level below that of the intake manifold.
  3. Remove the air intake hose, the breather hose, the wiring harness connector,the air intake pipe and the air hose.
  4. Disconnect the accelerator and kickdown cables from the throttle body.
  5. Remove the water hose from the throttle body.
  6. Unplug the vacuum hose from the fuel pressure regulator.
  7. Remove the throttle body from the intake manifold plenum
  8. Extract the gasket from the throttle body/intake manifold plenum mounting surface; a new gasket will be needed upon assembly.
  9. Remove the fuel return hose, the mounting bolt and the fuel pressure regulator from the fuel rail. The O-ring between the fuel rail and the fuel pressure regulator will need to be replaced with a new one upon assembly.
To Install:
  1. Install a new O-ring on the fuel pressure regulator and coat it lightly with clean gasoline. Install and tighten the fuel pressure regulator to fuel rail mounting bolts to 5-8 ft. lbs. (7-11 Nm)
  2. Install the fuel rail mounting bolts through the fuel return hose mounting bracket, through the fuel rail and into the intake manifold. Tighten them to 6-9 ft. lbs. (8-12 Nm).
  3. Connect the fuel return hose to the fuel return rail. Fasten it in place with the spring clip. Connect the high pressure fuel line to the fuel rail, using as new O-ring. Coat the O-ring with a little gasoline to help it seal better. Tighten the two retaining bolts to 1-2 ft. lbs. (2-3 Nm) of torque.
  4. Plug the fuel injector harness back onto the fuel injectors.
  5. Install the throttle body back onto the intake manifold plenum with a new gasket. Make sure the gasket goes onto the intake manifold plenum to throttle body opening with the gasket projection up and to the left (look straight into the intake manifold plenum opening, in other words from the passenger-side of the engine compartment). Install the throttle body mounting bolts with 11-16 ft. lbs. (15-22 Nm) of torque.
  6. Connect the vacuum hose, the water hose, the automatic transmission kickdown cable (if so equipped) and the accelerator cable. Refer to the accelerator cable adjustment procedure described earlier in this section.
  7. Connect the air hose, the air intake pipe, the breather hose and the air intake hose.
  8. Plug the wiring harness connector back into the throttle body.
  9. Fill the engine coolant system back up.
  10. The engine may turn over a few times until the fuel system pressure can be brought back up to normal. Check for any coolant or fuel leaks, repair if necessary.

Posted on Dec 31, 2010

  • GetMeOttaHere Dec 31, 2010

    Your welcome and Thanks for using Fixya.



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1. Disconnect the negative battery cable.

2. Properly relieve the fuel system pressure.

3. Remove the air cleaner outlet tube(s).

4. Remove any necessary components to access the pressure regulator.

5. Disconnect the vacuum hose from the pressure regulator.

6. Remove the pressure regulator attaching screws.

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9. Lubricate the O-rings with clean engine oil.

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