Question about 1987 Peugeot Liberte

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Citroen picasso keeps cutting out twice a week on acceleration

Engine cuts out on my HDi picasso, fitted new fuel filter and a new fuel pressure regulator. Engine still stops intermittently usually in the outside lane on the A1, not very healthy!. Takes about 10 minutes then will start perfectly as if nothing wrong. can make this happen on demand by accelerating hard.Engine management light comes on for about five ignition starts then goes out until the next stoppaged.Code indicates electrical fault within the primary fuel circuit. Citroen sugest keep on putting new parts until fault is rectified! £250 and counting?
Any idea's

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  • Chris Edwards
    Chris Edwards Oct 31, 2010

    Have you changed the pump in the tank?

  • ivanovski_sa
    ivanovski_sa Dec 18, 2012

    ..it is something to do with so called "ergo" or "eco" valve which is connected by a tube to something in which 4 different tubes are hooked up in one black head located on the top left corner of the engine box. just pull it off and problem solved. the so called "e" valve gets blocked by tiniest dirt or water splash resulting in engine cuts. took me 5yrs, and 1000eurs to locate the problem.after that just watch out on pollution tests taken by police if applicable in england. the valve basically re-filter the residue gas before going out. friendly from macedonia...sasko

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  • Master
  • 600 Answers

Sounds like an air leak or the tank pump cannot keep up with demand (the supply pump in tanks do give trouble (a pressure gauge between tank and engine would tell, make sure it is visable when driving, I used to tape it to the bonnet with masking tape.

Posted on Aug 16, 2009

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SOURCE: Hi, I'm thinking of fitting

fitting rear flaps is a simple job depending on the kit you buy......you may find the rear window gets dirtier with flaps fitted,due to spray being finer.(citroen is the same a puegeot)

Posted on Feb 15, 2011

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SOURCE: car wont rev

under the bonnet on the back of the mechanical pump there is a unit held in by 2 bolts
remove this unit and on the end there is a tiny filter
this will need cleaning because when the lift pump brakes down tiny parts of it get sucked up through the pipes and clog the filter
it may be best to feplace the fuel filter aswell

Posted on Dec 14, 2009

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jturcotte_421.gif


Removal & Installation

4.2L Engine

  1. Relieve the fuel system pressure.
  2. Remove the air cleaner outlet resonator.
  3. Disconnect the engine wiring harness from the retaining clips at the front of the engine.
  4. Disconnect the fuel pressure regulator vacuum line.
  5. Clean any dirt from the fuel pressure regulator and the surrounding area.
  6. Disconnect the fuel return pipe.
  7. Remove the fuel return pipe retainer.
  8. Remove the fuel pressure regulator retainer.
  9. Remove the fuel pressure regulator.
  10. Inspect the regulator filter screen for contamination. If contaminated, replace the fuel pressure regulator.

To install:
  1. Install the regulator filter.
  2. Install the new O-ring on the fuel pressure regulator.
  3. Lubricate the fuel pressure regulator O-ring with clean engine oil.
  4. Push the fuel pressure regulator into the regulator housing on the fuel rail.
  5. Install the fuel pressure regulator retainer. Tighten the regulator retainer screw to 71 inch lbs. (8 Nm).
  6. Install the fuel return pipe retainer. Tighten the return pipe retainer screw to 71 inch lbs. (8 Nm).
  7. Connect the fuel return pipe.
  8. Connect the fuel pressure regulator vacuum line.
  9. Connect the negative battery cable.
  10. Inspect for leaks:
    1. Turn ON the ignition for 2 seconds.
    2. Turn OFF the ignition for 10 seconds.
    3. Turn ON the ignition.
    4. Inspect for fuel leaks.

  11. Install the engine wiring harness into the retaining clips at the front of the engine.
  12. Install the air intake resonator.

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How do you change a fuel filter


All WJ models have two fuel filters, a strainer filter at the bottom of the fuel pump module inside the fuel tank and one exterior filter within the fuel pressure regulator. Both filters are designed for extended service. They do not require normal scheduled maintenance. Filters should only be replaced if a diagnostic procedure indicates to do so.

The combination fuel filter/pressure regulator is located in front of the fuel tank and above the rear axle. It is transversely mounted to a chassis crossmember (left-to-right). The filter/regulator is equipped with 3 fuel line fittings (2 at one end and 1 at the other end). The single fitting facing the left side of the vehicle is the supply line to the fuel rail. The 2 fittings facing the right side of the vehicle are connected to the fuel tank. Of these 2 fittings, the fitting towards the front is used for fuel return to the fuel tank. The fitting towards the rear is a pressure line.

8bac4de.jpg

Fig.: Fuel filter / regulator location


External filter/regulator removal
WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). BEFORE SERVICING ANY FUEL SYSTEM HOSES, FITTINGS OR LINES, THE FUEL SYSTEM PRESSURE MUST BE RELEASED.

1. Remove fuel fill cap.
2. Remove fuel pump relay from Power Distribution Center (PDC). For location of relay, refer to label on underside of PDC cover.
3. Start and run engine until it stalls.
4. Attempt restarting engine until it will no longer run.
5. Turn ignition key to OFF position.
6. Disconnect negative battery cable at battery.
7. Raise vehicle.
8. Clean area around 3 filter/regulator fittings.
9. Disconnect fuel supply, fuel return and fuel pressure lines at filter/regulator. Special tools may be required.
10. Remove 2 mounting bolts and remove filter/regulator.



External filter/regulator installation
1. Before installing filter/regulator, be sure all fittings are cleaned of all dirt and contaminants.
2. Be sure o-ring is positioned into fuel return fitting in filter/regulator.
3. Apply a small amount of clean engine oil to o-rings.
4. Position filter/regulator to body and install 2 bolts. Tighten bolts. Refer to Torque Specifications.
5. Connect 3 fittings.
6. Connect negative battery cable to battery.
7. Start engine and check for leaks.


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under the bonnet on the back of the mechanical pump there is a unit held in by 2 bolts
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