Question about 2001 Mercury Grand Marquis

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Remove and replace electric fuel pump want to know how to replace

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The fuel pump is in the fuel tank. You have to remove the fuel tank to get to it. The fuel pump is a complete assembly including the fuel sending unit. Aprox $250.00 some you can get the pump only and replace the pump on the sending unit aprox $120.00. the unit is held inplace with 6 small boltd. make sure you clean top of tank off befor removing assembly. so dirt does not go into tank. replace seal also.

Posted on Sep 25, 2009

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  • Master
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Drop the fuel tank out of the car and the pump is inside the tank

Posted on Sep 25, 2009

Testimonial: "thanks for the info we did just that"

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Posted on Jan 02, 2017

mohammed387
  • 1952 Answers

SOURCE: replacing fuel pump need to remove rear seat need to know how

First you will need to releave fuel pressure......

next remove the rear seat cushion to gain access to fuel pump access panel.....

Removing Fuel Pump....

Posted on Jan 29, 2009

  • 1 Answer

SOURCE: replaced fuel pump...still no fuel to the fuel rail.

Have you replaced the fuel filter too

Posted on Jul 24, 2009

sscullys
  • 984 Answers

SOURCE: 1997 Ford F150 Electric Fuel Pump will npt pump

Did you check the fuel inertia switch in the passenger side kick panel ?

The fuel pump is powered :
the fuse to the fuel pump relay.
The fuel pump relay to the fuel inertia switch
The fuel inertia switch to the fuel pump itself.

At the fuel inertia switch in the kick panel, power from the relay is the Dark Green w/ Yellow stripe wire and the pink w/ black stripe wire is the power. from the fuel inertia switch to the fuel pump.

If you jumper the fuel pump relay, you should hear it run. If not pull the fuel pump relay, and check the pins in the relay socket, pin 30 should be the power from the fuse.

50b0c31.jpg

If you have power at pin #30, jumper the relay socket as shown with the red line above, and check the dark green w/ yellow stripe wire at the fuel inertia switch for power.
Press the button on the top of the fuel inertia switch, and check for power leaving the fuel inertia switch on the pink w/ black stripe wire.

This is tests good, check for power at the fuel pump, same pink w/ black stripe wire.
Fuel inertia switch info is in the owners manual, If you did not get an owners manual with your truck ( purchased used ), you can download one from Ford :
https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

Posted on Jan 03, 2010

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1 Answer

Fuel pump replacement


1. Release the fuel pressure .
2. Remove the rear seat ,rear door scuff plate ,step plate ,rear seat lock cover ,rear carpet and cover plate on floor panel for access to electrical connection for fuel pump .
Disconnect electrical connector from top of fuel pump .

From here you can remove the fuel pump unit .

Jun 18, 2013 | 2003 Lexus LX 470

1 Answer

Steps replacing a 1985 grand marquis fuel pump for first time alone thanks


See Figure 1
Two different electric fuel pump configurations were used on fuel injected models. One consists of a low pressure in-tank boost pump in conjunction with an external, frame-mounted high pressure pump. The low pressure pump is used to provide pressurized fuel to the inlet of the high pressure pump and helps prevent noise and heating problems. System pressure is controlled by a pressure regulator mounted on the engine.
The other configuration consists of an in-tank high pressure pump which does not utilize a boost pump.


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Fig. Fig. 1: Disassembled electric fuel pump


REMOVAL & INSTALLATION

In-Tank Pump
See Figures 2, 3 and 4

  1. Disconnect the negative battery cable.
  2. Depressurize the system and drain as much gas from the tank by pumping out through the filler neck.
  3. Raise and support the rear end on jackstands.
  4. Disconnect the fuel supply, return and vent lines at the right and left side of the frame.
  5. Disconnect the wiring to the fuel pump.



0900c15280053dd8.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 2: Low pressure in-tank electric fuel pump


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Fig. Fig. 3: High pressure in-tank fuel pump


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Fig. Fig. 4: Removal of electric fuel pump

  1. Support the gas tank, loosen and remove the mounting straps. Remove the gas tank.
  2. Disconnect the lines and harness at the pump flange.
  3. Clean the outside of the mounting flange and retaining ring. Turn the fuel pump lock ring counterclockwise and remove.
  4. Remove the fuel pump.

To install:
  1. Clean the mounting surfaces. Put a light coat of grease on the mounting surfaces and on the new sealing ring. Install the new fuel pump.
  2. Installation is in the reverse order of removal. Start the vehicle and check electric fuel pump operation. Check for fuel leaks.

High Pressure External Pump
See Figure 5
  1. Disconnect the negative battery cable.
  2. Depressurize the fuel system.
  3. Raise and support the rear of the vehicle on jackstands.
  4. Disconnect the inlet and outlet fuel lines.
  5. Detach the electrical harness connection.
  6. Bend down the retaining tab and remove the pump from the mounting bracket ring.
  7. Install in reverse order. Make sure the pump is indexed correctly in the mounting bracket insulator. Start the vehicle and check electric fuel pump operation. Check for fuel leaks.



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Fig. Fig. 5: High pressure external fuel pump

Feb 12, 2011 | 1985 Mercury Grand Marquis

1 Answer

>how to replace fuel pump?it seems tp lose


you must drop the tank to get to the pump.remove battery cable,support car on jack stands,support tank with floor jack,remove strap bolts,lower tank alittle to remove wires and fuel lines,remove filler tube,let tank down as far as it will go,remove ring with hammer and a peice of wood,remove pump assembly reverse to install.

Nov 26, 2010 | 1996 Chevrolet Tahoe

1 Answer

Replacing a fuel pump


Relieve the fuel system pressure and disconnect the negative battery cable with a socket wrench. Remove the spare tire cover (if present) and trunk floor so that you can open the access panel and disconnect the electrical connection from the fuel pump.
  • Remove the fuel pump's electrical connector and disconnect the quick connect fitting from the fuel pump. Remove the fuel tank locknut using tool 07AAA-S0XA100 or the fuel tank retaining bolts with a socket wrench, depending on the year and engine. Remove the fuel tank.
  • Install the new fuel pump using the items included in the kit and be sure to replace the gasket and O-rings. Align the arrows on the fuel tank and pump.
  • Complete the installation by reversing the removal procedure.


  • Sep 28, 2010 | 1991 Honda Accord

    1 Answer

    How do I change a fuel pump on a 2002 yukon


    Need to know the size of the engine but this is a picture of what it is....


    Posting the rest of the directions for you:


    1cf4b2b.gif
    Illustrating fuel pump and sending unit sensor (3) on 2000-2004 4.8L, 5.3L, 6.0L Engines

    Removal & Installation
    1. Before servicing the vehicle, refer to the Precautions section.
    2. Remove or disconnect the following:
      • Negative battery cable
    3. Relieve the fuel system pressure.
    4. Drain the fuel tank.
    5. Remove or disconnect the following:
      • Fuel tank

      WARNING Do not handle the fuel sender assembly by the fuel pipes. The amount of leverage generated by handling the fuel pipes could damage tool Joints.

    6. Disconnect the fuel and evaporative emission (EVAP) lines from the fuel tank module.
    • Fuel sender assembly retaining ring using a fuel tank sending unit wrench. Remove the fuel sender assembly and the seal. Discard the seal.
    • Note the position of the fuel strainer on the fuel sender. Support the fuel sender assembly with one hand and grasp the strainer with the other hand. Pull the strainer off the fuel sender. Discard the strainer after inspection. Inspect the strainer. Replace a contaminated strainer and clean the fuel tank.
    • Fuel pump electrical connector
    • Electrical connector retaining clip from the fuel level sensor
    • Sensor electrical connector from under the fuel sender cover
    • Fuel level sensor retaining clip
  • Squeeze the locking tangs and remove the fuel level sensor.
  • Remove the fuel pressure sensor.
  • To install:
    1. Install or connect the following:
      • Fuel pressure sensor
      • Fuel level sensor
      • Sensor retaining clip
      • Electrical connector to the fuel level sensor
      • Electrical connector retaining clip to the fuel level sensor
      • Fuel pump electrical connector

      NOTE Always install a new fuel strainer when replacing the fuel tank fuel pump module.

      • New fuel strainer in the same position as noted during disassembly. Push the strainer on the bottom of the fuel sender until the strainer is fully seated.
      • New seal on the fuel tank

      NOTE The fuel pump strainer must be in a horizontal position when the fuel sender is installed in the tank. When installing the fuel sender assembly, assure that the fuel pump strainer does not block full travel of the float arm.

      • Fuel sender assembly into the fuel tank
      • Fuel sender assembly retaining ring
      • Fuel tank. Install the fuel tank strap attaching bolts. Tighten the bolts to 30 ft. lbs. (40 Nm).
    2. Refill the fuel tank. Install the fuel filler cap. Connect the negative battery cable.
    3. Turn the ignition ON for 2 seconds.
    4. Turn the ignition OFF for 10 seconds.
    5. Turn the ignition ON.
    6. Inspect for fuel leaks.

    Sep 13, 2010 | 2002 GMC Yukon Denali

    2 Answers

    I have a 1964 oldsmobile super 88. where is the fuel pump. it has an electric pump underneath. however i replaced it and the car ran for a day. now there is no fuel to the carb. thinking of .....


    OEM fuel pump was mechanical, driven by the cam and is bolted to the block

    if with the replaced electric fuel pump still no fuel, then check power and ground remove the output line and check for fuel there

    possible clogged fuel filter... the one mounted on the carb and/or in the fuel line to the carb.... yes there should be TWO filters!

    Mar 18, 2010 | Oldsmobile 88 Cars & Trucks

    2 Answers

    I need to know find and replace the fuel pump on my 1995 cavalier


    This is what i was able to pull up for you to help you. please let me know if you need further asistance with your vehicle and I would be glad to assist you..

    Please do not forget to rate and comment about your experience with fixya today.

    Fuel System > Gasoline Fuel Injection System > Fuel Pump > Removal & Installation Removal & Installation
    CAUTION The fuel injection system remains under pressure, even after the engine has been turned OFF. The fuel system pressure must be relieved before disconnecting any fuel lines. Failure to do so may result in fire and/or personal injury.
    1. Relieve the fuel system pressure using the recommended procedure.
    2. Disconnect the negative battery cable.
    3. Drain the fuel tank, then remove the fuel tank from the vehicle.
    4. While holding the modular fuel sender assembly down, remove the snap-ring from the designated slots located on the retainer.

    WARNING The modular fuel sender assembly may spring up from its position. When removing the modular fuel sender from the tank, be aware that the reservoir bucket is full of fuel. It must be tipped slightly during removal to avoid damage to the float.
    1. Remove the external fuel strainer.
    2. Detach the Connector Position Assurance (CPA) piece from the electrical connector and detach the fuel pump electrical connector.
    3. Gently release the tabs on the sides of the fuel sender at the cover assembly. Begin by squeezing the sides of the reservoir and releasing the tab opposite the fuel level sensor. Move clockwise to release the second and third tabs in the same manner.
    4. Lift the cover assembly out far enough to detach the fuel pump electrical connection.
    5. Rotate the fuel pump baffle counterclockwise and remove the baffle and pump assembly from the retainer.
    6. Slide the fuel pump outlet out of slot, then remove the fuel pump outlet seal.
    To install:
    1. Install the fuel pump outlet seal, then slide the fuel pump outlet in the slots of reservoir cover.
    2. Install the fuel pump and baffle assembly onto the reservoir retainer and rotate clockwise until seated.
    3. Install the lower retainer assembly partially into the reservoir. Line up all 3 sleeve tabs. Press the retainer onto the reservoir making sure all 3 tabs are firmly seated.
    Gently pull on the fuel pump reservoir from retainer to assure a secure fastening. If not secure, replace the entire fuel sender.
    1. Attach the fuel pump connector.
    2. Fasten the CPA connector to the fuel sender cover.
    3. Install a new external fuel strainer.
    4. Install the modular fuel sender.
    5. Install the fuel tank in the vehicle.
    6. Connect the negative battery cable.
    7. Pressurize the fuel system and verify no leaks.
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    Jan 07, 2010 | 1995 Chevrolet Cavalier

    2 Answers

    How how do I know if my the fuel pump has gone bad on my 2004 s-10 pickup?


    spray quick start. If it starts you know you have a fuel issue. If it doesnt start you have an ignition issue. If you have no fuel pressure or ignition spark then most likely its a crank sensor issue. If you have a timing light that can show low RPM values then cranking you should have 100 to 200 rpm and the light should flicker. If no flicker then you have some sort of ignition issue.

    Nov 20, 2009 | 2004 Chevrolet S-10

    1 Answer

    CTS check engine light code P0451


    Hi. the fuel pressure sensor is part of the fuel pump assembly. You will have to remove the fuel pump to replace this. I would go ahead and replace the fuel pump while you are there.You will have to Pull the strainer off the fuel pump and discard it. remove the retaining clip for the fuel pressure regulator so that you can remove the fuel pressure regulator. Disconnect the electrical connections for the fuel pumps and the fuel level sensor. Remove the retaining clip for the fuel level sensor and remove the fuel level sensor by squeezing the locking tangs. the sensor is incorporated in this area.

    Please rate and god bless.

    Mar 26, 2009 | 2005 Cadillac CTS

    1 Answer

    How do I replace the fuel pump on a 2006 chevy avea


    I assume you meant a Chevy Aveo.
    -Remove the rear seat.
    -Remove fuel pump access cover.
    -Disconnect electrical connector and fuel outlet line
    -Remove lock ring
    -Pull out fuel pump assembly from the tank.

    Reverse this to install but make sure you clean out the groove where the gasket sits. A lot of the time dirt/debris will get in the groove when you remove the pump and can cause some leakage later on.

    Jul 29, 2008 | 2006 Chevrolet Aveo

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