Question about 2000 Chevrolet Malibu

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How to replace fuel pump on chevy malibu 2000

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Anonymous

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First you should check your trunk. some newer chevy's have an access pannel uner the trunk liner inside the trunk. you remove the liner, remove the bolts and panel, and the pump is right there. it may take some effort to get it wiggled through, but trust me, it will fit. you must remove the fuel lines and wire harness first, then remove the lock ring completely before attempting to pull the pump through the access hole. if that fails then you need to drop you fuel tank to access the pump. there are instructions for removal and installation of the tank below.

REMOVAL & INSTALLATION

  1. Disconnect the negative battery cable.
  2. Drain the fuel tank, using a hand-operated pump device to drain as much fuel through the filler tube as possible.



how to replace fuel pump on chevy malibu 2000 - 0900c1528026905d.jpg Fig. View of fuel tank mounting


0900c1528026905e.jpg Fig. The fuel filler pipe is attached to the body with a bracket and rhow to replace fuel pump on chevy malibu 2000 - 0900c1528026905f.jpg


0900c1528026905f.jpg Fig. The fuel filler pipe is attach to the tank by a hose clamp
  1. Raise and safely support the vehicle.
  2. Unfasten the muffler hanger bolts.
  3. Remove the rubber exhaust hangers, then allow the exhaust system to rest on the rear axle.
  4. Disconnect the hoses from the fuel tank sender. Grasp the filter and one nylon fuel connection line fitting. Twist the quick-connect fitting 1 / 4 turn in each direction to loosen any dirt within the fitting. Repeat for the other fitting. Using compressed air, blow out the dirt from the quick-connect fittings at the end of the fuel filter.
  5. Detach the quick-connect fittings by pulling the release tabs back on the fuel line quick connector and pulling apart.
  6. Disconnect the hoses at the tank from the filler, vent and vapor pipes.
  7. With the help of an assistant, support the fuel tank, then disconnect the two tank retaining straps and carefully lower the tank.
  8. Detach the fuel sender electrical connector.
  9. Unplug the fuel pressure sensor connector.
  10. Remove the fuel tank from the vehicle.

To install:
  1. If the tank is being replaced, perform the following:
    1. Remove the sound insulators.
    2. Remove the modular fuel pump/sender assembly, as outlined earlier in this section.
    3. Inspect all connectors for dirt and burrs. Clean or replace, as required. Inspect the fuel line O-rings for cuts, nicks, swelling and/or distortion and replace as necessary.
    4. Install the fuel sender assembly to the new tank, as outlined earlier in this section.
    5. Install the sound insulators.

  2. With the help of an assistant, raise the fuel tank to the vehicle and attach the fuel sender connector and, if equipped, the fuel pressure sensor connector.
  3. Raise the fuel tank into position then fasten the retaining straps. Tighten the retaining bolts to 26 ft. lbs. (35 Nm).
  4. Connect the hoses to the filler, vent and vapor pipes.
  5. Attach the nylon fuel feed and return connecting line quick-connect fittings to the fuel sender, as follows:
    1. Apply a few drops of clean engine oil to the male connector tube ends.
    2. Push the connectors together to cause the retaining tabs/fingers to snap into place.
    3. Once installed, pull on both ends of each connection to be sure they are secure.

  6. Install the rubber exhaust hangers.
  7. Install the muffler hanger bolts, then tighten to 11 ft. lbs. (15 Nm).
  8. Attach the fuel tank sender electrical connector.
  9. Carefully lower the vehicle.
  10. Refill the fuel tank, then connect the negative battery cable.
  11. Turn the ignition to the ON position for two seconds, then turn it to the OFF position for ten seconds. Turn again to the ON position and check for fuel leaks.

Posted on Nov 04, 2009

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5 Related Answers

Anonymous

  • 1 Answer

SOURCE: FUEL PUMP FOR CHEVY SILVERADO

fuel filter? how about power to the fuel pump,loose ground wire to chasis? wiring harness? terminals clean at point of connection?did you check the fuel pump relay? Relay is located in electrical center under the hood on the driver side.relay and fuse legend will be on bottom side of cover, you sould be able to switch with another relay that you know works, ie: switch horn relay with fuel pump relay, honk horn to insure both relays are working when either relay is inserted into horn slot. Do you by chance have the electrical schematic drawing for the fuel pump?

Posted on Feb 19, 2009

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mcgyver468

Mark L. Roberts Jr.

  • 710 Answers

SOURCE: fuel gauge bouncing on 2000 chevy tahoe where is fuel pump relay

fuel sending unit is in the tank. this is normal after about 75k miles and up. pump and sending unit are sold together. fuel sloshes from front to rear making the float on the sender rise and fall.

Posted on Apr 21, 2009

Anonymous

  • 206 Answers

SOURCE: Replace the water pump on a 2002 Malibu

What size motor If it is a v6 most of them you are easy drian the radiator down take the pulley of the pump and you will remove the bolt and pump

Posted on Apr 05, 2009

ZJLimited

ZJ Limited

  • 17970 Answers

SOURCE: replace a fuel pump on 2000 chevy cavalier

REMOVAL & INSTALLATION
(see Figures 1 and 2)

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.
35a484a.jpg

Fig. 1: The module fuel sender assembly is mounted in the fuel tank

fbd4d43.jpg

Fig. 2: Modular fuel pump component identification




Hope this help to solve your problem (remember comment and rated this).

Posted on Apr 25, 2010

ZJLimited

ZJ Limited

  • 17970 Answers

SOURCE: 2000 Malibu Starts then looses

Keep in mind that you have several components there:
- Fuel Pump Sender Assembly,
- Fuel Pressure Regulator,
- Fuel Rail Assembly, and
- Fuel Injectors.

1.- Fuel Pump (Sender Assembly) - TESTING
Refer to the accompanying charts for fuel pump diagnosis and testing.

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.

eb744a2.jpg

Fig. 3.1L engine OBD system check to be done before fuel pump relay circuit diagnosis


26456ba.jpg

Fig. 3.1L engine fuel pump relay circuit diagnosis (1 of 2)


b3b739d.jpg

Fig. 3.1L engine fuel pump relay circuit diagnosis (2 of 2)


db78a73.jpg

Fig. View of the fuel pressure test port (Schrader valve)-3.1L engine

A - 3.1L engine fuel system pressure test (1 of 4)
B - 3.1L engine fuel system pressure test (2 of 4)
C - 3.1L engine fuel system pressure test (3 of 4)
D - 3.1L engine fuel system pressure test (4 of 4)

c8a9798.jpg

Fig. The fuel pump/fuel sender module assembly is mounted in the fuel tank


2.-
Fuel Pressure Regulator - REMOVAL & INSTALLATION

(the fuel pressure regulator, which is located on the fuel rail assembly)

NOTE:
Before removing the fuel regulator assembly, place a clean shop towel under the regulator to catch any fuel drips

  1. Properly relieve the fuel system pressure.
  2. If not done already, disconnect the negative battery cable.
  3. On the 3.1L engine, remove the intake manifold plenum, as outlined in .
  4. On the 2.4L engine, remove the fuel rail. Refer to procedure earlier in this section.
  5. Detach the vacuum line from the regulator.
  6. Place a shop towel under the regulator to catch any fuel that may drip out. Unfasten the fuel pressure regulator retaining screw, then remove the regulator by twisting and pulling it from the fuel rail.
  7. Remove and discard the O-ring seal. Inspect the filter screen for contamination and replace if necessary.
To install:
  1. Prior to assembling the pressure regulator to the fuel rail, lubricate the new rail-to-regulator O-ring seal with clean engine oil.
  2. Place the O-ring on the pressure regulator and install the pressure regulator to the fuel rail.
  3. Install the retainer or coat the regulator mounting screws with an approved thread locking compound and secure the pressure regulator in place. Tighten the mounting screw to 76 inch lbs. (8.5 Nm).
  4. If removed, install the fuel rail assembly to the engine.
WARNING The fuel return pipe must be connected before tightening the regulator retaining screw to prevent the regulator from rotating. Rotation of the regulator could damage the retainer and spacer bracket and lead to a fuel leak at the regulator inlet.
  1. Connect the fuel feed line and return line to the fuel rail assembly, use a backup wrench on the fittings to prevent turning.
  2. Attach the vacuum line to the regulator.
  3. On the 3.1L engine, install the intake manifold plenum.
  4. Connect the negative battery cable. Turn the ignition to the ON position for two seconds, then turn it to the OFF position for ten seconds. Turn again to the ON position and check for fuel leaks.

continue...

Posted on May 24, 2010

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