I'm trying to remove a fuel pump from 2004 tahoe. Hoses are connected to pump with some strange connectors that I can figure out how to release. Can you help?

You have to drop the fuel tank carefully (easier to do if the tank is empty). Disconnect hoses and wiring connectors from the pump/fuel level sensor. Vacuum or brush off any debris on the fuel pump and around the locking ring. Remove the locking ring and wiggle the pump assembly out.

REMOVAL & INSTALLATION

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The fuel pump on all models except the 1986-90 Integra, is located in the fuel tank. On the 1986-90 Integra the fuel pump is located under the rear of the vehicle, near the drivers side of the fuel tank.

PRESSURE TESTING

See Figure 1
On all models, the fuel pump should run for about 2 seconds when the ignition is first turned ON . By removing the filler cap and listening at the filler, it should be possible to hear the pump run each time the ignition is switched ON . It will then stop again until the starter is activated.

Fig. Fig. 1: Checking the fuel system pressure

1. Disconnect the negative battery cable and remove the fuel filler cap.
2. Relieve the fuel system pressure.
3. Remove the service bolt and attach a fuel pressure gauge to the top of the fuel filter.
4. Start the engine and measure the fuel pressure with the engine idling and vacuum hose to the pressure regulator disconnected;

1986-1989 Integra-35-41 psi. (240-279 kPa) 1990-93 Integra-37-44 psi. (255-304 kPa) 1989-90 Legend-36-41 psi. (250-279 kPa) 1991-93 Legend-38-46 psi. (265-314 kPa) Vigor-43-50 psi. (300-350 kPa)

1. Check to see that the pressure decreases when the vacuum hose is connected.
2. If the pressure is higher than specifications, check for a pinched or clogged fuel return hose or faulty pressure regulator.
3. If the pressure is lower than specifications, check for a clogged filter, defective pressure regulator or leakage in the fuel line.
4. After inspection, remove the pressure gauge and install the service bolt with a new washer.

REMOVAL & INSTALLATION

1986-1989 Integra

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Raise and safely support the vehicle and remove the left rear wheel.
4. Remove the fuel pump cover bolts and the cover.
5. Remove the fuel pump mount bolts and the fuel pump with it's mount.
6. Disconnect the fuel hoses and the electrical connectors.
7. Installation is the reverse of removal. Use new sealing washers when connecting the fuel hoses. After the pump is installed, turn the ignition switch ON and OFF a number of times to pressurize the system and check for leaks.

1990-93 Integra and Vigor
See Figures 2 and 3

1. On Integra, remove the rear seat and access panel and disconnect the wiring.
2. Remove the fuel tank.
3. Remove the pump flange mounting nuts and lift the pump out.
4. Installation is the reverse of removal. Use new sealing washers when connecting the fuel hoses. After the pump is installed, turn the ignition switch ON and OFF a number of times to pressurize the system and check for leaks.

Fig. Fig. 2: Removing the fuel pump access cover-Legend and Vigor

Fig. Fig. 3: Removing the fuel pump assembly-Legend and Vigor
Legend

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Remove the maintenance access cover in the luggage area.
4. Disconnect the fuel lines and the electrical connectors.
5. Remove the fuel pump from the fuel tank.
6. Installation is the reverse of removal. Use new sealing washers when connecting the fuel hoses. After the pump is installed, turn the ignition switch ON and OFF a number of times to pressurize the system and check for leaks.

REMOVAL & INSTALLATION

323, Protege, 520-22 626 and MX-6 and 522-24 MX-3 Models
See Figures 1 and 2

1. Relieve the fuel pressure and disconnect the negative battery cable.
2. If not already removed, depress the clips on each end of the rear seat cushion and remove the cushion.

Fig. Fig. 1: Detach the fuel hoses and electrical connections from the fuel pump, then remove the attaching screws and the pump

Fig. Fig. 2: Exploded view of the fuel pump assembly for the 323, Protege, 520-22 626, MX-6 and 522-24 MX-3

1. If not already done, detach the electrical connector from the fuel pump/sending unit.
2. Remove the attaching screws from the fuel pump/sending unit access cover and remove the cover.
3. Disconnect the fuel supply and return hoses from the fuel pump/sending unit.
4. Remove the attaching screws and the fuel pump/sending unit from the fuel tank.
5. Detach the sending unit electrical connector, remove the sending unit attaching nuts and remove the sending unit from the fuel pump assembly.

To install:

1. Attach the sending unit to the fuel pump assembly and install the nuts. attach the sending unit electrical connector.
2. Install the fuel pump/sending unit into the fuel tank with a new gasket and install the mounting screws.
3. Connect the fuel supply and return lines.
4. Install the access cover and the mounting screws.
5. Attach the sending unit electrical connector.
6. Position the rear seat cushion over the floor, making sure to align the retaining pins with the clips. Push down firmly until the two retaining pins are locked into the rear seat retaining clips.
7. Connect the negative battery cable, start the engine and check for proper system operation and for fuel leaks.

.

1. CAUTION
2. Smoking or open flame of any type must not be present when working near fuel or fuel vapor.

1. Disconnect both battery ground cables.

1. Raise and support the vehicle.

1. Before servicing the vehicle, refer to the Precautions Section.
   CAUTION Smoking or open flame of any type must not be present when working near fuel or fuel vapor.
   
2. Disconnect both battery ground cables.
3. Raise and support the vehicle.
4. Open the fuel/water separator drain valve to release the fuel pressure.
5. Disconnect the electrical connectors.
6. Disconnect the fuel pump electrical connector.
7. Disconnect the fuel warmer electrical connector.
8. Disconnect the water-in-fuel electrical connector.
9. Disconnect the fuel hoses.
10. Remove the fuel hose retaining clips and discard. Disconnect the fuel hoses from the fuel pump.
11. Press in the retaining clips and release the fuel hoses.
12. Remove the mounting nuts and the fuel conditioning module.
13. To install, reverse the removal procedure. Torque the nuts to 11 ft. lbs. (15 Nm).

1. Open the fuel/water separator drain valve to release the fuel pressure.
   
   

Hi.

You need to release pressure from fuel lines cutting power to fuel pump.Turn on engine and remove fuel pump fuse. See:How To Release Pressure
Then disconnect battery.
Take down the fuel tank working from under backseat and underneath the car.
The fuel sender is located inside protective Housing. Remove housing held by 4 screws.
Disconnect electrical connector.
Disconnect the two hoses connected to sensor. Be careful with fuel that may still spray at pressure.
Perform operations in reverse order to reinstall.

Here a website showing the job done on a Carisma.

Regards.

Ginko

lucky you, you can get to it from the trunk.

Removal & Installation

1. Before servicing the vehicle, refer to the Precautions Section.
2. Relieve the fuel system pressure.
3. Drain the fuel tank.
4. Remove or disconnect the following:
   CAUTION When removing the fuel sender from the tank, the reservoir bucket is full of fuel. Use caution in containing the fuel.
   
   NOTE Note the direction the strainer is pointing.
   
   
   Negative battery cable Spare tire and jack Trunk lining Fuel sender access panel Sender and quick connect fittings from the sender Electrical connector from the sender and position harness and hoses aside
   
   
   Sender retaining ring Sender and take note of its position Fuel sender O-ring and discard it
   
   
   Strainer from the pump by pulling it down and twisting Pump electrical wires and hoses Pump assembly out of the rubber connectors
   

To install:

1. Transfer any insulators and grommets from the old pump to the new one.
2. Connect the pump to the fuel hose and tilt the bottom of the pump into the mounting bracket.
3. Install or connect the following:
   
   New strainer on the pump so it points in the same direction as noted during removal Electrical connectors and fuel lines to the pump New O-ring on top of the fuel tank Fuel sender assembly into the tank Lockring Fuel line quick connectors Sender electrical connector Fuel sender access cover Trunk liner Spare tire and jack
   
4. Refill with fuel and check for leaks.

you 'd actually have to pull the tank down ,fuel pump can be found inside of the tank ,make sure to disconnect the battery before to start doing anything,need more ingo let me know.

It is in the fuel tank....here is the directions on how to do the job:

Removal & Installation

1. Before servicing the vehicle, refer to the Precautions Section.
   
2. Relieve the fuel system pressure.
   
3. Disconnect the negative battery cable.
   
4. Remove the rear seat cushion from the vehicle.
   
5. Clean any dirt that has accumulated around the fuel pump cover so it will not enter the tank during pump removal and installation.
   
6. Remove the fuel pump cover.
   
7. Disconnect the fuel gauge connector, hoses, and the gauge.
   
8. Disconnect the fuel pump electrical connector.
   
9. Remove the fuel pump from the bracket assembly.
   
10. Remove the seal ring and discard.
    

To install:

1. Clean the fuel pump mounting flange, fuel tank mounting surface and seal ring groove.
   
2. Apply a light coating of grease on a new seal ring to hold it in place during assembly.
   
3. Install the seal ring.
   
4. Install the fuel pump to the bracket assembly carefully to ensure the filter is not damaged. Be sure the seal ring remains in the groove.
   
5. Hold the pump assembly in place, and pull the fuel pump down so that it is tight against the bracket.
   
6. Connect the fuel pump electrical connector.
   
7. Connect the fuel gauge, hoses, and gauge connector.
   
8. Install the fuel pump cover.
   
9. Install the rear seat cushion.
   
10. Connect the negative battery cable.
    
11. Start the engine and check for proper system operation and for fuel leaks.
    

Fuel pump is located inside the fuel tank access cover location. Here's the details:

1. Properly relieve the fuel system pressure.
2. Disconnect the negative battery cable.
3. Open the rear access door.
4. Release the catch for the back seat and tilt the seat out of the way.
5. Move the carpet behind the seat that covers the fuel pump access panel.
6. Disconnect the fuel pump electrical connectors.
7. Remove the screw securing the ground wire.
8. Remove the four screws securing the fuel pump access panel and position it out of the way.
9. Remove the hose clamps connecting the fuel hoses to the fuel pump.
10. Disconnect the fuel hoses from the fuel pump.
11. Disconnect the fuel tank pressure sensor electrical connector.
12. Remove the eight retaining screws securing the sender assembly to the tank.
    WARNING The fuel assembly is easily damaged. Use care when removing the assembly from the tank.
    
13. While twisting and tilting, gradually lift the fuel sender assembly and remove from the tank.
14. Wrap the fuel pump assembly in a rag before removing the assembly from the vehicle.
15. Cover or seal the fuel tank until installing the fuel pump assembly.
16. Remove the retaining hardware that holds the sender to the fuel pump assembly.

To install:

1. Install the retaining hardware that holds the sender to the fuel pump assembly.
2. Remove the temporary covering or seal that was used to protect the tank.
3. Install the fuel pump into the access port on top of the fuel tank.
4. Carefully, twist the fuel pump as necessary to properly position it in the fuel tank.
5. Install the eight retaining screws securing the sender assembly to the tank.
6. Connect the two fuel hoses to the pump and secure with clamps.
7. Connect the fuel tank pressure sensor electrical connector.
8. Insert the ground wire and fuel pump electrical connector through the access hole and install the access cover.
9. Connect the fuel pump electrical connector.
10. Secure any loose wiring with adhesive tape and reattach the carpeting.
11. Release the catch for the rear seat and put the rear seat in the normal position.
12. Close the rear access door.
13. Reconnect the negative battery cable.

I can help you further and show you where you can access the information for free. Good luck!

The combination Fuel Filter/Fuel Pressure Regulator is located on the fuel pump module. The fuel pump module is located on top of fuel tank.

The filter/regulator may be removed without removing fuel pump module although fuel tank must be removed.

REMOVAL

1. Remove fuel tank. Refer to Fuel Tank Removal/Installation.
2. Clean area around filter/regulator.
3. Disconnect fuel line at filter/regulator. Refer to Quick-Connect Fittings for procedures.
4. Remove retainer clamp from top of filter/regulator. Clamp snaps to tabs on pump module. Discard old clamp.
5. Pry filter/regulator from top of pump module with 2 screwdrivers. Unit is snapped into module
6. Discard gasket below filter/regulator.
   1. Before discarding filter/regulator assembly, inspect assembly to verify that O-rings are intact. If the smallest of the two O-rings can not be found on bottom of filter/regulator, it may be necessary to remove it from the fuel inlet passage in fuel pump module.
   INSTALLATION
   
   1. Clean recessed area in pump module where filter/regulator is to be installed.
   2. Obtain new filter/regulator (two new O-rings should already be installed)
   3. Apply a small amount of clean engine oil to O-rings. Do not install O-rings separately into fuel pump module. They will be damaged when installing filter/regulator.
   4. Install new gasket to top of fuel pump module.
   5. Press new filter/regulator into top of pump module until it snaps into position (a positive click must be heard or felt).
   6. The arrow molded into top of fuel pump module should be pointed towards front of vehicle (12 O'clock position).
   7. Rotate filter/regulator until fuel supply tube (fitting) is pointed towards front of vehicle (12 O'clock position).
   8. Install new retainer clamp (clamp snaps over top of filter/regulator and locks to flanges on pump module).
   9. Connect fuel line at filter/regulator. Refer to Quick-Connect Fittings for procedures.
   10. Install fuel tank. Refer to Fuel Tank Removal/Installation.

WARNING: THE FUEL SYSTEM IS UNDER CONSTANT FUEL PRESSURE EVEN WITH THE ENGINE OFF. THIS PRESSURE MUST BE RELEASED BEFORE SERVICING FUEL TANK .

Two different procedures may be used to drain fuel tank (lowering tank or using DRB scan tool).

The quickest draining procedure involves lowering the fuel tank.

As an alternative procedure, the electric fuel pump may be activated allowing tank to be drained at fuel rail connection. Refer to DRB scan tool for fuel pump activation procedures. Before disconnecting fuel line at fuel rail, release fuel pressure. Refer to the Fuel System Pressure Release Procedure for procedures. Attach end of special test hose tool number 6541, 6539, 6631 or 6923 at fuel rail disconnection (tool number will depend on model and/or engine application). Position opposite end of this hose tool to an approved gasoline draining station. Activate fuel pump and drain tank until empty.

If electric fuel pump is not operating, tank must be lowered for fuel draining. Refer to following procedures.

FUEL TANK REMOVAL

1. Disconnect negative battery cable at battery.
2. Release fuel system pressure. Refer to the Fuel System Pressure Release.
3. Raise and support vehicle.
4. If Equipped: Remove fuel tank skid plate.
5. Remove 4 fuel hose shield mounting bolts and remove fuel hose shield from body.
   1. Remove fuel tank fill hose and vent hose clamps at fuel tank filler tube. Remove both hoses at fuel filler tube.
   2. Remove exhaust tailpipe heat shield mounting bolts and remove shield. CAUTION: To protect fuel tank from exhaust heat, this shield must reinstalled after tank installation.
   3. Place a hydraulic jack to bottom of fuel tank. WARNING: PLACE A SHOP TOWEL AROUND FUEL LINES TO CATCH ANY EXCESS FUEL .
      1. Disconnect fuel supply line from fuel extension line near front of fuel tank. Refer to Fuel Tubes/Lines/Hoses and Clamps. Also refer to Quick-Connect Fittings for procedures.
      2. Disconnect EVAP canister vent line near front of tank.
      3. Disconnect fuel pump module electrical connector (pigtail harness) near front of tank. Harness connector is clipped to body.
         1. Remove two fuel tank strap nuts. Position both tank support straps away from tank.
         2. Carefully lower right side of tank while feeding both fuel hoses through access hole in body. Fuel Tank Full And Not Drained Using DRB Scan Tool: To prevent fuel loss through hoses, keep left side of tank higher than right side while lowering. Do not allow hose openings to drop lower than top of tank.
         3. Continue lowering tank until clear of vehicle. Place tank on floor with left side (hose side) higher than right side
            1. Drain tank by removing fuel fill hose at tank. Fuel fill hose is largest of 2 hoses. Insert the drain hose (from an approved gasoline draining station) into hose opening. Drain tank until empty.
            2. If fuel pump module removal is necessary, refer to Fuel Pump Module Removal/installation for procedures.
            INSTALLATION
            
            1. If fuel pump module is being installed, refer to Fuel Pump Module Removal/installation for procedures.
            2. Install fuel fill/vent hoses to tank fittings. To prevent hose from kinking, rotate each hose until index mark on hose is aligned to index tang on fuel tank.
            3. Install hose clamps to hoses. Position clamps between index marks on each hose.
            4. Position fuel tank to hydraulic jack.
            5. Raise tank into position while guiding fuel fill and vent hoses into and through access hole in body.
            6. Continue raising tank until positioned to body.
            7. Attach two fuel tank mounting straps and mounting nuts. Tighten nuts to 10 Nm (90 in. lbs.) torque. Do not over tighten nuts.
            8. Install both fuel hoses to fuel fill tube. Tighten both retaining clamps.
            9. Position fuel hose shield to body. Install and tighten 4 mounting bolts.
            10. Connect fuel pump module pigtail harness electrical connector near front of tank.
            11. Connect fuel pump module supply line near front of tank. Refer to Quick-Connect Fittings for procedures.
            12. Connect EVAP hose near front of tank.
            13. Install exhaust tailpipe heat shield.
            1. Install fuel tank skid plate (if equipped).
            1. Lower vehicle and connect battery cable to battery.