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Need to install a fuel sending unit on 68 biuck electra 225 do I have to pull the fuel tank?

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Yes

Posted on May 18, 2011

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Fuel pump replacement


Fuel Pump - Multi-Port Fuel Injection models REMOVAL & INSTALLATION 1984-95 Models Fig. 1: Loosen the hose clamps and tag the fuel hoses before disconnecting them . . . 91075p07.jpg
Fig. 2: . . . then detach the hoses from the fuel pump module/sending unit 91075p06.jpg
Fig. 3: Disengage the fuel pump module/sending unit wiring harness connector 91075p05.jpg
  1. Disconnect the negative battery cable.
  2. Remove the fuel tank filler cap.
  3. Relieve the fuel system pressure as outlined in this section.
  4. Drain the fuel from the fuel tank.
  5. Raise and support the rear end on jackstands.
  6. Remove the fuel inlet and outlet hoses from the sending unit. Be ready to catch any spilled fuel.
  7. Disengage the sending unit wires. Fig. 4: The fuel pump module/sending unit retaining ring must be rotated counterclockwise for removal 91075p01.jpg

  8. Using a brass punch and hammer, remove the sending unit retaining lockring by tapping it counterclockwise. Fig. 5: Carefully pull the fuel pump module/sending unit out of the fuel tank - step shown with the fuel tank mounted on the vehicle 91075p03.jpg
    Fig. 6: Remove and discard the fuel pump module O-ring gasket 91075p02.jpg

  9. Remove the sending unit, which incorporates the electric fuel pump, along with the O-ring seal from the fuel tank. Discard the O-ring.
  10. Remove and discard the pump inlet filter.
  11. Disengage the fuel pump terminal wires.
  12. Remove the pump outlet hose and clamp.
  13. Unfasten the pump top mounting bracket nut and remove the pump. To install:
  14. Install a new inlet filter on the pump. Fig. 7: This is the proper positioning of the fuel pump module assembly inside the fuel tank 86745g55.gif

  15. Assemble the pump and bracket. Connect the hose and wiring.
  16. Install the unit and new O-ring in the tank. The rubber stopper on the end of the fuel return tube must be inserted into the cup in the fuel tank reservoir.
  17. Install the lockring. Carefully tap it into place until it seats against the stop on the tank.
  18. Connect the hoses.
  19. Engage the wiring.
  20. Lower the vehicle, fill the tank, run the engine and check for leaks.
1996-98 Models Fig. 8: Fuel pump module location - 1996 model shown 86745g52.gif
  1. Drain and remove the fuel tank as outlined in this section.
  2. Using tool 6856 or its equivalent, remove the module locknut which is threaded onto the fuel tank. The module will spring up when the nut is removed.
  3. Remove the module. To install:
  4. Install a new gasket and place the module into the opening in the fuel tank.
  5. Position a new locknut on top of the module and tighten the nut using tool 6856 or its equivalent to 40 ft. lbs. (54 Nm).
  6. Install the fuel tank as outlined in this section. Fig. 9: Locknut removal using tool 6856 or its equivalent 86745g56.gif
    Fig. 10: Install a new gasket on the fuel tank opening 86745g57.gif
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Jan 19, 2011 | 1993 Jeep Grand Cherokee

1 Answer

My digital gas gage reads full all the time I have to go by my miles and sometimes that don't work and I run out of gas..how do I fix my problem


This is a common problem and to correct this problem will require the replacement of the fuel sending unit. The fuel sending unit is inside the fuel tank and has the fuel pump mounted in it. This requires the removal of the gas tank and then the fuel sending unit can be removed from the tank.

REMOVAL AND INSTALLATION Fig. 1: Fuel pump unit 8470h037.gif
  1. Disconnect the negative battery cable.
  2. Relieve fuel system pressure.
  3. Remove fuel filler cap to release fuel tank vapors. Leave cap off until repairs are completed. Gasoline fuel vapors are extremely flammable. Ensure that fuel is stored in a container that can be properly sealed. Never store fuel in an open container. Store container in a safe place away from heat.
  4. Remove fuel tank by performing the following:
    1. Step 1: Drain fuel from the tank into an approved container for storage.
    2. Step 2: Raise and safely support the vehicle.
    3. Step 3: Remove rear stabilizer bar at links, pivot bar downward.
    4. Step 4: Remove hoses and pipes from tank unit.
    5. Step 5: Remove hoses at tank from filler and vent pipe.
    6. Step 6: Disconnect tank unit harness from rear body harness.
    7. Step 7: Support fuel tank and disconnect 2 fuel tank retaining straps.
    8. Step 8: Remove tank from vehicle.
  5. Remove sending unit, gasket and pump assembly by turning cam lock ring counterclockwise. Lift assembly from fuel tank and remove fuel pump from fuel tank sending unit.
  6. Pull fuel pump up into attaching hose while pulling outward away from bottom support. Take care to prevent damage to rubber insulator and strainer during removal. After pump assembly is clear of bottom support, pull pump assembly out of rubber connector for removal. To install:
  7. Push fuel pump assembly into attaching hose.
  8. Install fuel tank sending unit and pump assembly into tank assembly. Use new O-ring seal during reassembly.
  9. Install cam lock over assembly and lock by turning clockwise.
  10. Support tank and position in vehicle. Install tank straps and secure with retaining bolts. Tighten to 25 ft. lbs. (33 Nm).
  11. Connect tank unit harness to body harness.
  12. Connect hoses to filler and vent pipes. Tighten clamps.
  13. Connect hoses and pipes to tank unit.
  14. Connect rear stabilizer bar to links. Tighten bolts to 42 ft. lbs. (58 Nm).
  15. Lower vehicle.
  16. Refill tank and install filler cap.
  17. Connect negative battery cable.
  18. Start engine and check for leaks.

Dec 24, 2010 | 1992 Oldsmobile Toronado

1 Answer

I JUST WOULD LIKE TO KNOW WHERE A FUELPUMP IS LOCATED ON MY 1999 GMC JIMMY TO SEE IF I CAN REPLACE IT ON MY OWN. THANK YOU!


it's inside the tank. Please let me know if you have more questions.


FUEL TANK REMOVAL & INSTALLATION
Except With Shield Package

  1. Properly drain the fuel tank, then disconnect the negative battery cable.
  2. If not done already, raise and support the rear of the truck safely using jackstands.
  3. If equipped on late-model vehicles, loosen and remove the tank plastic shield.
  4. Loosen the retaining clamp and disconnect the tank filler hose from the tank neck.

If fuel and vapor hoses or pump/sending unit wiring can be accessed at this time, they may be tagged and disconnected. If not, wait for the retaining straps to be loosened and lower the tank slightly for access.
  1. Tag and disconnect and accessible wiring or hoses from the top of the fuel tank.
  2. Have and assistant support the fuel tank, then remove the fuel tank-to-vehicle straps and, if equipped, the isolation strips. If no assistant is available, position a floor jack to support the tank while the straps are removed.
  3. Lower the tank slightly, then remove the sending unit or sending unit/pump wires, hoses and ground strap. Be sure to label all connections to ease installation.
  4. Carefully lower the fuel tank from the vehicle and store in a safe place.


Equipped With Shield Package
  1. Properly drain the fuel tank, then disconnect the negative battery cable.
  2. Raise and support the rear of the truck safely using jackstands.
  3. Remove the shield forward support and bracket.
  4. While supporting the shield and tank assembly with the help of both an assistant and a floor jack, remove the remaining bolts holding the assembly to the frame, then lower it sufficiently for access to the hoses and wires.
  5. Tag and disengage the hoses and wires from the sending unit assembly.
  6. Carefully lower the fuel tank and shield from the vehicle, then if necessary for service or replacement, separate the tank from the shield.


FUEL PUMP REMOVAL & INSTALLATION See Figures 5, 6 and 7

  1. Properly relieve the fuel system pressure.
  2. Connect the negative battery cable.

Be sure to keep a Class B (dry chemical) fire extinguisher nearby.


CAUTION Due to the possibility of fire or explosion, never drain or store gasoline in an open container.

  1. Drain the fuel tank, then remove it from the vehicle. Refer to the procedure found later in this section for details.
  2. Using the GM fuel gauge sending unit retaining cam tool No. J-24187, J-36608 (or equivalent) or a brass drift and a hammer, remove the cam locking ring (fuel sending unit) by twisting counterclockwise. With the locking ring released, carefully lift the sending unit from the fuel tank.
  3. Remove the fuel pump from the fuel sending unit, by performing the following procedures:
    1. Pull the fuel pump up into the mounting tube, while pulling outward (away) from the bottom support.


When removing the fuel pump from the sending unit, be careful not to damage the rubber insulator and the strainer.
    1. When the pump assembly is clear of the bottom support, pull it out of the rubber connector.


To install:
  1. Inspect the fuel pump hose and bottom sound insulator for signs of deterioration, then replace, as necessary.
  2. Push the fuel pump onto the sending tube.
  3. Using a new sending unit-to-fuel tank O-ring, carefully lower the sending unit/fuel pump assembly into the fuel tank.

When installing the sending unit, be careful not to fold or twist the fuel strainer or it may restrict the fuel flow.
  1. Secure the sending unit by turning or driving the lockring clockwise and into position under the tabs.
  2. Install the fuel tank assembly to the vehicle.
  3. Connect the negative battery cable and check for proper pump operation.

e4b833a.gif

Fig. Fig. 5: A special tool is usually available to remove or install the fuel pump locking cam


17a367b.gif

Fig. Fig. 6: A brass drift and a hammer can be used to loosen the fuel pump locking cam



74c9b76.gif


Fig. Fig. 7: Once the locking cam is released it can be removed to free the fuel pump

Oct 24, 2010 | 1999 GMC Jimmy

1 Answer

How do i replce the fuel pump


  1. Properly relieve the fuel system pressure.
  2. Connect the negative battery cable.
  3. Drain the fuel tank, then remove it from the vehicle. Refer to the procedure found later in this section for details.

    Using the GM fuel gauge sending unit retaining cam tool No. J-24187, J-36608 (or equivalent) or a brass drift and a hammer, remove the cam locking ring (fuel sending unit) by twisting counterclockwise. With the locking ring released, carefully lift the sending unit from the fuel tank.

    Remove the fuel pump from the fuel sending unit, by performing the following procedures:
    1. Pull the fuel pump up into the mounting tube, while pulling outward (away) from the bottom support.



    When removing the fuel pump from the sending unit, be careful not to damage the rubber insulator and the strainer.
      1. When the pump assembly is clear of the bottom support, pull it out of the rubber connector.


    To install:
    1. Inspect the fuel pump hose and bottom sound insulator for signs of deterioration, then replace, as necessary.
    2. Push the fuel pump onto the sending tube.
    3. Using a new sending unit-to-fuel tank O-ring, carefully lower the sending unit/fuel pump assembly into the fuel tank.

    When installing the sending unit, be careful not to fold or twist the fuel strainer or it may restrict the fuel flow.
    1. Secure the sending unit by turning or driving the locking clockwise and into position under the tabs.
    2. Install the fuel tank assembly to the vehicle.
    3. Connect the negative battery cable and check for proper pump operation.
NOTE: A special tool is usually available to remove or install the fuel pump locking cam
A brass drift and a hammer can be used to loosen the fuel pump locking cam
Once the locking cam is released it can be removed to free the fuel pump

Sep 24, 2010 | 1999 Oldsmobile Bravada

1 Answer

Is there an access hatch in the floor of a 1996 gmc safari for the fuel pump


no, sorry. Here are the R&R instructions from autozone.com:

The following procedure requires the use of the GM Fuel Gauge Sending Unit Retaining Cam tool No. J-24187 or equivalent.


CAUTION Before removing any component of the fuel system, be sure to reduce the fuel pressure in the system. The pressure regulator contains an orifice in the fuel system; when the engine is turned Off, the pressure in the system will bleed down within a few minutes.

  1. If the fuel system has been in use, turn the ignition switch to OFF and allow the system time to reduce the fuel pressure.
  2. Disconnect the negative battery terminal from the battery.

Be sure to keep a Class B (dry chemical) fire extinguisher nearby.


CAUTION Due to the possibility of fire or explosion, never drain or store gasoline in an open container.

  1. Using a hand pump or a siphon hose, drain the gasoline into an approved container.
  2. Raise and support the vehicle on jackstands.
  3. Support the fuel tank and remove the fuel tank-to-vehicle straps.
  4. Lower the tank slightly, then remove the sender unit wires, the hoses and the ground strap.
  5. Remove the fuel tank from the vehicle.
  6. Using the GM Fuel Gauge Sending Unit Retaining Cam tool No. J-24187 (or equivalent) or a brass drift and a hammer, remove the cam locking ring (fuel sending unit) counterclockwise, then lift the sending unit from the fuel tank.
  7. Remove the fuel pump from the fuel sending unit, by performing the following procedures:
    1. Pull the fuel pump up into the mounting tube, while pulling outward (away) from the bottom support.


When removing the fuel pump from the sending unit, be careful not to damage the rubber insulator and the strainer.
    1. When the pump assembly is clear of the bottom support, pull it out of the rubber connector.


To install:
  1. Inspect the fuel pump hose and bottom sound insulator for signs of deterioration, then replace it, if necessary.
  2. Push the fuel pump onto the sending tube.
  3. Using a new sending unit-to-fuel tank O-ring, install the sending unit into the fuel tank.

When installing the sending unit, be careful not to fold or twist the fuel strainer, for it will restrict the fuel flow.
  1. Using the GM Fuel Gauge Sending Unit Retaining Cam tool No. J-24187 (or equivalent) or a brass drift and a hammer, turn the sending unit-to-fuel tank locking ring clockwise.
  2. Install the fuel tank, align the insulator strips and install the strap bolts. Torque the inner fuel tank strap-to-vehicle bolts to 26 ft. lbs. (35 Nm) and the outer fuel tank strap-to-vehicle nuts/bolts to 26 ft. lbs. (35 Nm).
  3. Connect the fuel lines.
  4. Connect the negative battery cable, start the engine and check for leaks.
  5. Lower the vehicle.

Sep 19, 2010 | 1996 GMC Safari

1 Answer

How do I change the fuel pump in a 1998 S-10 chevy pickup?


The electric pump is attached to the fuel sending unit, located in the fuel tank.

9b87eff.jpg

Fig. 1: Exploded view of the fuel pump and related components used on TBI equipped models (click for zoom)



REMOVAL & INSTALLATION
  1. Properly relieve the fuel system pressure.
  2. Connect the negative battery cable.
Be sure to keep a Class B (dry chemical) fire extinguisher nearby.

CAUTION Due to the possibility of fire or explosion, never drain or store gasoline in an open container.
  1. Drain the fuel tank, then remove it from the vehicle. Refer to the procedure found later in this section for details.
  2. Using the GM fuel gauge sending unit retaining cam tool No. J-24187, J-36608 (or equivalent) or a brass drift and a hammer, remove the cam locking ring (fuel sending unit) by twisting counterclockwise. With the locking ring released, carefully lift the sending unit from the fuel tank.
  3. Remove the fuel pump from the fuel sending unit, by performing the following procedures:
    1. Pull the fuel pump up into the mounting tube, while pulling outward (away) from the bottom support.
When removing the fuel pump from the sending unit, be careful not to damage the rubber insulator and the strainer.
    1. When the pump assembly is clear of the bottom support, pull it out of the rubber connector.
To install:
  1. Inspect the fuel pump hose and bottom sound insulator for signs of deterioration, then replace, as necessary.
  2. Push the fuel pump onto the sending tube.
  3. Using a new sending unit-to-fuel tank O-ring, carefully lower the sending unit/fuel pump assembly into the fuel tank.
When installing the sending unit, be careful not to fold or twist the fuel strainer or it may restrict the fuel flow.
  1. Secure the sending unit by turning or driving the lockring clockwise and into position under the tabs.
  2. Install the fuel tank assembly to the vehicle.
  3. Connect the negative battery cable and check for proper pump operation.

Hope this helps (/remember to rate and comment this).

Sep 17, 2010 | 1998 Chevrolet S-10 Pickup

1 Answer

Can I access the fuelpump through the trunk on a 94 concours c4.6


According to the instructions, it is not accessible through the trunk on the 94 Cadillac --- REMOVAL AND INSTALLATION Fig. 1: Fuel pump unit 8470h037.gif
  1. Disconnect the negative battery cable.
  2. Relieve fuel system pressure.
  3. Remove fuel filler cap to release fuel tank vapors. Leave cap off until repairs are completed. Gasoline fuel vapors are extremely flammable. Ensure that fuel is stored in a container that can be properly sealed. Never store fuel in an open container. Store container in a safe place away from heat.
  4. Remove fuel tank by performing the following:
    1. Step 1: Drain fuel from the tank into an approved container for storage.
    2. Step 2: Raise and safely support the vehicle.
    3. Step 3: Remove rear stabilizer bar at links, pivot bar downward.
    4. Step 4: Remove hoses and pipes from tank unit.
    5. Step 5: Remove hoses at tank from filler and vent pipe.
    6. Step 6: Disconnect tank unit harness from rear body harness.
    7. Step 7: Support fuel tank and disconnect 2 fuel tank retaining straps.
    8. Step 8: Remove tank from vehicle.
  5. Remove sending unit, gasket and pump assembly by turning cam lock ring counterclockwise. Lift assembly from fuel tank and remove fuel pump from fuel tank sending unit.
  6. Pull fuel pump up into attaching hose while pulling outward away from bottom support. Take care to prevent damage to rubber insulator and strainer during removal. After pump assembly is clear of bottom support, pull pump assembly out of rubber connector for removal. To install:
  7. Push fuel pump assembly into attaching hose.
  8. Install fuel tank sending unit and pump assembly into tank assembly. Use new O-ring seal during reassembly.
  9. Install cam lock over assembly and lock by turning clockwise.
  10. Support tank and position in vehicle. Install tank straps and secure with retaining bolts. Tighten to 25 ft. lbs. (33 Nm).
  11. Connect tank unit harness to body harness.
  12. Connect hoses to filler and vent pipes. Tighten clamps.
  13. Connect hoses and pipes to tank unit.
  14. Connect rear stabilizer bar to links. Tighten bolts to 42 ft. lbs. (58 Nm).
  15. Lower vehicle.
  16. Refill tank and install filler cap.
  17. Connect negative battery cable.
  18. Start engine and check for leaks.
prev.gif next.gif

Aug 26, 2010 | Cadillac Escalade ESV Cars & Trucks

2 Answers

How to remove fuel pump on 1988 gmc s 15 pickup


GM S10/S15/Sonoma Pick-Ups 1982-1993 Repair Manual Electric Fuel Pump - REMOVAL & INSTALLATION
  1. Properly relieve the fuel system pressure.
  2. Connect the negative battery cable.
Be sure to keep a Class B (dry chemical) fire extinguisher nearby.

CAUTION Due to the possibility of fire or explosion, never drain or store gasoline in an open container.
  1. Drain the fuel tank, then remove it from the vehicle. refer to the procedure found later in this section for details.
  2. Using the GM fuel gauge sending unit retaining cam tool No. J-24187, J-36608 (or equivalent) or a brass drift and a hammer, remove the cam locking ring (fuel sending unit) by twisting counterclockwise. With the locking ring released, carefully lift the sending unit from the fuel tank.
  3. Remove the fuel pump from the fuel sending unit, by performing the following procedures:
    1. Pull the fuel pump up into the mounting tube, while pulling outward (away) from the bottom support.
When removing the fuel pump from the sending unit, be careful not to damage the rubber insulator and the strainer.
  1. When the pump assembly is clear of the bottom support, pull it out of the rubber connector.
To install:
  1. Inspect the fuel pump hose and bottom sound insulator for signs of deterioration, then replace, as necessary.
  2. Push the fuel pump onto the sending tube.
  3. Using a new sending unit-to-fuel tank O-ring, carefully lower the sending unit/fuel pump assembly into the fuel tank.
When installing the sending unit, be careful not to fold or twist the fuel strainer or it may restrict the fuel flow.
  1. Secure the sending unit by turning or driving the lockring clockwise and into position under the tabs.
  2. Install the fuel tank assembly to the vehicle.
  3. Connect the negative battery cable and check for proper pump operation.

Good luck (remember rated this).

May 24, 2010 | 1988 GMC S-15

2 Answers

I have a Buick Electra 225 with the 430-4 engine.


Simply this is a breather hose
Any good parts store should be able to get you one
Maybe not the chain stores but a good NAPA or other home owned stores

Mar 30, 2010 | 1974 Buick Electra

5 Answers

Where is fuel pump located in 1999 Oldsmobile Bravada?


The electric pump is attached to the fuel sending unit, located in the fuel tank.

bd0ab83.gif
  1. Properly relieve the fuel system pressure.
  2. Connect the negative battery cable.
  3. Drain the fuel tank, then remove it from the vehicle. Refer to the procedure found later in this section for details.

    Using the GM fuel gauge sending unit retaining cam tool No. J-24187, J-36608 (or equivalent) or a brass drift and a hammer, remove the cam locking ring (fuel sending unit) by twisting counterclockwise. With the locking ring released, carefully lift the sending unit from the fuel tank.

    Remove the fuel pump from the fuel sending unit, by performing the following procedures:
    1. Pull the fuel pump up into the mounting tube, while pulling outward (away) from the bottom support.



    When removing the fuel pump from the sending unit, be careful not to damage the rubber insulator and the strainer.
      1. When the pump assembly is clear of the bottom support, pull it out of the rubber connector.


    To install:
    1. Inspect the fuel pump hose and bottom sound insulator for signs of deterioration, then replace, as necessary.
    2. Push the fuel pump onto the sending tube.
    3. Using a new sending unit-to-fuel tank O-ring, carefully lower the sending unit/fuel pump assembly into the fuel tank.

    When installing the sending unit, be careful not to fold or twist the fuel strainer or it may restrict the fuel flow.
    1. Secure the sending unit by turning or driving the lockring clockwise and into position under the tabs.
    2. Install the fuel tank assembly to the vehicle.
    3. Connect the negative battery cable and check for proper pump operation.
NOTE: A special tool is usually available to remove or install the fuel pump locking cam

56ca713.jpg
A brass drift and a hammer can be used to loosen the fuel pump locking cam

3209ccb.jpg
Once the locking cam is released it can be removed to free the fuel pump

7013104.jpg
Thanks for using FixYa - a FixYa rating is appreciated for taking the time to answer your FREE question.

Mar 26, 2009 | 1999 Oldsmobile Bravada

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