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How 2 change the rubber hose fuel line on bottom of pump on 472 engine

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Most likely your fuel system is about 150psi fuel pressure. So it is no ordinary rubber fuel line unless it is the old carbureted engine. If the low pressure system at a pump pressure of 4 to 5psi, then yes you can change with an ordinary rubber fuel resistant fuel line.

Posted on Apr 01, 2015

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Posted on Jan 02, 2017

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1 Answer

How do I change feul pump 97 chevy lumina 3.1 l


You must remove the fuel tank which is underneath the trunk. Here's the procedure for removing the pump.

REMOVAL:

1. Before servicing the fuel pump the fuel system pressure must be relieved.
2. Disconnect the negative battery cable.
3. Raise the car on a hoist.
4. Remove the fuel tank.
5. Remove the fuel tank sending unit and pump assembly by turning the cam lock ring counterclockwise. Lift assembly from the fuel tank.
6. Pull the fuel pump up into the attaching hose while pulling outward away from the bottom support. Take care to prevent damage to the rubber insulator and strainer during removal. After the pump assembly is clear of the bottom support, pull the pump assembly out of the rubber connector for removal.

NOTE: Inspect the fuel pump attaching hose for any signs of deterioration. Also check the rubber sound insulator at the bottom of the pump. Replace damaged or deteriorated parts.

INSTALLATION:

1. Push the fuel pump assembly into the attaching hose.
2. Position the fuel tank sending unit and pump assembly into the fuel tank. Use a new "O" ring seal.

NOTE: Care should be taken not to fold over or twist the strainer when installing the sending unit as this will restrict the flow of fuel. Also, verify that the strainer does not block the full travel of the float arm.

3. Install cam lock over the assembly and lock by turning clockwise.
4. Reinstall fuel tank.

May 09, 2017 | Cars & Trucks

1 Answer

How To Drain Fuel Tank On 2005 Jeep Liberty Gas Tank


here is the Cherokee page.
read chapter, 14, page 19 on..
shows all way there, and is not easy.
why do this.
is pressure low
pump dead
is there 12vdc to pump cranking, (no? then dont do this)

http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

i have the KJ pages here. (line # messed up)
Two different procedures may be used to drain fuel
tank: through the fuel fill fitting on tank, or using a
scan tool.
The quickest draining procedure involves removing
the rubber fuel fill hose (7) (Fig. 25) from fuel tank
fitting.
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, fuel must be
drained through fuel fill fitting at tank. Refer to following
procedures.
(1) Release fuel system pressure.
(2) Raise vehicle.
(3) If equipped, remove fuel tank skid plate.
(4) Thoroughly clean area around fuel fill fitting
(6) (Fig. 26) and rubber fuel fill hose (1) at side of
fuel tank. After cleaning, loosen fuel fill hose clamp
(2) at tank.
(5) Before removing rubber hose (1) (Fig. 26) from
fitting, note hose orientation while referring to marks
(3) and (4).
6) Disconnect rubber fuel fill hose at fuel tank fitting
(2) (Fig. 27). Using an approved gas holding
tank, drain fuel tank through this fitting.
Tank Removal
(1) If equipped, remove fuel tank skid plate and
tow hooks. Certain equipment packages will also
require removal of the trailer hitch. Refer to Tow
Hooks, Trailer Hitch or Skid Plate in 23, Body for
removal/installation procedures.
(2) Disconnect and separate fresh air tube (6) (Fig.
28) quick-connect fitting.
(3) Disconnect air tubes at front of NVLD pump
(9) (Fig. 28).
(4) Disconnect NVLD pump (9) (Fig. 28) electrical
connector.
(5) Disconnect fuel pump module electrical connector
jumper. This is located near front of fuel tank.
(6) Support tank with a hydraulic jack.
(7) Remove 4 fuel tank strap bolts (10) (Fig. 28) (2
at front of tank; 2 at rear of tank), and remove both
tank support straps.
(8) Carefully lower tank a few inches.
(9) Continue lowering tank while guiding remaining
hoses and lines through plastic isolator sleeve (3)
(Fig. 29).
(10) If fuel tank is to be replaced, remove NVLD
pump and fuel pump module from tank. Refer to
Fuel Pump Module Removal/Installation procedures.
end , tank out.

why not login to alldata.com and read
or buy the FSM,, and get all pages of chapter 14, end to end.

Oct 19, 2015 | 2005 Jeep Liberty

1 Answer

Diameter of fuel line for 1995 carolla


Are you talking the Fuel Line (Metal) or Hose (Rubber)?

Here are some facts you need to know to work with the OEM fuel lines.
  1. The threaded fittings used in the fuel system are a bit strange considering this is a Japanese vehicle. There are two fitting sizes used: 1/8-28 BSPT (Yes the first one is a British Pipe thread!) and 13mm x 1.5. (The diameter I measured on this fitting is .504, which is larger than a 12mm fitting (.472), but smaller than a 14mm (.532) This would logically make it a 13mm. It it NOT a 1/4-BSPT as I had orginally thought.) There appears to be no such thing as a 13mm compression fitting available for purchase. If you should find a source for these, PLEASE let me know!
  2. The female threads on the carb inlet, glass fuel filter inlet and outlet, and the fuel pump inlet and outlet are 1/8-28 BSPT. (So are the intake manifold small threaded holes and the block holes for the oil pressure sensor and oil lines. )
  3. There are two thread adapters (Toyota calls these Unions) used in the Cruiser fuel line system: a straight female 1/8-28 BSPT to 13mm x 1.5, and a 90 degrees female 1/8-28 BSPT to 13mm x 1.5. The 90 degree fitting is only used on the fuel pump outlet to adapt the fuel pump to the hard line.
  4. The OEM hard fuel line is 8mm in diameter (.314"). 5/16" (.312") is close enough in size to not matter much.
  5. OEM soft (rubber or the clear plastic) fuel lines are no longer available.

Apr 06, 2013 | 1995 Toyota Corolla

1 Answer

How to change a fuel pump on a 1992 Toyota carolla


Electric Fuel Pump-Fuel Injected REMOVAL & INSTALLATION The electric fuel pump is contained within the fuel tank. On 1988-92 models, it is necessary to remove the fuel tank from the vehicle in order to reach the pump. On 1993-97 models, the fuel pump can be accessed by removing the rear seat cushion and service hole cover. 1988-92 Models Fig. 1: Exploded view of the electric fuel pump 88275g77.gif
NOTE: Before disconnecting fuel system lines, clean the fittings with a spray-type engine cleaner. Follow the instructions on the cleaner. Do not soak fuel system parts in liquid cleaning solvent. CAUTION
The fuel injection system is under pressure. Release pressure slowly and contain spillage. Observe "no smoking/no open flame'' precautions. Have a Class B-C (dry powder) fire extinguisher within arm's reach at all times.
  1. Disconnect the negative battery cable and relieve the fuel pressure. Remove the filler cap.
  2. Remove the fuel tank from the vehicle.
  3. Remove the fuel pump bracket attaching screws, then remove the fuel pump/bracket assembly from the tank. Fig. 2: Remove the bolts retaining the pump bracket to the fuel tank 88275g78.gif

  4. Pull the lower side of the fuel pump from the bracket.
  5. Remove the nuts attaching the wires to the fuel pump.
  6. Disconnect the hose from the pump.
  7. Separate the filter from the pump. Use a small screwdriver to remove the attaching clip. Fig. 3: Pull off the lower portion of the pump from the bracket 88275g79.gif
    Fig. 4: If necessary, remove the clip and pull out the filter to replace it 88275g80.gif

  8. While the tank is out and disassembled, inspect it for any signs of rust, leakage or metal damage. If any problem is found, replace the tank.
  9. Inspect all of the lines, hoses and fittings for any sign of corrosion, wear or damage to the surfaces. Check the pump outlet hose and the filter for restrictions.
  10. When reassembling, ALWAYS replace the sealing gaskets with new ones. Also replace any rubber parts showing any sign of deterioration. To install:
  11. Install the pump filter using a new clip. Install the rubber cushion under the filter.
  12. Connect the outlet hose to the pump, then attach the pump to the bracket.
  13. Connect the wires to the fuel pump with the nuts.
  14. Install the fuel pump and bracket assembly onto the tank. Use new gaskets.
  15. Install the fuel tank.
  16. Start the engine and check carefully for any sign of leakage around the tank and lines. Road test the vehicle for proper operation.
1993-97 Models CAUTION
The fuel injection system is under pressure. Release pressure slowly and contain spillage. Observe no smoking/no open flame precautions. Have a Class B-C (dry powder) fire extinguisher within arm's reach at all times. Fig. 5: Exploded view of the fuel pump components 88275g81.gif
  1. Disconnect the negative battery cable. CAUTION
    On models with an airbag, wait at least 90 seconds from the time that the ignition switch is turned to the LOCK position and the battery is disconnected before performing any further work. Refer to Section 7 for all air bag warnings.
  2. Relieve the fuel pressure.
  3. Remove the rear seat cushion.
  4. Remove the floor service hole cover. Fig. 6: Remove the 4 service hole cover retaining screws 88275g82.gif

  5. Disconnect the electrical fuel pump wiring at the fuel pump assembly. Check for any fuel leakage while in there.
  6. Remove the gas cap, this will prevent any fuel gas spilling out of any high pressure lines.
  7. Using SST 09631-22020 or an equivalent line (flare nut) wrench, disconnect the outlet pipe from the pump bracket. Fig. 7: Disconnect the outlet pipe from the pump bracket 88275g83.gif

  8. Remove the pump bracket attaching screws.
  9. Disconnect the return hoses from the pump bracket, then pull out the pump/bracket assembly.
  10. Remove the nut and spring washer, then disconnect the wires from the pump bracket.
  11. Remove the sending unit attaching screws, then remove the unit from the bracket. Fig. 8: Pull the pump bracket with pump attached from the tank 88275g84.gif

  12. Pull the lower side of the fuel pump from the bracket.
  13. Unplug the connector to the fuel pump.
  14. Disconnect the hose from the pump.
  15. Separate the filter from the pump. Use a small screwdriver to remove the attaching clip.
  16. Inspect all of the lines, hoses and fittings for any sign of corrosion, wear or damage to the surfaces. Check the pump outlet hose and the filter for restrictions.
  17. When reassembling, ALWAYS replace the sealing gaskets with new ones. Also replace any rubber parts showing any sign of deterioration. To install:
  18. Install the pump filter using a new clip. Install the rubber cushion under the filter.
  19. Connect the outlet hose to the pump, then attach the pump to the bracket and tighten to 22-25 ft. lbs. (29-34 Nm).
  20. Engage the connector to the fuel pump.
  21. Install the fuel sending unit to the pump bracket.
  22. Install the fuel pump and bracket assembly onto the tank. Use new gaskets. Tighten the pump bracket retaining screws to 34 inch lbs. (4 Nm).
  23. Connect the return hoses to the pump bracket.
  24. Install the service hole cover, then the engage the fuel pump and sending unit connector.
  25. Install the rear seat cushion.
  26. Start the engine and check carefully for any sign of leakage around the tank and lines. Road test the vehicle for proper operation.
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Jan 24, 2011 | 1992 Toyota Corolla

1 Answer

Where is the fuel pump located on a 92 Lexus SC300?


Fuel Pump REMOVAL AND INSTALLATION ES300 CAUTION
Fuel injection systems remain 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.
  2. With the ignition switch in the LOCK position, disconnect the negative battery terminal. If equipped with an air bag system, wait at least 90 seconds or longer before performing any other work.
  3. Remove the rear seat cushion.
  4. Disconnect the fuel pump connector. CAUTION
    The Supplemental Inflatable Restraint (SIR) system must be disarmed before removing the fuel pump. Failure to do so may cause accidental deployment of the air bag, resulting in unnecessary SIR system repairs and/or personal injury.
  5. Remove the floor service hole cover. NOTE: Do not lift the fuel pump assembly up using the wire harness.
  6. Remove the fuel filler cap. Disconnect the fuel outlet pipe and the return hose from the pump bracket.
  7. Remove the 8 screws and lift out the pump/bracket assembly with gasket.
  8. Remove the fuel pump lead wire.
  9. Pull the lower end of the pump off of the bracket.
  10. Disconnect the fuel hose from the pump and remove the pump.
  11. Remove the rubber cushion from the pump. To install:
  12. Install the filter and rubber cushion on the new pump and install the pump on the bracket.
  13. Connect the fuel hose and the wire connector on the pump.
  14. Using a new gasket, install the pump and tighten the eight screws to 35 inch lbs. (4 Nm).
  15. Connect the fuel pipe and return hose to the pump and tighten the bolts to 22 ft. lbs. (29 Nm).
  16. Connect the wire, install the service cover and replace the rear seat.
  17. Connect the negative battery cable.
  18. Start the engine and check for leaks. Fig. 1: Fuel pump assembly - ES300 294126.gif
GS300, LS400, SC300 and SC400
  1. Disconnect the negative battery cable. Wait at least 90 seconds before performing any other work.
  2. Remove the trunk floor mat.
  3. Remove the trunk trim cover.
  4. Disconnect the fuel pump electrical connector.
  5. Remove the rear seat bottom and seat back.
  6. Remove the partition cover.
  7. Remove the mounting bolts and remove the fuel pump set plate.
  8. Remove the three nuts and disconnect the fuel pump bracket from the tank.
  9. Disconnect the fuel hose from the bracket. Remove the pump, bracket and set plate as an assembly. To install:
  10. Install a new gasket on the set plate. Connect the fuel hose to the pump and bracket,
  11. Install the pump and bracket assembly with the three nuts; tighten the nuts to 48 inch lbs. (5 Nm). Install the set plate and tighten the bolts to 26 inch lbs. (3 Nm).
  12. Install the panel partition
  13. Install the rear seat cushion and back.
  14. Connect the fuel pump electrical connector.
  15. Install the trim panel.
  16. Install the spare tire and the trunk floor mat.
  17. Connect the negative battery cable.
  18. Start the engine; check the fuel system for leaks
  19. Road test the vehicle for proper operation.

Oct 13, 2010 | 1992 Lexus Sc 300

1 Answer

Where is fuel pump located


Electric Fuel Pump REMOVAL & INSTALLATION CAUTION
The 220 TBI unit has a bleed in the pressure regulator to relieve pressure any time the engine is turned off, however a small amount of fuel may be released when the fuel line is disconnected. As a precaution, cover the fuel line with a cloth and dispose of properly. Fig. 1: Electric fuel pump - TBI engines 84905028.gif
  1. With the engine turned OFF, relieve the fuel pressure at the pressure regulator. Refer to the fuel relief procedure in this section.
  2. Disconnect the negative battery cable.
  3. Raise and support the rear of the vehicle on jackstands.
  4. Drain the fuel tank, then remove it.
  5. Using a hammer and a drift punch, drive the fuel lever sending device and pump assembly locking ring (located on top of the fuel tank) counterclockwise. Lift the assembly from the tank and remove the pump from the fuel lever sending device.
  6. Pull the pump up into the attaching hose while pulling it outward away from the bottom support. Be careful not to damage the rubber insulator and strainer during removal. After the pump assembly is clear of the bottom support, pull it out of the rubber connector. To install:
  7. Connect the fuel pump to the hose. NOTE: Be careful that you don't fold or twist the strainer when installing the sending unit, or you'll restrict fuel flow.
  8. Install a new O-ring on the pump assembly and then position them into the fuel tank.
  9. Turn the locking ring clockwise until its tight.
  10. Install the fuel tank and connect the battery cable.
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Oct 13, 2010 | 1988 GMC Jimmy

2 Answers

I have a 1989 f250 with a 7.3 90k on it a/t no tubo if it sit for 6 to 8 huors some time starts up and then dies it acts like the fuel is gone and it take alot of cranking to get it fire up but it runs...


It sounds like an air leak in the **** side of the pump, it can cope with some air when running without any misfire, the fuel will run back to the tank after time and need re priming. Has anything been changed in the fuel system lately?

Aug 10, 2010 | 1989 Ford F 350

3 Answers

What is a good way to troubleshoot a possible fuel pump failure before going out and just buying the part


The best way would be to use a fuel pressure gauge to read the fuel pressure while the engine was running, but you can also try this, when the engine does not start and you suspect the fuel pump to be the problem, then remove a vacuum line from the intake manifold and spray some carburetor spray (has to say extremely flammable on the spray can to work) into the intake manifold and then see if the engine starts, if the engine does start and run for a few seconds on the carburetor spray then there is a fuel delivery problem.

However, and I have found this to be the case with the majority of the 4-Runners that I have worked on,
there seems to be a defect in the rubber fuel line that is attached between the fuel pump and the the metal fuel line that is located on the fuel pump assembly inside of the fuel tank and they all seem to split wide open on the sides and this seems to be a very common problem for those 4-Runners, and that is even why the fuel pump can show as faulty on a fuel pressure gauge, I would certainly not be surprised one bit to find out that the rubber fuel line between the fuel pump and the metal fuel line has a big split down the side of it and is causing the fuel pump to pump more fuel back into the fuel tank than into the fuel line, and it will not be able to supply enough fuel or fuel pressure to the fuel injectors.

If you do drop the fuel tank down to replace the fuel pump, be sure to inspect the rubber line well between the fuel pump and the metal fuel line before you actually purchase a new fuel pump, and most of the time the problem is just that the small piece of rubber fuel line needs to be replaced. (Use fuel injection fuel line only, and compression type "smooth" hose clamps if you can find them)

Jun 18, 2010 | 1990 Toyota 4Runner

1 Answer

I need to replace the fuel pump in my 1985 Chevy S10 pickup, need all help. What is the procedures?


EXACT PROCEDURE ! Please Rate Me Fairly for this!! Thank you And Good Luck !!


ELECTRIC PUMP

REMOVAL
  1. Before servicing the fuel pump the fuel system pressure must be relieved. See: Fuel Pressure Release
  2. Disconnect the negative battery cable.
  3. Raise the car on a hoist.
  4. Remove the fuel tank. See Fuel Tank / Service and Repair.
  5. Remove the fuel tank sending unit and pump assembly by turning the cam lock ring counterclockwise. Lift assembly from the fuel tank.
  6. Pull the fuel pump up into the attaching hose while pulling outward away from the bottom support. Take care to prevent damage to the rubber insulator and strainer during removal. After the pump assembly is clear of the bottom support, pull the pump assembly out of the rubber connector for removal. NOTE: Inspect the fuel pump attaching hose for any signs of deterioration. Also check the rubber sound insulator at the bottom of the pump. Replace damaged or deteriorated parts.
INSTALLATION
  1. Push the fuel pump assembly into the attaching hose.
  2. Position the fuel tank sending unit and pump assembly into the fuel tank. Use a new "O" ring seal. NOTE: Care should be taken not to fold over or twist the strainer when installing the sending unit as this will restrict the flow of fuel. Also, verify that the strainer does not block the full travel of the float arm.
  3. Install cam lock over the assembly and lock by turning clockwise.
  4. Reinstall fuel tank.
MECHANICAL PUMP

REMOVAL and INSTALLATION

NOTE: To ease pump installation, rotate the camshaft so the camshaft eccentric is out of the way of the fuel pump rocker arm.

  1. Disconnect fuel lines from fuel pump.
  2. Remove fuel pump mounting bolts and the fuel pump.
  3. Remove all gasket material from the pump and block gasket surfaces. Apply sealer to both sides of new gasket.
  4. Position gasket on pump flange and hold pump in position against its mounting surface. Make sure rocker arm is riding on camshaft eccentric.
  5. Press pump tight against its mounting. Install retaining screws and tighten them alternately.
  6. Connect fuel lines. Then operate engine and check for leaks.

Mar 22, 2009 | 1985 Chevrolet S-10

1 Answer

Fuel filter


follow the gas line from the engine to the bottom and to the tank, usually it locate at the bottom of the car with 2 rubber either 1/4" or 5/16" hoses with two clamps to connect the fuel filter, but when you change it, be careful not let gasoline get into your eyes.

Jul 07, 2008 | 1998 Pontiac Bonneville

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