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Posted on Dec 03, 2016

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Posted on Jan 02, 2017

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Keep putting in fuel pumps on 2007 buick rendevous and they work for a day or so and they fail? Could it be something other than the fuel pump?


Electrical problem ! Unless your using cheap fuel pumps . Did you try a Delco GM fuel pump . Do a voltage drop test on fuel pump electrical circuir also amp draw . Testing Electric Fuel Pump Problems with Voltage Drop Test

Jan 23, 2017 | 2007 Buick Rendezvous

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Looking to change from vac. fuel pump to elec, pump


Tylon, Go for it, Electric pump may fix some difficult starting issues. Check the attached links,instruction and guides, Good luck
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2005 Jeep Liberty not getting gas to fuel pump, all sensors good, fuel pump good. Is there a ASD on this vehicle?


Not getting gas TO the fuel pump ? Yes there is a ASD - auto shut down relay ,but has nothing to do with fuel pump power . Check the fuel pump relay . Videos on you tube testing fuel pump electrical circuit . Fuel Pump Electrical Circuits Description and Operation

Jul 24, 2016 | Jeep Cars & Trucks

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How to change 1984 chrysler new yorker 2.6l from an electric fuel pump to a mechanical fuel pump.


Replace the mechanical pump with a new unit and that will remove any reason of broken/failure from the equation. Remove the electric pump altogether and leave 1 filter in the line before the mechanical pump. Mechanical pumps are not in favour with some people who have no idea that they can be adjusted to give more pressure and greater volume for the bigger capacity engines. Some mechanical pumps are more expensive to repair / replace but if you price an electric pump to supply the volume that a properly adjusted or a larger capacity mechanical pump then the cost saving is minimal. Unless you get a fuel filter that is rated with a smaller micron rating than the standard filter any number of filters will not work as the smallest particle will get through the lot

Nov 21, 2013 | Cars & Trucks

1 Answer

Ran out of fuel. Filled the car with about six gallons of fuel, but the car will start for split second then nothing..


what kind of car you have, der are two kinds of fuel pump, electric fuel pump and manual fuel pump, electric fuel pump after you filled fuel key to ignition about 1 mins, because the gasoline pump the electric fuel pump, manual fuel pump start your car then wait the gasoline until in comes to fuel filter, if dis are not helpful try to disconnect gasoline hose from carburator, then used compressed air to blow gasoline tank, may be your hose is black of small piece of dirt.

Oct 29, 2012 | 1997 Mercedes-Benz C-Class

1 Answer

Lost electrical power to fuel pump


There are many reasons why fuel pumps have no power, most (in tank) fuel pumps fail due to low fuel inside of tank.

These fuel pumps turn at an alarming rate which in turn causes an alarming amount of heat. This heat is then dissipated by the fuel inside of the tank itself.If the driver/operator allows to run the fuel very low and continue to do so, this will over time allow for the fuel pump to overheat due to the ONLY source used to cool the fuel pump is the fuel inside of the fuel tank itself. Electrically, view the operator's manual or similar source to locate fuel pump fuse and/or relay of which will open the electrical path when the fuel pump overheats.
This should be a pretty good starting point to locate/isolate electrical issue you may be experiencing.

Good Hunting to you & hope this gets you back on the road soon!
FASTESTNASCAR

Dec 27, 2011 | 1987 Mercedes-Benz Mercedes Benz 190 Class

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.


0900c15280053dd7.jpg enlarge_icon.gifenlarge_tooltip.gif

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.



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


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


0900c15280053dda.jpg enlarge_icon.gifenlarge_tooltip.gif

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.



0900c15280053ddb.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 5: High pressure external fuel pump

Feb 12, 2011 | 1985 Mercury Grand Marquis

1 Answer

Where is the fuel pump relay located at


Usually located inside or near the fuel tank

-quote-
There are two types of fuel pumps. It may be a mechanical pump or an electric pump. In earlier days, mechanical pump was used for vehicles. The mechanical fuel pump can be found in the camshaft of your vehicle's engine. Nowadays the diesel fuel pump has become an electrical component and also is available as a small size device which can be seen inside the fuel tank. The power required for the electric fuel pump is got from the car's battery. The main function of the fuel pump is to push the gasoline to the engine by creating a positive pressure.
-end quote-
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Sep 24, 2010 | 1991 Honda Accord

2 Answers

Where is fule pump at on a 1985 ford ltd


BACK IN 1985 FORD MOUNTED FUEL PUMP IN 3 LOCATION.IT HAD MECHANICAL FUEL PUMP BOLTED ON THE ENGINE.ELECTRIC EXTERNAL FUEL PUMP.ON THE OUTSIDE OF FUEL TANK.THE INTERNAL ELECTRIC FUEL PUMP.ON THE INSIDE OF FUEL TANK.

Oct 06, 2009 | 1985 Ford LTD

3 Answers

Lucida estima


Electric. All fuel injected vehicle must have an electric pump.

Jun 10, 2008 | 1993 Toyota Previa

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