Question about 1991 Ford Explorer

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1991 ford explorer fuel pump

I turned off my truck one day and heard a noise so i checked it out.
it was coming from the area around my gas tank and fuel injector atop the engine.
sounds like the fuel pump is running and air is blowing into the carburator...i had to disconnect the battery to get it to stop. i reconnected the carburator and it started again. whats the dealio?

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  • agnt0rnge Jan 01, 2009

    thank you

  • agnt0rnge Jan 05, 2009

    fixxed my problem thank you!

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On 91 Aerostars there was a fuel pump relay on the drivers side that was causing the problem similar to yours and this is how I fixed it:
replace the fuel pump relay on the driver side under the hood

Posted on Jan 01, 2009

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Have you ever heard of fuel in the gas tank making thumping noise when it splashes up and back?


I have not, but I would guess it depends on what type of sender unit they use to let you know the level of gas in the tank. I would think the noise is more pronounced when the tank is closer to empty than full. Usually, the sender unit is part of the fuel pump, so you're looking at a few hundred bucks to get a new one. Turn up the radio :-)

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1987 Ford Econoline fuel system


First check fuse in fuse box that powers fuel pump. If this is ok then turn key but do not start just till gage lights come on and listen for humming noise in gas tank, it will only run a few seconds so you might have to do this several times to hear it. Is best to have someone listen around gas tank area while you turn key..If you do not hear humming noise then this would indicate that pump is not working and needs to be replaced.....good luck and if this info is a help then Please rate my post...

Aug 17, 2012 | Ford Cars & Trucks

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Describe your 1991 ford explorer problem. motor turns over. when air fitler line removed spray ether starts and then dies. whats wrong


It's not getting fuel, when you turn the key, listen for a whine coming from near the gas tank, if you don't her it, you've got a bad fuel pump....

Jun 26, 2011 | 1991 Ford Explorer

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My 1991 saturn has no gas at filter zero gas flow what do i check 1st


First make sure you have lots of gas in the tank, between a quarter and half. Turn the ignition on and listen for a humming or buzzing noise coming from the tank. The fuel pump should run for a few seconds. If there is no noise you will have to check for a blown fuse. No bad fuses, change the fuel pump.
If the pump runs, remove the fuel line from the tank end of the filter and turn the key on for a secoond or 2. If there is lots of fuel then replace the filter. If fuel just dribbles replace the pump.
If you have to work on the fuel pump, make sure the electrical connections are not corroded and are not loose. Also check the rubber hoses at the connection. Sometimes they will go soft and collapse, plugging the fuel line. Make sure you put the fuel lines back on properly. Hope this helps.

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Just replaced the fuel pump on my 95 explorerthe truck cut off while i was driving and wont start up again


first you need to find out if the fuel pump is kicking on or not by turning the key forward (without starting the car) and listening for a humming noise coming from the gastank (your new fuel pump) if no noise is heard, you need to check your connections.

Jun 30, 2010 | 1995 Ford Explorer

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NEED TO REPLACE FUEL PUMP FOR 1996 fORD eXPLORER, V6 4.0. WHERE IS IT AND HOW DO I GET TO IT?


Great SUV, I have the same model; for Ford Ranger/Explorer/Mountaineer 1991-1999 check this procedure to Fuel Pump - REMOVAL & INSTALLATION...
(see Figures 1, 2 and 3)

To gain access to the fuel pump, it is necessary to remove the fuel tank.
  1. Depressurize the fuel system and remove the fuel tank from the vehicle.
  2. Remove any dirt that has accumulated around the fuel pump attaching flange, to prevent it from entering the tank during service.
  3. Turn the fuel pump locking ring counterclockwise using a locking ring removal tool and remove the locking ring.
  4. Remove the fuel pump and bracket assembly.
  5. Remove the seal gasket and discard it.
To install:
  1. Put a light coating of heavy grease on a new seal ring to hold it in place during assembly. Install it in fuel tank ring groove.
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Fig. 1: Fuel pump and sending unit used on the Regular Cab Ranger pick-up

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Fig. 2: Fuel pump and sending unit used on the Super Cab Ranger pick-up

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Fig. 3: Fuel pump and sending unit used on the Explorer and Mountaineer
  1. Insert the fuel pump assembly into the fuel tank, then secure it in place with the locking ring. Tighten the ring until secure.
  2. Install the tank in the vehicle.
  3. Install a minimum of 10 gallons of fuel and check for leaks.
  4. Install a pressure gauge on the throttle body valve and turn the ignition ON for 3 seconds. Turn the key OFF , then repeat the key cycle five to ten times until the pressure gauge shows at least 30 psi. Reinspect for leaks at the fittings.
  5. Remove the pressure gauge. Start the engine and check for fuel leaks.

Hope help with this; remember comment and rated this help. TY for using Fixya.

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HIGH PITCHED WHINE IN THE BACK and under MY 1991 FORD EXPLORER


Could be the electric fuel pump if so equipped. What area(s) of the car the the fuse control, that should give you a hint. Some cars have a fuel pump system that the pump kicks on and off to keep proper fuel pressure up in the fuel lines. If not working right will run battery down in a few days.

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1 Answer

Ran out of gas in 98 explorer and now wont start with gas was running fine


Check the following: Turn the key to the on position (so the dash lights go on, but the engine does not crank) and listen for a 'whirring, or humming' noise coming from the gas tank. This would indicate the fuel pump is working. You should hear this for about 5 seconds. No sound, you may have a bad fuel pump. The gas in the tank keeps the pump cool, if it overeats it can fail. Change the fuel filter. It is possible you just drew in sediment from the bottom of the tank, and it is plugged up. If this doesn't fix it, let me know so I can help further.

Mar 29, 2010 | 1998 Ford Explorer

1 Answer

1998 ford explorer will not start


CHECK FUEL PRESSURE JUST B/C U HEAR THE FUEL PUMP COME ON DOESN'T MEAN IT IS SENDING ENOUGH FUEL PRESSURE TO THE FILTER. ALSO CHECK FILTER COULD BE CLOGGED.

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