5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Fuel pump keeps running???

Old 03-20-2007, 10:35 PM
  #11  
AdderMk2
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Default RE: Fuel pump keeps running???

ORIGINAL: decipha

can't flood it if its fuel injected
you CAN flood an EFI car... it takes skill to do it.

the pump running continuously will NOT affect the starting or driveability of the car.. you have a different problem

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Old 03-21-2007, 08:39 AM
  #12  
nickr182002
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Default RE: Fuel pump keeps running???

any idea on what it is? I try to start it and it just makes this weird sound a few times. The only way i can describe it is like the vehicle is flooded.
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Old 03-21-2007, 09:51 AM
  #13  
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Default RE: Fuel pump keeps running???

if you think its flooding... try starting it in flood clear mode
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Old 03-21-2007, 10:16 AM
  #14  
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Default RE: Fuel pump keeps running???

Ok tried it( fully depressing the pedal while trying to start right?) Same thing happened. No start. I am going to check for spark and check my coil cause im running out of ideas. Ill keep everyone up to date. Thanks for all of the help so far.
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Old 03-21-2007, 10:57 AM
  #15  
ZachW04Stang
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Default RE: Fuel pump keeps running???

If your pump keeps running its either shorted or you don't have pressure. If you don't have pressure more then likely the rubber hose that come out of the pump to the fuel line ripped. I see it happen all the time on many different cars and trucks. Your going to have to get a fuel pressure tester and check at the shreder valve for pressure and check right before the fuel filter.
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Old 03-21-2007, 01:17 PM
  #16  
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Default RE: Fuel pump keeps running???

when i turn the key on and let the pump run, I depressed the schrader valve and fuel shot out soi am pretty sure i have fuel pressure. I think im just going to go back to basics and check everything in the ignition systemm starting with spark.
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Old 03-21-2007, 01:22 PM
  #17  
88BlueGT
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Default RE: Fuel pump keeps running???

My fuel pump used to do the same thing on my 88 GT. Never had any problems w/ it though.
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Old 03-21-2007, 02:03 PM
  #18  
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Default RE: Fuel pump keeps running???

Whatever it is its making my car not run at all. Who knows at this point.
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