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 wont prime

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Old 03-05-2010, 11:30 PM
  #11  
dreamer1uk
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So what job description are you been interviewed for at Ford?

And you can also jumper the FP relay too with a fused jumper wire
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Old 03-06-2010, 11:18 AM
  #12  
AYEOH5.0
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I was interviewing for a quick lane position. How can I drain the tank?
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Old 03-06-2010, 12:35 PM
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dreamer1uk
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Siphon the gas tank and buy some gas containers......very simple.
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Old 03-11-2010, 06:25 AM
  #14  
AYEOH5.0
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okay well after realizing i dont have a test light......where can i test for voltage? i need to stop procrastinating this job haha
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Old 03-11-2010, 06:58 PM
  #15  
projectresto83
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Originally Posted by ikeybmg
FP will go out instantly like that sometimes. Mine in my truck just did awhile back. Check the relays and inertia switch like has done ben said. Could be the crank sensor also. Don't forget to check it.
We don't have crank sensors...........



OP, unplug the pump harness and just test the 2 wires. Each lead on each wire....
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Old 03-12-2010, 01:16 AM
  #16  
19stang88
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off topic question. whats OP
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Old 03-12-2010, 06:59 AM
  #17  
AdderMk2
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Originally Posted by 19stang88
off topic question. whats OP
Original Poster
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Old 03-12-2010, 12:47 PM
  #18  
AYEOH5.0
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i unplugged the harness from the pump and checked the voltages with the key on, got 12.7ish volts plugged it back in. i re cycled the key and volla the pump primes, loose connection i guess. i love this car lol.
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Old 03-12-2010, 01:06 PM
  #19  
projectresto83
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Lol That works!
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