4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

fuel pump is broken

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Old 07-26-2010, 01:21 PM
  #1  
mcgilvrey007
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Default fuel pump is broken

the fuel pump isnt getting any power, ive tested it and it works just fine with a manual power source, but idk whats wrong with it
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Old 07-26-2010, 02:03 PM
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devongarver
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Did you check the cut off switch in the trunk on the left side?
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Old 07-26-2010, 02:10 PM
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Repzard
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Also check the module\ relay under front pass fender for power.
It controls your fuel pump , cooling fan and AC.

Also there is a module in your trunk on driver side mounted to wall that could have failed.


Good Luck
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Old 07-26-2010, 05:44 PM
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mcgilvrey007
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true, the drivetrain and all of the wiring was pulled from a car wrecked in the rear. it was left sitting for about 5-6 years open to all of the elements, so the rear module in the back could be the problem, i'll try to troubleshoot once the rain stops here lol
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Old 07-27-2010, 07:03 AM
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devongarver
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Originally Posted by mcgilvrey007
true, the drivetrain and all of the wiring was pulled from a car wrecked in the rear. it was left sitting for about 5-6 years open to all of the elements, so the rear module in the back could be the problem, i'll try to troubleshoot once the rain stops here lol


LOL^^^ Good Luck...crimany that's going to be a nightmare.
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Old 07-27-2010, 09:41 AM
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02 Ninja
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Damn dude, i just threw away a perfectly good used fuel pump. When my crankshaft sensor went bad, i thought it was fuel pump and replaced my fuel pump with a new one. Cleaned out the garage the other day and junked it. I would have given it to you. I guess i shouldn't tell you this now huh??
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Old 07-27-2010, 10:17 AM
  #7  
mcgilvrey007
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You bastard, jk lol. The pump is mechanically fine, but it's the chassis electronics that are to blame
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