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.

ok so can u slove this?

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Old 09-22-2009, 05:17 PM
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jwest1292
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Default ok so can u slove this?

i started my car and now i hear a high pitch noise in the rear of the car its coming from under neith wat could it be?
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Old 09-22-2009, 05:21 PM
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PRO50SC
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Probably the fuel pump. Turn the key to the run position, the pump should run for 2 seconds and then stop.
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Old 09-22-2009, 06:57 PM
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jwest1292
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well i hear it then wile the car idles the sound is still there wat could it be?
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Old 09-22-2009, 06:58 PM
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mattdel
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the pump...
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Old 09-22-2009, 07:45 PM
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jwest1292
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i hear it then it stops car starts then the nose comes
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Old 09-22-2009, 08:09 PM
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1988TTOP
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fuel pump when u turn the key on the pump turns on when u go to start the car the pump turns off and turns runs when the car is on
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Old 09-22-2009, 09:24 PM
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jwest1292
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yea i no what a feul pump sounds like and it runs with the car but its making a hummng noise ive never herd before
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Old 09-22-2009, 09:44 PM
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1988TTOP
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if it is louder than norm it is probably about to go out
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Old 09-22-2009, 10:15 PM
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USMC1775
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Check fuel filter, could be debris causing the pump to work harder
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