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  '79 to '93 -- The Fox Mustang
  FUEL PUMP STAYS ON

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Author Topic:   FUEL PUMP STAYS ON
GA88LXSSP
Journeyman

Posts: 2
From: Columbus, Ga., USA
Registered: Jun 2005

posted 06-09-2005 02:53 AM     Click Here to See the Profile for GA88LXSSP     Edit/Delete Message   Reply w/Quote
The fuel pump on my '88 LX(5.0) continues to run after I turn the key OFF. It happens most of the time but not all of the time. I have to disconnect the battery which is really getting old. I had to replace the fuel pump a month ago but didn't notice anything until about a week ago so I don't think I crossed the wires but I guess it is a possibility. Is there a relay somewhere which can go bad or is it possibly from the ignition switch?

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ddenton749
unregistered
posted 06-09-2005 08:27 AM           Edit/Delete Message   Reply w/Quote
Yes, there is a fuel pump relay and also an EEC relay. They sort of work in series since the EEC activates the fuel pump relay. I believe they are located under the dash. I have to be honest, since I've never had to mess with them in my '91, I'm not sure where they are on the car. In my Explorer they are under the hood in the Power Box.

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'73 Convertible, 351C 2V
'91 LX Convertible 5.0
Member: Valley Forge Mustang Club
"Tank, I need an exit."
"I may not have gone where I intended to go, but I think I have ended up where I needed to be."
AIM, YM: topdnmustang

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ddenton749
unregistered
posted 06-10-2005 08:54 AM           Edit/Delete Message   Reply w/Quote
I found this:

http://www.misterfixit.com/mustfuel.htm

Sort of an amusing story, but the relay is under your driver's seat.

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'73 Convertible, 351C 2V
'91 LX Convertible 5.0
Member: Valley Forge Mustang Club
"Tank, I need an exit."
"I may not have gone where I intended to go, but I think I have ended up where I needed to be."
AIM, YM: topdnmustang

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GA88LXSSP
Journeyman

Posts: 2
From: Columbus, Ga., USA
Registered: Jun 2005

posted 08-03-2005 02:44 AM     Click Here to See the Profile for GA88LXSSP     Edit/Delete Message   Reply w/Quote
THIS IS AN UPDATE TO WHOEVER READS THIS POST AND HAS THE SAME PROBLEM, IT WAS THE FUEL PUMP RELAY AND IT IS UNDER THE DRIVER'S SEAT, THANKS TO DDENTON749 FOR THE HELP....FRANK-O

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ddenton749
unregistered
posted 08-03-2005 08:50 AM           Edit/Delete Message   Reply w/Quote
Glad we could help, Frank-O

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'73 Convertible, 351C 2V
'91 LX Convertible 5.0
Member: Valley Forge Mustang Club
"I may not have gone where I intended to go, but I think I have ended up where I needed to be."
My Site

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