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August 17th, 2006, 11:18 AM
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#1 |
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Enthusiast
Join Date: Apr 2006
Posts: 638
 iTrader: 0 reviews
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are 4 pin vs 5 pin relays the same
Ford uses a 4 pin relay for my 89-90 fuel pump and ecc. Autozone provides a generic relay with 5 prongs.
Has anyone replaced a 4 prong with a 5 prong. I realize the 5th prong in the harness is not connected, but am concerned if the relay will actually work or if I need a Ford part.
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"Those who forget the past are condemned to repeat it" Rev. Jim Jones |
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August 17th, 2006, 04:28 PM
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#2 |
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Enthusiast
Join Date: May 2006
Location: El Paso, Tx
Posts: 861
iTrader: 0 reviews
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should be no problem....as long as pin apportioning is the same
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"The gods too are fond of a joke." "If I had only known, I would have been a locksmith. " |
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August 17th, 2006, 04:37 PM
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#3 |
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MM Ninjas!
 
1990 Mustang LX
9.36@143 mph
Join Date: Jan 2006
Location: North Fond du Lac, Wisconsin
Posts: 11,375
 iTrader: 1 reviews
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The 5th pin is most likely an extra power out and probably labeled 87a. It will work fine.
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My daily driver has 16 cylinders and 4400hp @ 1000 rpm....  ***1988 Mustang GT - Stock....almost 
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August 21st, 2006, 01:24 AM
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#4 |
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Newbie
Join Date: Jul 2006
Posts: 3
iTrader: 0 reviews
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A 4 pin is a normally open relay an a 5 pin relay is normally open an a normally closed.
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