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1991 Ford Mustang Fuel Pump Relay Diagram

Where is the fuel pump relay located on a 91?

Old 06-15-2008, 12:09 AM

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Default Where is the fuel pump relay located on a 91?


Anyone>!?

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Old 06-15-2008, 12:14 AM

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Default RE: Where is the fuel pump relay located on a 91?


On this image its sayingthe pump relay is32. And 33 is something for the ac. But i only have 1 relay on that harness. it has 4 wires but not the same color as it describes.

Any ideas?

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Old 06-15-2008, 01:16 AM

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Default RE: Where is the fuel pump relay located on a 91?


under the drivers seat

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Old 06-15-2008, 01:19 AM

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Default RE: Where is the fuel pump relay located on a 91?


Oh For real? Thanks man. Why the hell is it inside, under the seat? lol

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Old 06-15-2008, 01:24 AM

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Default RE: Where is the fuel pump relay located on a 91?


yep............ on my 91 it is under the drivers seat

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Old 06-15-2008, 01:25 AM

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Default RE: Where is the fuel pump relay located on a 91?


easy access, protected from the elements

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Old 06-15-2008, 02:05 AM

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Default RE: Where is the fuel pump relay located on a 91?


just the way they made it, mine was there on my 88, and 2 86's i've worked on. havent needed to see if thats where it is on my sn

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Old 06-15-2008, 02:14 AM

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Default RE: Where is the fuel pump relay located on a 91?


ok thanx guys. Very helpfull.

So the relay thats on the passenger side is the wide open throttle a/c cut off relay. That must be the wrong diagram for my year. Mine has 4 wires and that shows 3. Mine a/c cut off relay is quite melted. Should I even worry about it since I dont have a/c?. or should I replace it? I got one out of a 88 or 89 and it seems smaller and different color wires. What should I do?

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Old 06-15-2008, 02:42 AM

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Default RE: Where is the fuel pump relay located on a 91?


well that relay still has power to it.....im pretty sure it does. BTW on my 92 it was under the MAF right next to my AC relay. and the part no is different too.

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Old 06-15-2008, 03:39 AM

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Default RE: Where is the fuel pump relay located on a 91?


ORIGINAL: redpony88

just the way they made it, mine was there on my 88, and 2 86's i've worked on. havent needed to see if thats where it is on my sn

not there in the SN... its part of the CCRM next to the coolant overflow bottle

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Source: https://mustangforums.com/forum/5-0l-1979-1995-mustang/453842-where-is-the-fuel-pump-relay-located-on-a-91-a.html

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