How do u install a fuel pump for a 2002 ford mustang

while they are badged ford, the expolrer can be a mazda manufacture or nissan manufacture where as the mustang will be ford manufacture
go to foed spares and see if the part numbers are the same for the pumps

To troubleshoot the issue, i suggest you few help links with accurate solution step by step:---
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Fuel pump not running?
http://schematicsdiagram.blogspot.in/2012/02/fuel-pump-not-running.html
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Fuel pump not working on 1991 Ford Ranger?

http://technoanswers.blogspot.in/2012/01/fuel-pump-not-working-on-1991-ford.html

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Fuel pump has no power on 2002 ford 350 7.3 diesel?

http://technoanswers.blogspot.in/2012/01/fuel-pump-has-no-power-on-2002-ford-350.html

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Emergency fuel shut switch on Ford car?

http://schematicsdiagram.blogspot.com/2011/12/emergency-fuel-shut-switch-on-ford-car.html

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How to jump fuel pump On Chevrolet Silverado 1500?

http://schematicsdiagram.blogspot.com/2011/12/how-to-jump-fuel-pump-on-chevrolet.html

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How to Increase gas mileage on 2011 2500HD Duramax 6.6?

http://schematicsdiagram.blogspot.com/2011/12/how-to-increase-gas-mileage-on-2011.html
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How to test Fuel Pressure and replace Fuel Pump?

http://repairhelpcenter.blogspot.com/2011/11/how-to-test-fuel-pressure-and-replace.html
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Fuel Running Lean

http://technoanswers.blogspot.com/2012/10/fuel-running-lean.html
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How to relieve fuel pressure?

http://technoanswers.blogspot.com/2012/01/how-to-relieve-fuel-pressure.html

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Refueling problem?

http://repairhelpcenter.blogspot.com/2012/01/refueling-problem.html

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Toyota Tercel consuming more fuel?

http://repairhelpcenter.blogspot.com/2012/01/toyota-tercel-consuming-more-fuel.html

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How to maximize fuel economy on your vehicle?

http://schematicsdiagram.blogspot.com/2011/11/how-to-maximize-fuel-economy-on-your.html

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Fuel gauge jumps from empty to full?

http://schematicsdiagram.blogspot.com/2011/12/fuel-gauge-jumps-from-empty-to-full.html

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Gas gauge stuck on empty on 2002 Mercedes Benz 240c?

http://repairhelpcenter.blogspot.in/2012/02/gas-gauge-stuck-on-empty-on-2002.html

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No power to the control side of the fuel pump relay?

http://schematicsdiagram.blogspot.com/2011/12/no-power-to-control-side-of-fuel-pump.html

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These will help.

Thanks.

Hello my name is brad,the the fuel pump relay,is located in the engine compartment it is a larage black box lift up on top relay is in box it should be marked.have a great day.

try the emrgency cut off switch located in the trunk behind the driverside tailight.

when you loosen the filter, not much fuel is going to come out, just put a rag over it, a few oz. maybe. You could always pull the fuel pump relay and let the eng run until it stalls out.

Sounds as if it's not getting fuel. Change your fuel filter, then if nothing, it could be the fuel pump.

The electric fuel pump is inside the fuel tank
check it and rate it

have the fuel preasure tested may have a weak fuel pump.

contorls fan, fuel pump, ac , all relays are inside this box, it is located in the fender well

Yes, the fuel pump is inside the tank. Use a jack and a piece of wood when you lower the tank down, it'll save you from awkward lifting.