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How to Replace a Fuel Pump on a 1989 Mazda B2200

If after checking fuses and relays you still aren't getting fuel to your engine, then it could be that you have a faulty fuel pump. Replacing the fuel pump in a 1989 Mazda B2200 truck isn't very hard to do, and even a person with little auto repair experience can get the job done in a couple of hours. All it takes is a few basic tools and an outdoor area in which to work to prevent gas fumes from building up.

Tools Used: Socket and ratchet set, Phillips screwdriver, New fuel pump

Replace a Fuel Pump

Start the engine and disconnect the fuel pump relay. Leave it off until the truck stalls to relieve the pressure from the fuel system.

Turn the key off and reconnect the fuel pump relay.

Remove the terminal from the negative post on the battery.

Remove the fuel tank using the proper size socket and the ratchet.

Clean the dirt off the fuel tank around the fuel pump sending unit.

Remove the screws using the screwdriver and take the sending unit/fuel pump out of the gas tank.

Disconnect the electrical wires and the fuel hose from the fuel pump.

Connect the wires and the fuel hose to the new fuel pump.

Place the new fuel pump in the gas tank.

Secure the pump to the tank with the screws using the screwdriver. Do not overtighten.

Replace the gas tank on the truck. Tighten the bolts by hand to hold the tank in place.

Tighten the bolts on the gas tank using the proper size socket and ratchet.

Reconnect the negative battery terminal.

Start the truck to test the installation.

Tips & Warnings

Always work on the fuel system in a well-ventilated area.

Don't smoke when working on the fuel system of any vehicle.

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