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Where is fuel sending unit on 1994 Mazda b4000 truck?

The fuel sending unit on a 1994 Mazda B4000 truck is located on the top of the fuel tank. To access the fuel sending unit, you will need to remove the fuel tank from the truck.

Here are the steps to remove the fuel tank from a 1994 Mazda B4000 truck:

1. Park the truck on a level surface and turn off the engine.

2. Disconnect the negative battery cable.

3.Raise the rear of the truck using a jack and jack stands.

4. Crawl under the truck and locate the fuel tank. It is located between the rear axle and the cab of the truck.

5. Disconnect the fuel lines from the fuel tank.

6. Disconnect the electrical connector from the fuel sending unit.

7. Remove the bolts that hold the fuel tank in place.

8. Carefully lower the fuel tank from the truck.

Once the fuel tank is removed, you will be able to access the fuel sending unit. The fuel sending unit is held in place by a locking ring. Remove the locking ring and lift the fuel sending unit out of the fuel tank.

Here are the steps to replace the fuel sending unit on a 1994 Mazda B4000 truck:

1. Inspect the fuel sending unit for damage. If the fuel sending unit is damaged, replace it with a new one.

2. Insert the new fuel sending unit into the fuel tank.

3. Replace the locking ring and tighten it until it is snug.

4. Connect the electrical connector to the fuel sending unit.

5. Connect the fuel lines to the fuel tank.

6. Reinstall the fuel tank into the truck.

7. Lower the truck off of the jack stands and reconnect the negative battery cable.

Once the fuel tank is reinstalled, you can start the truck and verify that the fuel gauge is working properly.