How to Replace a Fuel pump on a 2000 Mazda 626

Sixteen year old car with only 40K miles must not be driven often, or sat for some time. I would suspect fuel system issue, such as bad pump, clogged filter, bad regulator or faulty injectors. Start by testing fuel pressure.

You Mazda does not have an inertia switch like the fords do. The only things that control the fuel pump are the pcm, fuel pump relay, and the fuel pump fuse.

You don't bleed the fuel. You have a fuel pressure regulator on the fuel rail that does this for you. Turn the key on 3 or 4 times. this builds up pressure. Try to start the car. If it does start, check fuel pressure. Check to hear if the pump is coming on.

By you saying the engine "Dies" I am going to assume it restarts.
If the timing belt failed the engine would not start again until the belt was replaced.
So it could be a fuel or electrical problem.

Check fuel pressure
The fuel pump may be worn out &
binding up every few days & stopping
the fuel to the engine.
Then you have other items that a repair shop
can check, that may be causing your problems.

the fuel/gasoline pump is located inside the fuel tank, the fuel tank must be removed to replace the fuel pump.

Check the fuse for the fuel pump. if its bad replace it if it blows again change the fuel pump its on its way out

fuel filter is between the tank and engine, usually under the hood. replace the fuel pump.

1. Relieve the fuel pressure and disconnect the negative battery cable.

2. If not already removed, depress the clips on each end of the rear seat cushion and remove the cushion.

3. If not already done, detach the electrical connector from the fuel pump/sending unit.

4. Remove the attaching screws from the fuel pump/sending unit access cover and remove the cover.

5. Disconnect the fuel supply and return hoses from the fuel pump/sending unit.

6. Remove the attaching screws and the fuel pump/sending unit from the fuel tank.

7. Detach the sending unit electrical connector, remove the sending unit attaching nuts and remove the sending unit from the fuel pump assembly.



To install:

1. Attach the sending unit to the fuel pump assembly and install the nuts. attach the sending unit electrical connector.

2. Install the fuel pump/sending unit into the fuel tank with a new gasket and install the mounting screws.

3. Connect the fuel supply and return lines.

4. Install the access cover and the mounting screws.

5. Attach the sending unit electrical connector.

6. Position the rear seat cushion over the floor, making sure to align the retaining pins with the clips. Push down firmly until the two retaining pins are locked into the rear seat retaining clips.

7. Connect the negative battery cable, start the engine and check for proper system operation and for fuel leaks.

Hi Janieanip01,
Again we need more imfo....Is the vehicle injection?....If it is you'll have to wait until the fuel rail is re-pressurised before it will start....Crank it for about ten seconds at a time so as not to burn out the starter motor....It may be that the vehicle didn't run out of fuel but instead the pump may have given in....and when did you last replace the fuel fiter?
Regards Johngee10