Does anyone know how to change a fuel pump on a 85 Buick Century pictures would be great like a manual???

I am trying to change the fuel pump on my mom's car but she does not have a manual for the car so any help would be appreciated
Does anyone know how to change a fuel pump on a 85 Buick Century pictures would be great like a manual???
The fuel pump is located in the fuel tank. You will have to remove the tank from the car to change the pump. There are two bolts that hold the tank straps to the frame, these will have to be removed, BUT they are usually rusted quite bad. I would suggest soaking them with a good penetraiting oil for a couple of days before you even attempt to remove them.



You will need to put a floor jack of some kind under the tank to support it so you can lower it down. You will also need to remove the fill neck, and disconnect the hoses and wires to the sending unit before you lower the tank all the way.



Once the tank is on the ground you will have to remove the sending unit, there is a ring that has to turn to unlock it from the tank, you will need a special tool to turn this ring, or a brass (NON SPARKING) punch to tap it around counter clockwise to remove it.



Once the ring is off, you can remove the sending unit fom the tank, unclip the pump from the sender, replace the hose that it hooks into (usually supplied with your new pump), and replace the suction strainer/sock at the bottom (not always supplied)



Then reverse the steps to install. and check for leaks, there is a large O-Ring between the sender and the tank, make sure you install this correctly, and it doesn't shift out of place while re-installing the sending unit.



Good luck...many of the fittings holding the tubes to the sender can be quite rusty and a real pain to remove...if you tweek any of the lines you will be replacing lines OR the sending unit. (some can be expensive).
Does anyone know how to change a fuel pump on a 85 Buick Century pictures would be great like a manual???
go to the auto parts store and buy a Haynes repair manual. They are only about $15. If the pump is in the gas tank you will ave to remove that to get to it.
you have to drop the gas tank . Take pictures as you go so you remember how to put it back together.