Technical Car Experts Answers everything you need: How to replace fuel pump on lexus LS 400?

Thursday, June 2, 2011

How to replace fuel pump on lexus LS 400?

To Order car parts online:--To get heavy discount on car parts .Click this link below:----

http://technoanswers.blogspot.com/2011/05/from-where-to-order-car-parts-online.html

The fuel pump is inside gas tank behind the back seat unscrew the only top that's there and it is inside the gas tank.

You will have to remove your back seat to gain access to fuel pump. Fuel tank is located in trunk. No need to take fuel tank down.

The whole process takes about 45 minutes with few basic tools. Here are the some pictures with descriptions on the process. Before you start, make sure to disconnect the battery and do not smoke while you are working with fuel. Here is the oem instruction on rear seat removal:---

The first thing is to remove the back seat. There are two spring locks at the lower front of the seat on both sides. Just your hands or a flat screw driver to get if open--------------

After the rear seat is removed, there are 4-12 mm crews located near the seatbelt anchor.-------------

The rear driver side screw is being loosen with basic tools.------------

You to use a 14 mm socket to loosen the seat belt anchor in the middle in order to get to the two screws in the middle.-------------

This is how it look like after the back support is removed. Remember to push the back support into the trunk and lift it up. There are hooks like behind the back support.

--------------

After u flip over the black cover, you will see a round aluminum plate cover. Just use your hand to lift it up.

-------------

After the cover is removed, there is the tank cover. Use 8mm socket to remove the tank cover.

--------------------

This is a closer view of the tank cover. Remember to disconnect the battery before doing this mod.

---------------

Here are the two screws in the middle for anchoring the back support.

--------------

If in case you need to upgrade your fuel pump you can follow this procedure.

This is how the new fuel pump looks like. Everything is just plug and play. Very simple you almost don't need instruction.------------------

The is the view of the Walbro fuel pump with wires and attachments. Everything you need in a kit.----------

Complete fuel pump with filter.-----------

Here are the 3 screws removed in order to take out the fuel pump. You also need to loosen the fuel line above too.----------

This is the 3 screws loosen in order to take the fuel pump components.-------------

This is the stock fuel pump removed.------------

A closer look at the OEM fuel pump. Use a 7mm and 8 mm to remove the wires or you can cut them.---------

This is the new and improve fuel pump with all the wires ready to be attached. Remember the OEM has 3 wires and Walbro has two. Two positive wires (dark green) connect to the red Walbro wire---------------