Question about 1990 Lexus LS 400

2 Answers

How to change the fuel pump on a 1990 lexus ls400

Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.

    New Friend:

    An expert that has 1 follower.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

Trader Score: (0)


Join Date: Dec 2011

Location: Birmingham, AL

Posts: 4,078


on a 95-97 it's easy, no need to drop tank, just have to remove trunk floor mat, trunk trim cover, seat cushion and back and then 8 bolts on the set plate on top of tank, 3 nuts on fuel pump bracket, disconnect hose and pull it out!

Read more:

Posted on Jul 04, 2015

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Lexus Master
  • 1,243 Answers

Remove the rear seat to access the fuel pump cover.

Posted on Jul 04, 2015


1 Suggested Answer

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

"I have a '98 LS400, 2mo ago I had the water pump, timing belt and radiator changed. I drove to work yesterday and came out to leave and the car turns over real strong but will not start. checked the hose...

You have to have adequate fuel pressure to start your motor and for your motor to keep started and run efficiently I would check your fuel pump I had a 2000 Lexus LS400 I had to replace the fuel pump

Jan 22, 2018 | Lexus Cars & Trucks

1 Answer

No power to fuel pump relay my car is 1990 ls400 any ideas all fuses are good and fusible links

Read the last post:

Jan 03, 2012 | 1990 Lexus LS 400

1 Answer

The serpentine belt on my 1990 Lexus LS400 snapped. Does this belt have anything to do with the water pump?

Yes it runs the water pump,the car will over heat almost as soon as the belt breaks wile driveing down the road.Thanks for using Fixya.....Ray

Jun 22, 2010 | 1990 Lexus LS 400

2 Answers

I have a 1990 LS400 lexus and is havin problems with the fuel sys

if replaced fuel pump because of not enough fuel pressure they should have checked the fuel regulator, could have bad fuel regulator

Feb 07, 2010 | 1990 Lexus LS 400

1 Answer

What size gas tank does 1990 lexus ls 400 have?

Fuel tank: 22.5 Gls.

More details in Lexus LS400

I hope helps with this (remember rated this help) Good luck.

Jan 04, 2010 | 1990 Lexus LS 400

1 Answer

How do i locate the factory amp in a 1990 lexus ls400

in 1990 LS400, the amp is only for the sub, its located between the fuel tank and trunk liner. you can reach it by removing the trunk liner which cover the fuel tank right behind the rear seat. hope this helps

Mar 30, 2009 | 1990 Lexus LS 400

3 Answers

Will not start

Hi again,

Any developments with your Lexus?

Jun 18, 2008 | 1990 Lexus LS 400

Not finding what you are looking for?
1990 Lexus LS 400 Logo

238 people viewed this question

Ask a Question

Usually answered in minutes!

Top Lexus Experts


Level 3 Expert

85020 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Are you a Lexus Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides