Question about 1991 Lexus LS 400

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1991 Lexus LS 400 fuel gauge reads empty, even when tank is full.

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Your float inside your gas tank is stuck. Or broken.

Posted on May 18, 2011

  • John Lary May 18, 2011

    How do you check a stuck float and how do you repair it?

  • James Booth
    James Booth May 18, 2011

    You have to drop your gas tank, pull out the fuel pump, and there will be a lever looking piece on the fuel pump. Thats the float. It is supposed to float on top of the gas that way your gas gauge will have a clear reading. BUT if its stuck to the bottom of the tank, then your gauge won't work. Also, there is an electrical wire that sends it's reading to the gas gauge. Make sure its hooked up to the fuel pump as well. Hope this helps, AND PLEASE RATE THIS. James Booth



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Fuel Pump

On your 91 Lexus ls 400.
If you remove the Rear passanger seat.
You will have axces to the fuel pump.
Remove the metal cover . Disconnect the wire harnes,
Disconnect the lines.
removing the nuts you will able to remove the fuel pump.

Ok.. I hope this help on your question.
Thank you for use fixya...

Aug 19, 2008 | 1991 Lexus LS 400

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