Question about 2002 Toyota Sequoia

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03 SEQUOIA Filled the tank and the next day the guage went to empty and the light came on. What could make this happen.

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  • gharper1 Oct 21, 2008

    The guage is on empty and the light is on, but the tank is full.

  • gharper1 Oct 22, 2008

    Thanks, I have an 05 Tundra also, I think I'll buy a scanner. At least then I'll have a idea. You are very helpful.

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  • Toyota Master
  • 5,568 Answers

Either the sender has failed (a device within the gas tank) or wiring has been damaged. Normally there is a variable resistor that produces the reading and a switch that turns on the warning light but they may be deriving a value from the resistor to control the light which would only require a single wire be present instead of two.  

Another recent possibility is that a thief has drilled a hole in it and stolen the fuel; a trick that became common after gasoline exceeded the $3/gallon threshold. I doubt that in your case however, since I assume you can still start and drive.

Posted on Oct 21, 2008

  • Steve Allison
    Steve Allison Oct 21, 2008

    It sounds like a failed sender but it might make sense to have a workshop use a diagnostic scanner to check to see if the on-board computer has any stored error codes or, if you have more than one later vehicle, purchase your own.


    I bought my own as kind of insurance so if something is amiss, I can decide to cure it myself or have it done for me without going into a repair shop blind.


    The scanners range in price from ~$30 (on sale at Harbor Freight, simple but built for latest standards) to $300 US.
    They are easy to use and accompanied by a book (ours has a CD too) so you can look up the meaning of the code found.
    Your car definitely has a connector (normally under the dashboard on the left) to accept this device as the later connectors are standardized.
     

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