Question about 2000 Lexus RX 300

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Fuel Fill Problem-Lexus RX300

I own a 1999 Lexus RX300 which I bought new. Recently, when filling the tank with fuel, the nozzle shuts off unless I go very, very slow. It takes over ten minutes to complete a fill. Nothing has ever gotten into the tank that I am aware of, however, I can see a small pipe sticking into the side of the filler neck (which may be a vent return line) about four inches down into the neck which appears to have the end deformed from the end of the filler nozzle bumping it. This small line protruding into the neck is about 1/4" to 3/8" O.D.

Is this fuel-fill problem common to the Lexus RX300? Is this small line part of the vent system? Could the deformation of this line be causing the problem? Can the filler spout be removed for inspection without removing the tank? How does one gain access to the problem area?

My Lexus dealer estimated it may take $2000.0 to fix this problem and did'nt even suggest the possibility of a restriction causing this problem!

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  • Anonymous Feb 28, 2009

    I own the 1999 Lexus RX300. I have the same problem. The only way I can fill the gas is to pump the gas in very slow, otherwise the nozzle shut off if I tried to pump at full speed. Any assistance to solve the problem would be greatly appreciated.

  • Pwilcher27 Apr 23, 2009

    I need help - we have replaced all fuel valves- still cannot get fuel into tank- blown tank out... Help....



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Yes....this does sound like a kinked or restricted vent pipe.

Has it been like this, since you bought the car ?

Did you mention this whilst still under warranty ?

Have you ever had any accident damage or repairs in this vicinity of the vehicle ?

I suggest you go back to your main dealer and try to get this rectified under warranty, as this is a potentially hazardous, and dangerous fire problem.

Due to the temptation not to fit the pump nozzle fully in to the tank spout, to speed up the filling procedure.
And possibly then a blow-back of fuel, over yourself, and then the fire risk.

Lexus normally have a very high standard to maintain, especially where safety is concerned.

Get an appointment with the service manager, and do not be fobbed off.

$2OOO. sounds a ridiculous cost to rectify this problem.

Let me know your thoughts?

A FixYa rating would be appreciated.... Thank you !

Good Luck !


Posted on Feb 10, 2009

  • John Quinn
    John Quinn Feb 18, 2009


    What was the outcome ?




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Posted on Jan 02, 2017


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