Low fuel tank pressure problem.
Low fuel tank pressure problem.
car = 1999 RX300 AWD 104k miles
Gas tank capacity = 17.2gallons
scenario: I usually fill up when I have 2gallons left. (40-50 miles after the gas light comes up)
problem: when I unscrew the gas cap, I can't hear the pressure escape, which leads me to believe that the fuel tank is underpressurised.
I have no check lights on.
HELP!
Gas tank capacity = 17.2gallons
scenario: I usually fill up when I have 2gallons left. (40-50 miles after the gas light comes up)
problem: when I unscrew the gas cap, I can't hear the pressure escape, which leads me to believe that the fuel tank is underpressurised.
I have no check lights on.
HELP!
Lexus Champion
Joined: May 2002
Posts: 2,781
Likes: 6
From: Georgia
Your evap system may has some leaks. Did anybody change the air filter recently?
On the RX, there is one evap hose that connected to the air filter housing and if someone lift up the air filter housing a little hard. It will pull that rubber hose out of the metal pipe.
On the RX, there is one evap hose that connected to the air filter housing and if someone lift up the air filter housing a little hard. It will pull that rubber hose out of the metal pipe.
Originally Posted by VVT-i
Your evap system may has some leaks. Did anybody change the air filter recently?
On the RX, there is one evap hose that connected to the air filter housing and if someone lift up the air filter housing a little hard. It will pull that rubber hose out of the metal pipe.
On the RX, there is one evap hose that connected to the air filter housing and if someone lift up the air filter housing a little hard. It will pull that rubber hose out of the metal pipe.
I'll check it out. The intake filter box was opened not long ago.
thanks
dennis
Lexus Test Driver
Joined: Aug 2003
Posts: 1,019
Likes: 5
From: New Hampshire
Dennis,
Did you ever find the problem? I noticed the same thing on my RX300 on the last fill up. I usually never let it get that low, but I did last time. I thought it was strange that I didn't hear any noise when I released the gas cap. Let me know.
Did you ever find the problem? I noticed the same thing on my RX300 on the last fill up. I usually never let it get that low, but I did last time. I thought it was strange that I didn't hear any noise when I released the gas cap. Let me know.
Instructor
Joined: Mar 2002
Posts: 1,026
Likes: 2
From: NV
Here's another recent thread on this, apparently some have the pressure and others not on RXs for some reason. I only notice it in summer, might be Reid pressure issue too?
https://www.clublexus.com/forums/sho...d.php?t=155510
https://www.clublexus.com/forums/sho...d.php?t=155510
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White98ARISTO
GS - 2nd Gen (1998-2005)
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Jan 14, 2006 11:00 AM
