SW03ES Posted July 18, 2006 Share Posted July 18, 2006 Hey guys, I'm having a weird leak in my right front. Yesterday it was down 13lbs from the others which were perfect. No sign of nail or puncture. I filled it back up. Today its totally fine, hasn't lost any pressure at all. I know it lost those 13lbs quickly because I check them weekly. Yesterday I was even going to put the spare on figuring it'd be flat in the morning. Any idea what would cause such a dramatic loss in pressure that wouldn't persist? Quote Link to comment Share on other sites More sharing options...
RX in NC Posted July 19, 2006 Share Posted July 19, 2006 It's probably the valve needle inside the valve stem that is in the process of failing. Every now and then you'll get a defective one that takes a while to fail. But the most common cause of failure is the owner (or a tire store guy in a hurry) being careless with the air pressure hose while inflating his tires and bending the valve needle ever so slightly because he doesn't place the hose end squarely and carefully on the valve stem. Doesn't take much of a bend to cause the valve stem to fail. I did it once myself many years ago and learned my lesson to take my time and be careful with the hose. Take your cap off, spit on the valve stem needle (get it good and wet), and look for air bubbles forming. If you see them, you've found your problem. The good news is that valve stems are cheap and you have no tire damage as you would with a nail or screw. Let us know how it turns out.... Quote Link to comment Share on other sites More sharing options...
SW03ES Posted July 19, 2006 Author Share Posted July 19, 2006 That could be it, I'll check it out and report back. Thanks RX! Quote Link to comment Share on other sites More sharing options...
Lexusfreak Posted July 20, 2006 Share Posted July 20, 2006 That's a good idea RX! SW, where is the car parked normally? IE: garage? I'm just wondering if someone with nothing better to do decided to fool with the tire kinda deal. Quote Link to comment Share on other sites More sharing options...
SW03ES Posted July 20, 2006 Author Share Posted July 20, 2006 Garage. It could have happened while I was at work or something (also a controlled access garage) but I doubt it. Still no more loss.. Oh, the file uploads are working again I think. Quote Link to comment Share on other sites More sharing options...
Lexusfreak Posted July 21, 2006 Share Posted July 21, 2006 Oh, the file uploads are working again I think. Thanks, I'll see if I can post pics this weekend. B) Quote Link to comment Share on other sites More sharing options...
SW03ES Posted August 13, 2006 Author Share Posted August 13, 2006 Get this, the tire has completely stopped loosing air. I had Lexus look at it last time it was in, they can find no evidence of a leak anywhere, not even in the valve stem. Weird huh? Quote Link to comment Share on other sites More sharing options...
steviej Posted August 14, 2006 Share Posted August 14, 2006 Get this, the tire has completely stopped loosing air. I had Lexus look at it last time it was in, they can find no evidence of a leak anywhere, not even in the valve stem. Weird huh? smells like neighborhood pranksters or parking lot kids. steviej Quote Link to comment Share on other sites More sharing options...
SW03ES Posted August 17, 2006 Author Share Posted August 17, 2006 Its very rarely ever parked outside, its in a secured garage at work and my locked garage at home. It did loose air a couple times, then just stopped. Quote Link to comment Share on other sites More sharing options...
steviej Posted August 17, 2006 Share Posted August 17, 2006 Its very rarely ever parked outside, its in a secured garage at work and my locked garage at home. It did loose air a couple times, then just stopped. Maybe Carla is doing it to get a rise out of you. :P sj Quote Link to comment Share on other sites More sharing options...
RX in NC Posted August 17, 2006 Share Posted August 17, 2006 It could still be a faulty valve stem. I've seen them lose air for awhile, go back to normal for awhile, and then lose air again. Not much you can do except just keep checking the pressure on a regular basis, which you're probably already doing. Annoying, isn't it? Quote Link to comment Share on other sites More sharing options...
SW03ES Posted August 18, 2006 Author Share Posted August 18, 2006 Maybe Carla is doing it to get a rise out of you. :P sj She could be! LOL She's been bored since she's been out of work. Not much you can do except just keep checking the pressure on a regular basis, which you're probably already doing. Annoying, isn't it? Very! I check them every week when I wash the car. Quote Link to comment Share on other sites More sharing options...
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