Last post on Oct 20, 2012 at 7:25 AM
You are in the Lexus LS 460/460L
What is this discussion about?
Lexus LS 400, Lexus LS 430, Lexus LS 460
#56 of 113 LS430 2003 Losing Air
Mar 22, 2008 (10:41 am)
My Stock Wheels were Chromed Plated by Park Place Lexus Plano when I took new deliver of my brand new 2003 Lexus LS 430 and now after 5yrs they are losing the first 10 pounds of air presure very quickly after filling them full. This takes about week for them to lose the 10 pounds. Filling them up every week has become a pain. Lexus in Plano said I need to buy a new wheels.
Sewell Lexus in Dallas, said I could send out the wheel to be fixed for 175 dollars. I would think this kind of thing would have been would have been warranty item, but appreantly it is not. I heard this is a problem with all chrome wheels after certain period of time.
#57 of 113 cruise control sensor
Apr 03, 2008 (3:48 am)
I know that I'm posting this under the wrong topic, but for some reason this is the only one I was able to sign in on. Anyway, I'm trying to find where the discussion took place some time ago about a solution to the problem of protecting the sensor for the cruise control on the 2002 LS. Mine was just replaced due to a crack in the sensor. I know I remember reading about various things that others have done to try to protect that sensor, since it is in such a vulnerable location. Does anyone have any idea where I might find that discussion? Please help me if you can.
#58 of 113 Re: cruise control sensor [cneuman]
Apr 11, 2008 (5:09 am)
cneuman, I haven't checked this forum in a good while, and just caught your question. While I don't have a link to the previous discussion on protecting the laser sensor, I CAN tell you I've followed others' advice to protect the sensor with a piece of clear Lexan, doing it on my 2005 LS 430. I first measured the size of the metal frame bordering the sensor (height x width), then took this measurement to Home Depot and had them cut this exact size from a slightly larger piece of stock. Cost me approx. $8, if I remember correctly. I attached the Lexan to the sensor metal frame surround with pieces of stick-on Velcro, 3M brand. It's been on there for maybe 2 1/2 years, and hasn't budged. I have never noticed any detrimental effect on the operation of the Laser Cruise Control, which really surprises me, since I never clean behind the Lexan. I mounted it with Velcro with the idea of removing the Lexan periodically to clean off dirt that accumulates on its back side, but it's just too darn hard to reach the area in front of the sensor without removing any bumper trim. Took a lot of my patience to get the Lexan placed where I wanted it. And I used a lift, so I was working with the sensor at about eye-level. Will be harder if you have to lie on the ground and do it. But it can be done.
#59 of 113 Re: cruise control sensor [mac1lsr1]
Apr 14, 2008 (3:13 am)
Thanks mac1lsr1, for your reply. Sounds like one of the solutions I was referring to reading about, but could not remember the details.
#60 of 113 Re: LS430 2003 Losing Air [kevin_q]
Apr 14, 2008 (8:58 am)
I put brand new BBS 3-piece racing wheels on my 2001 911/996 C4 as soon as it arrived POE. I kept having problems with both of the rear tires having low air pressure for the first year or so. When I finally realized it was due to small,tiny, cracks in the wheels I contacted BBS.
BBS was aware of the problem and had already upgraded the wheels to a slightly thicker metal and thus sent me two new interior rim wheel pieces along with new bolts and o-rings.
So it does happen.
#63 of 113 Tires losing air pressure
Mar 26, 2009 (11:20 am)
My LS460L tires (all 5 of them) lost about 6 psi over 5 months, going from 36 psi to 29-31, thereby turning on the Warning light. When I took the car in for its 15,000 mi service I told the dealer (Park Place Mission Viejo) that I wanted this problem fixed, if necessary by replacing the wheels. They tried to tell me this was normal, that the manual instructs you to check air pressure regularly, that they would be happy to refill the tires anytime I wish to stop by, and -- finally -- that they are about to install a Nitrogen system to fill tires with Nitrogen instead of air, which is supposed to reduce leakage.
Have any of you with 460's had similar experience, and what was the resolution, if any?
#64 of 113 Re: Tires losing air pressure [rennybosch]
Mar 26, 2009 (12:21 pm)
Permeation loss of up to 1 PSI per month is considered normal. Also a gain or loss (gain for increasing temperature and loss for decreasing temperature) of up to 1 PSI per 10 degrees Fahrenheit is normal. So, I would say that your situation is within normal expectations. That is why your tires need to be checked and air added regularly. Nitrogen has some marginally better characteristics, both permeation and temperature coefficient, but if you are having to pay very much for it, it is not worth it.
All tires have always exhibited these characteristics and many premature failures and catastrophic failures are the result of prolonged operation while they are under-inflated due to inattention. That is the main impetus for the NHTSA mandated Tire Pressure Measurement Systems that were required by law beginning with all 2008 model cars and light trucks sold in the US. While you might find it annoying to be reminded so forcefully by your car that the tires are under inflated it is for your own safety. There is no substitute for adding more air or nitrogen to your tires periodically.
#65 of 113 Re: Tires losing air pressure [jmcraney]
Mar 28, 2009 (3:42 pm)
Thanks jmcraney for your very informative reply. I wish the Lexus guys had been able to put it like that. They just made it sound like double-talk.