LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

Noticed funny behavior of stock UL's airbags.

Thread Tools
 
Search this Thread
 
Old 05-01-08, 10:05 AM
  #1  
BNR34
Lexus Fanatic
Thread Starter
iTrader: (1)
 
BNR34's Avatar
 
Join Date: Oct 2002
Location: So Cal
Posts: 6,858
Likes: 0
Received 25 Likes on 22 Posts
Default Noticed funny behavior of stock UL's airbags.

I noticed the car sit a lot higher in the day time and a lot lower at night or in the morning.

Then I realized it must be due to the temperature differences.

Air volume/pressure expend when hot and contract when cold.

Last weekend when it was 100 degrees out in the middle of the day, the car sit 1/2 inch higher then normal. These few days when it is cold at night, the car sit very low.

I bet you for some people who think their airbags are leaking when it sit in the garage overnight, they are not leaking, it just got cold overnight.

Air pressure in the tire does it too, they are a few psi differences between being hot out or cold out.
Old 05-01-08, 11:24 AM
  #2  
airtime
Moderator

 
airtime's Avatar
 
Join Date: Apr 2007
Location: Washington
Posts: 1,321
Likes: 0
Received 13 Likes on 7 Posts
Default

That's why for tires, you can get nitrogen fill. Much less fluctuation in hot or cold and the molecule size suppose leak out less over time. Wonder if we can get our UL airbags filled with nitrogen
Old 05-01-08, 04:44 PM
  #3  
BNR34
Lexus Fanatic
Thread Starter
iTrader: (1)
 
BNR34's Avatar
 
Join Date: Oct 2002
Location: So Cal
Posts: 6,858
Likes: 0
Received 25 Likes on 22 Posts
Default

Originally Posted by airtime
That's why for tires, you can get nitrogen fill. Much less fluctuation in hot or cold and the molecule size suppose leak out less over time.
Yes.

Originally Posted by airtime
Wonder if we can get our UL airbags filled with nitrogen
Technically that would be impossible since stock UL don't have air tank.

But I know you are not being serious anyway.
Old 05-01-08, 04:45 PM
  #4  
BNR34
Lexus Fanatic
Thread Starter
iTrader: (1)
 
BNR34's Avatar
 
Join Date: Oct 2002
Location: So Cal
Posts: 6,858
Likes: 0
Received 25 Likes on 22 Posts
Default

airtime, do you see that with your car? Car sit high when hot and low when cold?
Old 05-01-08, 04:56 PM
  #5  
blacksc400
Car Chat Moderator
iTrader: (4)
 
blacksc400's Avatar
 
Join Date: Jan 2003
Location: Las Vegas!
Posts: 10,143
Received 2 Likes on 2 Posts
Default

I do, now is 90 degree, everytime I got home, the car sit higher, I was thinking, WTH? my datasystem going wacko?
But then the next morning the car sits lower again.
This explained.
Thanks.
Old 05-01-08, 06:47 PM
  #6  
BNR34
Lexus Fanatic
Thread Starter
iTrader: (1)
 
BNR34's Avatar
 
Join Date: Oct 2002
Location: So Cal
Posts: 6,858
Likes: 0
Received 25 Likes on 22 Posts
Default

Originally Posted by blacksc400
I do, now is 90 degree, everytime I got home, the car sit higher, I was thinking, WTH? my datasystem going wacko?
But then the next morning the car sits lower again.
This explained.
Thanks.
Hey so my observations and theory is confirmed!

Thank you
Old 05-01-08, 07:06 PM
  #7  
airtime
Moderator

 
airtime's Avatar
 
Join Date: Apr 2007
Location: Washington
Posts: 1,321
Likes: 0
Received 13 Likes on 7 Posts
Default

Originally Posted by BNR34
airtime, do you see that with your car? Car sit high when hot and low when cold?
You know, I do notice that. But it seems to be more of one side than the other.

When the car starts up, the auto level kicks in and everything evens out again.
Old 05-02-08, 09:12 AM
  #8  
BNR34
Lexus Fanatic
Thread Starter
iTrader: (1)
 
BNR34's Avatar
 
Join Date: Oct 2002
Location: So Cal
Posts: 6,858
Likes: 0
Received 25 Likes on 22 Posts
Default

Originally Posted by airtime
You know, I do notice that. But it seems to be more of one side than the other.
umm, my car go up and down evenly with the temperature.

Originally Posted by airtime
When the car starts up, the auto level kicks in and everything evens out again.
mine does that too.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Sagane
RC F (2015-present)
10
01-18-16 12:31 PM
mehran888
GS - 4th Gen (2013-2020)
15
03-15-13 08:49 PM
bitkahuna
Car Chat
14
12-10-10 05:55 PM
ancdmd
LS - 3rd Gen (2001-2006)
8
08-15-10 08:18 PM
Ice350
Florida Lexus Club
37
01-10-10 02:06 AM



Quick Reply: Noticed funny behavior of stock UL's airbags.



All times are GMT -7. The time now is 10:46 AM.