Problem number two
Tech Contributor
Joined: Oct 1999
Posts: 41,037
Likes: 9,801
From: Charlotte, NC (formerly Endicott, NY)
Originally Posted by StealthS
I don't really understand what you are saying here, but did you know that air is more than 78% pure Nitrogen? Alomost all the rest of air is Oxygen (20%) which weighs and behaves almost the same as Nitrogen. So I doubt you will get any measurable difference or perfomance between an air-filled tire and a Nitrogen-filled tire.
I have never heard of a Nitrogen-only-filled tire. Is this common practice? If so, can someone tell me why? It won't be much different that air, so I don't understand...
I have never heard of a Nitrogen-only-filled tire. Is this common practice? If so, can someone tell me why? It won't be much different that air, so I don't understand...
Bill
Le Mans Master
Joined: Apr 1999
Posts: 7,837
Likes: 107
From: Huntington Beach California
Originally Posted by RedC6Coupe
The owner's manual (p 5-61) says that a warning message will appear on the DIC if a tire is underinflated (falls below 24 psi) or overinflated (above 42 psi). Even if you're running 35 psi, that's 7 psi under the limit. Sounds like a sensor might be bad in that tire. Don't think you'll see more than 3 or 4 psi added or subtracted for cold vs hot tires.
Burning Brakes
Joined: Apr 2002
Posts: 937
Likes: 3
From: Austin Texas
Originally Posted by jabez
I can take this car to any Chevy dealer right?
There is a dealer about two miles from work and i can just drop it off before I head out to work.
There is a dealer about two miles from work and i can just drop it off before I head out to work.
Moderator Emeritus
Joined: Apr 2002
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From: Always living in a state of Confusion.
Gone, but not Forgotten
Cruise-In 5, 6, 8 & 10 Veteran
St. Jude '03-'04-'05-'06-'07-'08-'09
Just take it to the damn dealer. You paid for it...let them fix it.
Burning Brakes
Joined: Apr 2002
Posts: 937
Likes: 3
From: Austin Texas
Originally Posted by 98BlackMagic
Just take it to the damn dealer. You paid for it...let them fix it.
Advanced
Joined: Nov 2004
Posts: 96
Likes: 0
From: Tallahassee FL
Originally Posted by Bill Dearborn
Racers use Nitrogen filled tires. Air from the atmosphere contains one thing Dry Nitrogen from a tank does not contain. That is water vapor. Once you have all the water vapor out the tire pressure is more predictable over the temperature range of the tire. Racers use tire pressure to adjust spring rates and to adjust tire temps within the operating temp range of their tires. Nitrogen filled tires are the reason NASCAR can add a half pound of air to a tire and get a change in handling, etc. If they just had air from the atmosphere the changes would not be predictable enough.
Bill
Bill
OOOHHHhhhhh... So it really hasnothing to do with nitrogen, it is the fact that the gas they use in the tire is completely dry with no water vapor. So, if you could have completly water vaporless air, that would be just as good. My guess is that it is much easier and cheaper to pull pure, dry nitrogen out of the atmosphere and store it in a tank than it is to try to pull all the water vapor out of air and store the air in a tank.
Thanks for the answer. That is interesting stuff. Clearly I am not a racer :o
Thread Starter
Race Director
Joined: Apr 2004
Posts: 17,066
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From: Milpitas ca
Originally Posted by richbell
Yeah.. but don't just drop it off. They most likely don't/won't have the parts. Most parts for C6s are still not in inventory in any quantity. Let them look at it and write the report. Then call you when they have a part.
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CRAZFST
Joined: Oct 2004
Posts: 529
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From: Lawrence, KS
One more advantage to Nitrogen filled tires is that the nitrogen is non-reactive and doesn't react with and deteriorate the the inside of the tire. That is why semi's are starting to use it as they like to reuse (retread) the tire carcass. I think that would be smart to use for anyone that only slowly puts mileage on their vette or stores it such that the tire ages faster than it gets worn out. Nitrogen also holds tire pressures very well over time so less adjustment of pressure needed. I've heard of 2 years between pressure adjustments.
Team Owner
Joined: May 2004
Posts: 82,175
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From: McKinney TX
St. Jude Donor '21-'22-'23-'24
Glad they discovered the cause and you were able to order the new sensor. It was interesting to get inputs from everyone, especially to learn that the DIC pressures reported are sometimes off by as much as a couple of pounds like mine are.
Racer
Joined: Aug 2004
Posts: 420
Likes: 0
From: Leesburg Central Florida
tire pressure
My DIC reads 27 to 28 all four tires. If it is right am I under inflated? I will check it manually tomorrow. If manually reads 30 then 27 is wrong and I need sensors replaced? 
Burning Brakes
Joined: Sep 2004
Posts: 839
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From: Salinas Ca
Originally Posted by richbell
Yeah.. but don't just drop it off. They most likely don't/won't have the parts. Most parts for C6s are still not in inventory in any quantity. Let them look at it and write the report. Then call you when they have a part.
The service dept HAS to write a RO for the problem/parts to be recognized and ordered. You don't have to leave the car - just make sure you get a copy of the Repair Order! Later, when you have to call GM Customer relations about the parts - you have "official" paper work to quote!
Team Owner
Joined: May 2004
Posts: 82,175
Likes: 1,319
From: McKinney TX
St. Jude Donor '21-'22-'23-'24
Originally Posted by RickerFL
My DIC reads 27 to 28 all four tires. If it is right am I under inflated? I will check it manually tomorrow. If manually reads 30 then 27 is wrong and I need sensors replaced?
Go with the pressure gage or borrow another one for verification if you don't have another one.
Burning Brakes
Joined: Sep 2004
Posts: 839
Likes: 0
From: Salinas Ca
Originally Posted by jabez
Natejohn...
"...what about your car? Weren't you the one with a bad hatch struts?
"...what about your car? Weren't you the one with a bad hatch struts?
I've since driven to the dealer (30 miles) and had them lift and drop the hatch so they could issue said RO.......couple weeks wasted.
Not that big a deal 'cept I want them to look into the non-functional F55 and TCS switch...get it all done at once.
Still love "her" though<G>!
Racer
Joined: Aug 2004
Posts: 420
Likes: 0
From: Leesburg Central Florida
update:
I used several gauges to check tires cold. Gauges all read 26. DIC read 24.
Inflated tires to 30 cold, DIC reads 28 all around.
Probably not going to worry about +/- 2 on the DIC.
I used several gauges to check tires cold. Gauges all read 26. DIC read 24.
Inflated tires to 30 cold, DIC reads 28 all around.
Probably not going to worry about +/- 2 on the DIC.