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Old 02-06-2012, 04:35 AM   #1
Klepton
 
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Special stem valve caps for TPMS?

I am trying to replace the stock plastic stem valve caps on my car with the following set:

http://www.ebay.com/itm/390388351417...84.m1423.l2661


However, part of the description for this item states the following:

"Cap will fit on standard tire stem. (please check if you have TPMS on your car)"

Does that mean that our cars, equipped with a TPMS, require special stem valve caps?
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Old 02-06-2012, 06:39 AM   #2
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the TOP of every valve stem is the same......the typical MALE SCHRADER fitting.....those caps will work, you can put them on any Camaro......or even on a bicycle of you have a mind too..

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Old 02-06-2012, 09:04 AM   #3
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Valve caps

As previously posted the caps will fit, however, the TPMS valve stems and caps are longer,
and any non TPMS cap will leave some exposed threads on the valve stem and may not look the best.
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Old 02-06-2012, 02:20 PM   #4
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Thanks for the replies. So does anyone know where to find chrome/aluminum valve caps with the Camaro SS logo similar to the ones in the ebay auction I found, but with an exact fit for our valve stems?
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Old 02-06-2012, 02:45 PM   #5
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if nothing else.....go to the Chevy Mall, they are $12.95....the picture they have on their site is pretty much the same caps....but at least its a GM site. Here is a link to the page.

http://www.chevymall.com/searchprods.asp
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Old 02-11-2012, 04:56 AM   #6
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Unhappy

Quote:
Originally Posted by Sir Nuke View Post
if nothing else.....go to the Chevy Mall, they are $12.95....the picture they have on their site is pretty much the same caps....but at least its a GM site. Here is a link to the page.

http://www.chevymall.com/searchprods.asp
Thanks, but unfortunately even this GM site states the following in the description of the caps:

"These stem covers will fit on all standard air valve stems."

With that said, I'd have the same problem as the ones being sold elsewhere (eBay, etc.) that leave about 1/4" of brass showing under them.
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Old 02-11-2012, 10:36 AM   #7
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To be honest, I wouldn't put aftermarket valve caps on my car. Mostly because of how often/easily they can be stolen. Just my two cents.
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Old 02-11-2012, 10:54 AM   #8
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y put valve stem caps on?
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Old 02-11-2012, 11:52 AM   #9
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Keeps dirt out of the valve and allows it to seal effectively.
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Old 02-11-2012, 12:57 PM   #10
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Quote:
Originally Posted by Powhusku View Post
To be honest, I wouldn't put aftermarket valve caps on my car. Mostly because of how often/easily they can be stolen. Just my two cents.
That's why I don't want to get expensive ones.

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y put valve stem caps on?
Because I don't like the look of the stock black plastic ones. I want some plastic chrome or aluminum ones.
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Old 02-11-2012, 04:06 PM   #11
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Y'all can't do this. First the valve stem on the 2010's is different, it takes a larger Cap.
I took the time to look up this information up.

First is a warning from the Bimmerfest web site:

TPMS Valve Stem Caps - Warning!
If your car has TPMS, and they all do since 2005, don't put aftermarket metal valve caps on the stems!
The stems require silver colored plastic caps, or nickel plated metal caps. If you use chrome plated caps, or metal caps made the old way then you may be in for a big surprise. I had to tow in a car today which the customer put metal replacement caps on two years ago. When he tried to remove the metal cap the valve stem snapped off, the core popped out and the tire deflated before his shocked eyes.
We tried every trick we know to get the other three caps off. We couldn't, they had become one with the valve stem. All four TPM sensors had to be replaced.
What is happening is that road salt is getting between the components and causing corrosion to accelerate. Eventually corrosion eats right thru the stem greatly weakening it.
Although I've read about this problem for a while in the trade mags, this is the first time I have personally encountered it.
So, a special advisory to you snow belt 'Festers; don't use those fancy looking aftermarket metal caps. You could get a rude shock one day when you go to add air to a low tire.
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Old 02-11-2012, 07:52 PM   #12
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the problem with cheep metal caps is they end up corroding and get stuck OR GALLED on.....if you put some lube on the threads.....they wil not get stuck and come off easy as pie. Mine have been on for 2 1/2 years.....checked the pressure now and then.....naver had an issue.......and never will.
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Old 06-22-2013, 08:52 PM   #13
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Anti-seize compound works very nicely to prevent dissimilar metal "welding." Doesn't keep brats/punks from stealing 'em, tho. That's why I have a CWCP...although I wouldn't use force to prevent loss of property...as much as I might want to.

I just put the SS caps on at shows, then take 'em off afterward.
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Old 06-22-2013, 10:06 PM   #14
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Quote:
Originally Posted by Sir Nuke View Post
the problem with cheep metal caps is they end up corroding and get stuck OR GALLED on.....if you put some lube on the threads.....they wil not get stuck and come off easy as pie. Mine have been on for 2 1/2 years.....checked the pressure now and then.....naver had an issue.......and never will.

waaay overthinking this....nuke has it correct..make it part of your maint program and you'll have no problems - I run the SS emblems chevy mall sells....

and I run with scissors too!! OMG!
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Old 06-22-2013, 10:59 PM   #15
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Quote:
Originally Posted by Klepton View Post
I am trying to replace the stock plastic stem valve caps on my car with the following set:

http://www.ebay.com/itm/390388351417...84.m1423.l2661


However, part of the description for this item states the following:

"Cap will fit on standard tire stem. (please check if you have TPMS on your car)"

Does that mean that our cars, equipped with a TPMS, require special stem valve caps?
Bought these when I first got my Camaro. Looked terrible with the threads exposed. Way too short.
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Old 08-21-2013, 09:32 PM   #16
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I would go back to your dealer to have them give you the longer caps that come with your car originally. Don't feel bad that you're being picky.

I got my oil change at a dealer and while checking the tire pressure the tech forgot to replace a cap. Not realizing the cap was missing I didn't notice until the next day. Called the dealer to mail a new one. They did but it was the wrong size. I ended up driving back to the dealer to get the correct cap only to find out caps for the 2010 models are minorly different than what GM uses now. So I took four of the newer style caps(so they would all match) and went out the door. Well, anxiety of, IMO, a less appealing and unoriginal style got to me. Luckily there was a carmax across the street where I could trade a new for an old 2010 cap. Life has been much better thereafter.
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Old 08-21-2013, 09:35 PM   #17
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The caps also have an amount of carbon in them to extend the range of the TPMS, under low voltage situations, aftermarket caps may reduce the effective range of the TPMS, throwing a code. This was from an engineer at GM.
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