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*SNAP* goes the tire valve

Discussion in 'Model S' started by scaesare, Jan 20, 2016.

  1. scaesare

    scaesare Active Member

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    #1 scaesare, Jan 20, 2016
    Last edited: Jan 20, 2016
    Not terribly Tesla-specific, but it did happen on my S, so here goes:

    The top portion of one of my tire valves snapped off:
    valve core 1.jpg

    This while attempting to use my valve wrench:
    SKU081619B (1).JPG

    to remove it.

    Now I can just spin the top broken portion of the valve with the wrench, while the body remains threaded inside the stem.

    Fortunately, it still holds air.

    Any thoughts on how to remove the remaining portion of the valve body?

    Thanks.
     
  2. KES16

    KES16 Member

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    #2 KES16, Jan 20, 2016
    Last edited: Jan 20, 2016
    You will most likely have to replace the whole valve. I see this all the time with the aluminum TPMS valves ( I own a tire shop). Very common issue unfortunately
     
  3. scaesare

    scaesare Active Member

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    The cold weather likely didn't help.

    Thanks KES16.
     
  4. 3mp_kwh

    3mp_kwh Member

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    The TPMS valves are threaded, and even hex'd so you can unscrew the outer shell from the valve body which then goes inside the wheel. I'd first test to see if you can begin to unscrew the outside of the stem. If so, buy another one. Then, fully deflate the tire, begin unscrewing the valve body until you can get pliers to hold it by the threads (so that it doesn't fall inside the tire). Then, finish unscrewing and replace the broken body. The needed torque is very small, inch pounds, enough so it doesn't leak.
     
  5. KES16

    KES16 Member

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    He means the valve core is broken unfortunately. The TPMS "nut" won't fix this problem. You would need to dismount the tire as the actual valve needs to be replaced.
    Picture of the sensor "nut" 41SOng0Vg4L._SX425_.jpg


    You are actually lucky as a lot of times the actual valve snaps and your tires goes flat instantly. At least currently the tire will continue to hold air!
     
  6. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

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    A small easy-out should be able to remove it without having to demount the tire.
     
  7. scaesare

    scaesare Active Member

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    The core still has the "pin" intact, and the broken-off "crown" is still there too... it just spins on the pin endlessly. With all that there, I don't see how I'd be able to thread an EZ Out in there without having to drill the valve core, which be challenging with the pin, etc... in the way. Not to mention the shavings that would end up inside the tire and or pressure sensor.

    I suspect having the entire valve stem replaced is indeed the only easy option. But maybe somebody else will chime in...

    Thanks.
     

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