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Do I need the whole TPMS sensor to fix air valve?

Discussion in 'Gen 3 Prius Technical Discussion' started by kikik, May 24, 2018.

  1. kikik

    kikik Junior Member

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    I couldn't take off the cap of the air valve so I wrenched it. Then the whole tip came off. Meaning the part where you screw on the cap that has grooves came off. This is the remaining part that is left
    [​IMG][/URL] [/IMG]

    and then this came out

    [​IMG][/URL] [/IMG]

    I was looking online and they sell this

    [​IMG][/URL] [/IMG]

    But then there's no groove to put the cap on...so do I need to buy this?

    [​IMG][/URL] [/IMG]

    If anybody can help me I'd really appreciate it! Thanks!
     
  2. kikik

    kikik Junior Member

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    Sorry do over.

    I couldn't take off the cap of the air valve so I wrenched it. Then the whole tip came off. Meaning the part where you screw on the cap that has grooves came off. This is the remaining part that is left

    [​IMG]

    and then this came out

    [​IMG]

    I was looking online and they sell this

    [​IMG]

    But then there's no groove to put the cap on...so do I need to buy this?

    [​IMG]

    Sorry for the repeat!! Please help!!
     
  3. Lucifer

    Lucifer Senior Member

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    Yes, you need a new tpms
    Somehow it has to be paired with the car, if the dealer installs it they can pair it with the car, otherwise, you have to change all four, to instal one the tire has to be off.
    Checking a tire store to see if they can pair a single is a good idea.
     
    #3 Lucifer, May 24, 2018
    Last edited: May 24, 2018
  4. Salamander_King

    Salamander_King Senior Member

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    Yap, unfortunately for OEM TPMS the stem is a part of TPMS. You will have to buy a new TPMS. If you don't want this to happen again and if you don't mind un-matched stem, I suggest purchasing aftermarket TPMS like this Schrader EZ-sensor at local tire shop. If you bring your car to a dealer, OEM TPMS installation will cost you upward of $200. With aftermarket one, most local shop will do it around $50.
     
    #4 Salamander_King, May 24, 2018
    Last edited: May 24, 2018
  5. Salamander_King

    Salamander_King Senior Member

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    TPMS re-learning can be done at any tire shop or most of full service auto shop. In fact if you have scanner/programmer, you can do it yourself. But since the tire has to be removed and remounted in order to install a new TPMS, let the shop do it. Also, you DO NOT need to change all four TPMS.
     
  6. kikik

    kikik Junior Member

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    Ok, thank you very much!! I will call around tomorrow and get an estimate. :)
     
  7. Mendel Leisk

    Mendel Leisk Senior Member

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    Were you using metal valve caps? They've been known to corrode and lock on. Plastic is safer.
     
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  8. Salamander_King

    Salamander_King Senior Member

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    I forgot to write that if you get aftermarket TPMS like Schrader EZ-sensor, the actual TPMS sensor is attached to the stem piece with a screw, so if you ever have problem just with stem, you can change it without buying whole new TPMS sonsor. The stem piece alone is less the $10.
     
    #8 Salamander_King, May 24, 2018
    Last edited: May 24, 2018
  9. kikik

    kikik Junior Member

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    Would it affect the sensor reading? Will Toyota get upset if I had to go in and have them do something?
     
  10. kikik

    kikik Junior Member

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    Yes, I'm learning the hard way....after I get this fixed I have to try and take off the other 3...one by one lol I only have 1 spare tire!!
     
  11. Salamander_King

    Salamander_King Senior Member

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    Not at all. It will function just as good as OEM sensor. And It's your car. You can install any aftermarket parts you want, that is if you want to save ~$150.
     
  12. kikik

    kikik Junior Member

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    Ok, thank you so very much!! I LOVE this Prius forum, I wish I knew of it 5 years ago when I first bought my Prius! :)
     
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  13. Salamander_King

    Salamander_King Senior Member

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    Let us know how it goes. I learned hard way myself for my first car with TPMS. Took to a dealer four times for failed TPMS (dead battery), each time costing me ~$200. At fifth time, I took the car to a local shop and they charged me only $40, parts and labor included. :LOL:
     
  14. Mendel Leisk

    Mendel Leisk Senior Member

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    Maybe spray some silicon on the cap, hopefully it'll wick up into the threads, help to loosen things. Use a pair of pliers gently. If it's not happening, maybe run it by a tire place, tell them whats happening. They might have some tricks, like heating the caps for example.

    And yeah from then on: plastic caps.
     
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  15. fuzzy1

    fuzzy1 Senior Member

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    Use a tire shop. No Toyota shop ever needs to know, nor will they even notice unless you point it out to them. Nor are they legally allowed to keep you from using service from other providers.
    And while the shop will need to re-program all four TPMS codes into the car, that isn't an issue. Their tools will very easily read the codes from the three older sensors with an RF device that reads right through the rubber sidewall, without any need to remove the tires. It is just standard tire shop work.
     
    #15 fuzzy1, May 24, 2018
    Last edited: May 24, 2018
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  16. kikik

    kikik Junior Member

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    Ok!! Thank you all so much! I will call a few tire shops tomorrow and get estimates. I will post what happens. Thanks again! ❤️
     
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  17. ChapmanF

    ChapmanF Senior Member

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    Plug in Techstream under the dash and you can just read all four IDs as they are right now. I'm guessing it won't be hard to tell which ID is the one to replace with the new one ... judging from the picture, I'd say it'll be the one reading 0 psi.

    -Chap
     
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  18. Mendel Leisk

    Mendel Leisk Senior Member

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    Be sure to get the other metal caps replaced asap too. Hopefully this can be accomplished without further damage. They seriously should ban those; they're the wheel and tire equivalent of lawn darts.
     
  19. kikik

    kikik Junior Member

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    I don't have it on. It blew air like crazy making hissing and whistle noises (only positive thing about this was I got to witness this!) so it's a spare right now. There was no light in the dash so I am assuming the spare also has the TPMS built in?
     
  20. Mendel Leisk

    Mendel Leisk Senior Member

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    The regular spare doesn't have TPMS. If there's one TPMS sensor away from the car, and/or on a deflated tire wheel, the TPMS warning should be on. With the car on.