TPM sensor leaking air

Is there a quick easy fix for this? I'm losing about 3-4 psi every 10 days. Leaking from arrow.

And yes my sensors are screwed up, flashing then it stays lit. Don't want to spend a fortune to get it fixed.

 

If those are OEM Toyota sensors, there is a stem seal kit through Toyota.

 

You can buy new sensors for $15-$20 each. Any tire store will install and program them for $10-$15 each. You have to get new valve stems anyway, might as well pay a bit more and get the sensors working again.

You don't tell us anything about your truck but I bought these for my 2007 and had them installed the last time I bought tires, no extra instillation charge with new tires. I had to buy a 5th for my spare so it did cost a little more.

$50 MORESENSOR Signature Series 315MHz TPMS Tire Pressure Sensor 4-Pack | Preprogrammed for Select 270+ Japanese Brand Models | Replacement for 42607-33011 | Snap-in | NX-S008-SN-4

Amazon.com: MORESENSOR Signature Series 315MHz TPMS Tire Pressure Sensor 4-Pack | Preprogrammed for Select 270+ Japanese Brand Models | Replacement for 42607-33011 | Snap-in | NX-S008-SN-4 : Automotive

Spending $60-$80 every 10 years for new sensors isn't expensive. Just do it.

 

Mine is a 07 so those would work. Just had tires put on but could barely afford those so TPM was out. Also my rims are pretty shot so if I'm going all in I might go all the way. Seems like a tremendous amount of work to get your sensors working, I wonder what Toyota charges, probably close to a grand.

 

@greyeyezz from the look of the wheels finish, I would say you have a seal problem. Any Discount Tire would repair the tire free and would include the TPMS rebuild kit.

 

Agreed, the seals around the TPMS are probably shot, especially if they weren't replaced when he got new tires (he mentioned that he just had new tires installed). It also looks like there is a lot of corrosion on the wheel itself as well as possibly the aluminum valve stem that is attached to the TPMS sensor.

I think the wheels and TPMS sensors should be replaced. The wheels appear to be corroded pretty badly, and they'll likely start leaking from somewhere else due to the corrosion. You can usually find nearly brand new, OEM take-off wheels for a very fair price on this forum. Just keep in mind that even if the take-off wheels come with TPMS sensors, the TPMS sensors in the take-offs won't likely work on your '07 Tacoma because Toyota has gone with different sensors over the years. I.e., if the take-offs are from a 2023 Tacoma and they're sold with the sensors in the wheels, you would still need to get a new set of sensors in order to regain functionality and to get the TPMS light to go off.

If you want to replace everything and regain TPMS functionality, then aftermarket TPMS sensors from Schraeder or HUF/BHSens (I use the latter in all of my vehicles) are very cost effective compared to new OEM sensors. There are other brands of TPMS sensors too, but these are the two brands that I have had success with. I've been using the HUF/BHSens Intellisens sensors in all of my vehicles without any issues for years (prior to that I used Schraeder EZ sensors without any issues too). The HUF sensors cost about 1/3 the price of OEM Toyota TPMS sensors and work just as well.

If you can only afford to fix the leaky valve stem right now, then the safest/cheapest method would be to have your tire installer remove the TPMS and replace them with new rubber TR413 valve stems.* Your TPMS light will stay illuminated until you get new sensors, but you won't have to worry about a leak from the valve stem for the time being. The installer should be able to do this without completely removing the tire (they can deflate the tire, break the top bead loose, unscrew the TPMS sensors, and pull through a new rubber valve stem), so the cost shouldn't be too high. If you continue to drive with the leaky valve stem you run the risk of losing too much pressure while driving, which would result in a tire blowout.

*Legally, the installer is not supposed to remove functioning TPMS sensors and replace them with non-functioning sensors or non-TPMS valve stems, but since your sensors are not functioning this is an acceptable and legal solution.

 

You can get a tpms seal kit (rubber washer, nut, schrader) for a few bucks. Maybe throw a little sealant goop on the rubber seal if the rim is pitted or corroded