Phantom deflation on stock SAS

[userdude]

I've got a stock 23 2Dr BD SAS and randomly got a FordPass notice I had a flat tire a week ago.

I had driven it a couple days before (I also have a truck) and no issues, got it washed etc at Buc-ees then straight home to the garage.

Then at 5am or so got the notification the rear passenger tire was at 26 (soon to be 24) psi. I went and manually tested and 24 psi was accurate.

I aired up to 39 (what the others are at) and mentally noted to bring to dealership (still within tire warranty ). Then a few hours later checked on FordPass and it was still 39psi.

Now a week later, still at 39psi (I drove about 50 miles Sunday for NT Bronco Club meetup, no offroad).

Should I be concerned? I don't really want to mess with the hassle of a trip to the service department ("Yeah, we'll keep it for a week, can you walk home or wait two hours for a ride?!?"). But I also don't want to have a redux at some random time. I did have a flat on another tire the first Friday after I received (stupid screws).

Thoughts?

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[Shazamalingo]

Someone messed with you and let the air out?

 

[userdude]

Someone messed with you and let the air out?

A worthy guess, except it was middle of the night in a closed garage. I didn't open it that Monday and was in it when it was opened briefly so I could access my truck in the driveway on Sunday. I did think of that (my neighbors son maybe?), but it's very unlikely.

 

[userdude]

One caveat I suppose is that I lost the cap on the stem when I went offroading a couple weekends before and aired down for that. The weekend before I'd magically found another cap and put it on, so it had a cap on for over a week when it lost pressure. I did offroad with the cap off, so maybe it got some sand stuck in the stem?

I guess I'm eying the whole beadlock thing, these are the first I've had (third 4x4) and not sure if that could be suspect. We've also had some weird weather in North Texas last three weeks, but don't know why this one tire would have an issue but not the others.

 

[Montana Bronco]

Do you have a dog ?





*see other thread

 

[userdude]

Do you have a dog ?





*see other thread

That I did NOT think of; I do not, but my cat did try to gnaw that apple... lol

I had a sheltie (who was a GOOD DOG) who liked to bite the tires on my bike. Not outside the realm of reason I suppose...

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