New tire blow out

[The Artillerist]

I’m specifically curious about the mechanics that caused the tire to tear along its entire circumference on the back side of the wheel

Tires have less than 10k mi on them. Driving about 80 I hear a soft “pop”, as if a small piece of rubber hose bounced against the bottom of the car. Within 2 seconds dash notified of a tire failure and showed a loss of about 20 psi. We pulled over immediately.

Not an issue of over or under inflation. What could cause the tear around entire circumference? How does that happen?

 

[ctechbob]

What does the other side of the tire look like?

 

[stevejones]

With no air in the tire (rapid loss vs slow leak), all of the weight/mass of the vehicle on that corner flexed out the sidewall, causing it to tear in the manner shown.

 

[The Artillerist]

What does the other side of the tire look like?

Normal! Only the rear side looks like this

 

[SC Maintenance]

I am absolutely no expert on tires - but it appears to have rubbed on something that tore it from the outside - not blew from the inside. I have seen truck tires blow out - too much road and too much load as my dad would say. There a large tear at one spot pushing out, not a circle all the way around pushing in?

 

[skyactiv]

How old is the tire?

 

[The Artillerist]

How old is the tire?

Several months. They looked and smelled like new upon receipt

 

[Lubener]

Several months. They looked and smelled like new upon receipt

Scary. No advanced warnings?

 

[PontiacHO]

Either something in the inner fender rubbed the sidewall or it’s been run low in air.

 

[CapriRacer]

Look for a puncture. That tire was run flat!

 

[Kira]

1) Glad you're OK.
2) Gotta agree with those saying the "circular damage" was secondary to deflation.
3) Running aside uneven blacktop, like when they top one lane at a time, is the only thing I can think of.

 

[ctechbob]

Look for a puncture. That tire was run flat!

Yea, I was thinking that too, that's why I wanted to see the other side of that tire.

 

[nwjones18]

Several months. They looked and smelled like new upon receipt

What's the date code? I've gotten new tires installed only to get home and see a 5yo date code.. Agree with others it that it was run flat. going that speed it could have just been the time between something deflating it and you getting off the road. I've had an actual stick bounce around under a car and puncture a sidewall before causing immediate flat.

 

[edyvw]

Several months. They looked and smelled like new upon receipt

Date code? DOT? It is four digit number. First two are week and second two are year.
It is either age or physical damage.

 

[Marcozi]

I bet you ran over something in the road.

 

[Jetronic]

Look for a puncture. That tire was run flat!

I thought so too, but TPMS said no? I would expect more shoulder wear too.... If tpms is right I would say something rubbed.

 

[racer12306]

I thought so too, but TPMS said no? I would expect more shoulder wear too.... If tpms is right I would say something rubbed.

It it lost 10-15psi in a couple seconds per the TPMS, this was a catastrophic failure. Can a TPMS even keep up with that rate of pressure change?

 

[Jetronic]

It it lost 10-15psi in a couple seconds per the TPMS, this was a catastrophic failure. Can a TPMS even keep up with that rate of pressure change?

It appears to be ran significantly long on a low pressure before (and causing the) blowing out.

 

[dumkid]

I've done this to tires before, you run over something big and sharp, all the air is returned to it's natural habitat, and then the sidewall starts to melt. It's how you cook a tire with one simple ingredient (a piece of scrap metal)

 

[dumkid]

It also only takes a minute or so to destroy a flat tire if you're going highway speed