18" All-Seasons: Flat/Gashed Tire At Speed

Kazz

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Sorry this is long! But I thought I'd let folks know what it's like to use the OEM jack kit as well as relate the story!

So I was somewhere around 75+MPH taking an on-ramp onto the local interstate, heavy in the curve, when the info center lit up about a low tire warning. It changed to the display of the car and tire pressures. My passenger rear tire had suddenly dropped to 6psi. I did what I could to slow the car down rapidly, but safely, and get to a safe-ish spot on the side of the road.

Folks I've not had a flat tire, nor a a need to use the OEM jack kit on a car in a number of decades. And I've literally put millions of miles on cars over that time. But I jumped out and got busy - without reading the manual.

The kit's nicely kept in a styrofoam "jig" atop the (50mph max) spare. The scissors-type jack needed to be lowered in order to slide under the car. And there's a slot in the top of the jack that the seam weld fits into between the visible notches inboard of each wheel well. I really wasn't sure how I was supposed to move it once loaded. You fit something into the hole and use that something as a lever to rotate the quarter-to-half-turn, then slide it to the opposite side for the next partial rotation.

Before getting the tire in the air, I used the included lug wrench to loosen the lug nuts. They must have been around proper torque because they came off easily enough with some effort - not like some "mechanics" that torque them on beyond spec. Also, there is a (Phillips??) screwdriver that I used to gently pry off the centercap. I looked to see if any of the spokes of the centercap had a notch that I thought I'd heard someone mention, but didn't see it. So I tried a couple of spokes lightly before one gave me a purchase I liked and it popped off with a small bit of effort.

Jacking her up was slow, but effective. It wasn't very hot and it wasn't raining or snowing, or I'm sure I'd think it was REALLY slow. This is when I made the observation that concerned me a bit. As a scissors-style jack increases in height, it reduces it's width. That forces the lever you're using to move closer and closer to the car (PAINT!). I cupped the lever tool to help prevent banging the car. It takes enough partial rotations to get you in a hurry, bored, etc., and risk being careless. But it was very do-able.

Removed the lugnuts and began to swap for the spare. Here's where I found out I needed more clearance to get the spare on, so I jacked her up the bit more, mounted the wheel, tightened the lugnuts, lowered her, and loaded everything back in the car.

Tire store was less than 10 miles away. They inspected and found a full one inch gash in and through the outermost treadbar. No nail or screw or anything.

VERDICT: Well, the sidewall was trashed on the inside. I'm used to that being the case when a flat is driven on for longer distances. But I'm guessing that the problem here was the immediate deflation. I needed a new tire. Also, the wheel was slightly bent (?!?!), but they declared it safe to hold air and drive on. I got the cheapest same-size AS tire (a Nexxen), paid ($140USD) , and thanked them.

Folks, without that info center alert, I don't think I'd have known. I'd have lost that wheel completely. I like to think I have a sensitive driver's rear end. But I seriously didn't feel it let go. So, thanks for the tech, Kia!

I was plotting to replace the all-seasons for snows this fall. But after that expense, I think I'll go through a full winter on the all-seasons and get after snows, as well as a set of summer wheels and tires, next year.

Here's a pic of the kit laid out. I used the hook as the lever. And I imagine that loop with the large, threaded rod is for tie-down or tow hook???

IMG_20180719_131022.webp
 
Did you the main tire fit the spare trunk well ok or did you put in the cargo area? Just curious as it seems like the spare takes up all of the avail area there and the regular tires are much wider and bulkier
 
Did you try pulling the metal part of the screw driver out of he handle? I’ve seen cars come with a metal part that has a Phillips on one end and a flat head on the other.
 
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I didn't try it in the well, sorry! Mine are 18" not 19", too. Given having to jack it up to get the spare on, I'd think it'd fit. Although the 18" all-season's wider.
 
Did you try pulling the metal part of the screw driver out of he handle? I’ve seen cars come with a metal part that has a Phillips on one end and a flat head on the other.
Man, didn't even think of that. LOL
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
No bueno. I took a 6 inch bolt to a tire, dropped about 20 psi in 10 minutes and bent the wheel. So I feel your pain.
 
@Kazz thanks for the detailed spare tire story. But a bent wheel? That had to have happened at the same time. I didn't know that they were so delicate. I've only owned one set of fancy wheels before this. And fortunately I never had to resort to my spare during the five or so years I had the fancy wheels. Before that you'd have to go back another most of five years to the last time I put on a spare "in the field". Of course, we always cross our fingers when we set out on a drive. One of the things I am on the lookout for all the time is anything in the road. I don't care if it's just a blowing plastic bag. I will dodge to avoid everything larger than leaves.
 
@Kazz thanks for the detailed spare tire story. But a bent wheel? That had to have happened at the same time. I didn't know that they were so delicate. I've only owned one set of fancy wheels before this. And fortunately I never had to resort to my spare during the five or so years I had the fancy wheels. Before that you'd have to go back another most of five years to the last time I put on a spare "in the field". Of course, we always cross our fingers when we set out on a drive. One of the things I am on the lookout for all the time is anything in the road. I don't care if it's just a blowing plastic bag. I will dodge to avoid everything larger than leaves.
I’ve be never bent a wheel before. I bent 2 OEM wheels on the Stinger. One I have no clue how it got bent, the other was from the random huge bolt. Maybe they are a little on the soft side or maybe it’s because of the low profile tires? I am just glad I upgraded to rotary forged!
 
I go in for my second maintenance and "check up" tomorrow. If they tell me I've got a bent wheel then I will have a benchmark on how "soft" these OEM 19s are. I had one palpable *thump* a few weeks back that I thought was pushing things a bit. And I tensed my concentration to detect any changes in the way the car handled or felt or sounded. Nothing seemed altered so I forgot about it.

But after reading this I will be even more cautious about road conditions. For sure, I've always believed that giant wheels with "rubber band tires" are just the thing for wheel manufacturers; they love 'em! Race cars are better for them. But street cars? I've grown accustomed to them being everywhere. And now I actually have a car with them.

My wife's first observation when she saw the car I was buying was: "I can't believe that you are getting one of those cars with thin tires, after all you've said against them, all the fun you've made of the drivers who have them!"

My rebuttal was: "I only said they are absurd on pickups, SUVs and off-road vehicles. On high performance cars they make sense." (I'm sure I lumped all high aspect ratio tires into one scorned category, back then, but like a certain POTUS, I can make my memory selective if it will make me look better. :P).
 
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From interior to exterior to high performance - everything you need for your Stinger awaits you...
@Kazz thanks for the detailed spare tire story. But a bent wheel? That had to have happened at the same time. I didn't know that they were so delicate. I've only owned one set of fancy wheels before this. And fortunately I never had to resort to my spare during the five or so years I had the fancy wheels. Before that you'd have to go back another most of five years to the last time I put on a spare "in the field". Of course, we always cross our fingers when we set out on a drive. One of the things I am on the lookout for all the time is anything in the road. I don't care if it's just a blowing plastic bag. I will dodge to avoid everything larger than leaves.
I've had alloy wheels bend from the terrible roads around here before. As well, the cracks and potholes make it hard to notice foreign objects sometimes. LOL This is the first time I've had virtually all the air exit a tire in an instant like this. Kind of an eye opener!
 
I've had alloy wheels bend from the terrible roads around here before. As well, the cracks and potholes make it hard to notice foreign objects sometimes. LOL This is the first time I've had virtually all the air exit a tire in an instant like this. Kind of an eye opener!
With high aspect ratio tires, wouldn't it be insurance to spend more on ZP (zero pressure) tires? They are touted good up to fifty miles on no air (and up to 50 MPH). That way the rim would survive, and likely the tire as well. We would get instant warning like you did: "Warning Will Robinson! No pressure!" And our next stop would be at a reputable tire place.
 
With high aspect ratio tires, wouldn't it be insurance to spend more on ZP (zero pressure) tires? They are touted good up to fifty miles on no air (and up to 50 MPH). That way the rim would survive, and likely the tire as well. We would get instant warning like you did: "Warning Will Robinson! No pressure!" And our next stop would be at a reputable tire place.
They're much heavier and their performance dynamics are different, as I understand it. And I don't understand how we'd get instant warning - unless the vehicle had TPMS, which mine haven't in the past.
 
They're much heavier and their performance dynamics are different, as I understand it. And I don't understand how we'd get instant warning - unless the vehicle had TPMS, which mine haven't in the past.
You said: "So I was somewhere around 75+MPH taking an on-ramp onto the local interstate, heavy in the curve, when the info center lit up about a low tire warning. It changed to the display of the car and tire pressures. My passenger rear tire had suddenly dropped to 6psi."

So that seems "instantaneous" to me. I'm not talking about other cars, just Stingers with this tire pressure warning system. Do all the trims have it?
 
You quoted what I said today, which was about other cars I've owned in the past bending rims, so I was confused.

It was instantaneous. I likely wouldn't have known of the problem for quite a while and completely trashed the wheel. I don't know if all the trims have it. I'm guessing that it's not available on the lowest trims.
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
... I don't know if all the trims have it (TPMS). I'm guessing that it's not available on the lowest trims.
I checked it out. And TPMS is on all trims. It is even recommended to buy a second set of sensors for winter rims (rather than transfer the TPMS sensors back and forth). Here's a Stinger Forum thread on TPMS sensors. Kia Stinger TPMS Valve
 
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