tires cupping on inside

[ROCKYFiestta]

any thoughts on what part needs replaced I got cupping on my driver side tire badly on the inside of the tire. stock suspension @58k.

 

[PunkST]

Hearing any clunking or popping when moving at low speed over bumps? Also drivers front or rear?

 

[ROCKYFiestta]

no not really now my regular sedan fiesta on the other hand does but its not cupping tires at all lol

 

[ROCKYFiestta]

just ate up my snow tire badly ill have to replace for sure but want to fix it before I let it eat another new snow tire.

 

[TyphoonFiST]

You will need to shake down the Supension but I'm putting my money on a tie rod or ball joint.

 

[Ford ST]

How often are you rotating tires?
The number one issue I have seen with cupping tires is shocks / struts that are dying.

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[PunkST]

My first culprit would be the upper shock and strut mounts themselves. Especially up front. My old focus was notorious for wearing them out rather quickly.

 

[HardBoiledEgg]

CUPPING IS CAUSED BY BAD SHOCKS AND STRUTS 100%

IF YOU DO NOT ROTATE YOUR TIRES THEN TRY THAT. BUT IF YOU DO EVERY 5K THEN TIME FOR NEW SUSPENSION

 

[PunkST]

No need to yell.

 

[TyphoonFiST]

UNDER INFLATED TIRE CAN ALSO CAUSE CUPPING!

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[Shikari]

My show tires are super cupped but I drive hard and roll around on 32psi all winter. Since I can't have fun I might as well be comfy.

 

[ROCKYFiestta]

How often are you rotating tires?
The number one issue I have seen with cupping tires is shocks / struts that are dying.

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im fairly certain this is the issue because the ride is getting more bumpy lately and still on the stock suspension at 58k now on the car and its a 14 model that I use to drive on dirt roads a lot and I still do.

 

[ROCKYFiestta]

the snow tires where put on back in October they were not cupped then, but now the driver side one is looking nasty its time for new shocks and springs car is getting really bouncy but no shocks are blown at this moment

 

[RubenZZZ]

the snow tires where put on back in October they were not cupped then, but now the driver side one is looking nasty its time for new shocks and springs car is getting really bouncy but no shocks are blown at this moment

Bouncy means the the shocks can not control the up/down ocillations from the springs. Worn out strut I bet.


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[ROCKYFiestta]

yes it is definitely bouncy my niece was making fun of the suspension by making noises like uh uh uh uh uh uh uh when we drove over a rougher patch lol I guess she can feel the oscillations since shes a kid it feels like a pogo stick she said

 

[TyphoonFiST]

You will need to Jounce the front and back bumper by pushing down on it hard....if the suspension doesn't stop after the initial push down ...its time for new struts and shocks....replace all 4 ....dont be frugal as it never pays off in the end.

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[Ford ST]

Some vehicles are so stiff that test doesn't work. On my 2010 Ford Focus the driver side front was like a marshmallow it was completely toasted. On my dad's Ford ranger he was getting vibration. I did that test it didn't act off but his shocks were toasted. From what I understand shocks have multiple stages of valving in them to deal with different road conditions pothole, broken pavement and so on. The point I'm trying to make you can do that test and everything seems fine but your shocks can still be dead.

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[Intuit]

UNDER INFLATED TIRE CAN ALSO CAUSE CUPPING!

Yup; my first thought as well. Start with the most simplistic and cheapest explanation... and test for it. Second, you may need an alignment. Some shops do front end work and subsequently skip the alignment. The results can be any one or more of: a rough ride, poor turning, squealing when turning, as well as Foxed up tires.

Overheating the snow tire may also result with unusual wear. Under-inflation increases tire temps due to additional flex.

Suspension has a spring, and has a strut. If your car goes ¡SLAM! or ¡BANG! then that's an issue with the spring, or it's seat, or the mount, or both. (or the alignment for the front) Since these vehicles are lowered, they tend to bottom-out easier than normal vehicles. I've bottomed out at least a few times over the past few years. If your car goes bouncy-bouncy *all* the time then that's the strut(s). Some roadways and at certain speeds can resonate with your suspension; producing a *controlled* bouncing effect, even though the struts technically aren't bad. Though people don't usually do it, the spring and strut can be independently replaced. A strut can be tested outside of the vehicle. Spring, seat and mount damage are typically visible upon inspection.

 

[ROCKYFiestta]

the car is definitely bouncy-bouncy lol love that terminology
looks like struts are going to be needed then followed by an alignment.