Car flexes side to side when turning steering wheel while static.

[Bepis_Corgo]

I have a 2018 GT1 Stinger, and I noticed a number driving experience. Almost like power steering is a bit off. Drives straight, keeps straight. 90 on highway, no issues. Turning causes some flex and is a bit harder than usual. Zero noise.

Eibach sways and coil springs on soft setting with Whiteline end links. Visually, seems fine. Could it be a snapped coil spring? I'm in the middle of a move so I can't just raise my car where I'm at.

Any advice or suspicions?

 

[Snicklefritz]

I don't understand your title, and then you say nothing about sitting 'static' in your op. eh?

 

[Bepis_Corgo]

When the car is static. It is not moving. So when I'm parked and I turn the wheel, the front of the car literally flexes left and right as the steering wheel is turning. I just got it up on a lift and it looks like a bad endlink bushing. I don't see how just that could do that though.. I measured my caster at 7 degrees

 

[D.J.]

When the car is static. It is not moving. So when I'm parked and I turn the wheel, the front of the car literally flexes left and right as the steering wheel is turning. I just got it up on a lift and it looks like a bad endlink bushing. I don't see how just that could do that though.. I measured my caster at 7 degrees

End link bushing?? say what?

sway bar bushing??

 

[D.J.]

When the car is static. It is not moving. So when I'm parked and I turn the wheel, the front of the car literally flexes left and right as the steering wheel is turning.

I cant parse this sentence?

what "flexes"?

 

[GT Elite]

First off, I would note that it is not a good practice to turn the steering wheel a lot when a car is stopped. This causes a lot tread squirm and can wear out the tires rather quickly. It may also cause the tread to chunk tread blocks in extreme cases.

if the front portion of the body is moving side to side relative to the rest of the body, I would suggest checking the front sub-frame bolts to make sure they are tight.

 

[socalvn]

If you had preload on your endlinks instead of zero sitting on the ground this could cause your car to flex and wear out a joint

 

[Volfy]

Maybe using the proper terminology would help. Here are a couple of guidelines:

 

[oddball]

When the car is static. It is not moving. So when I'm parked and I turn the wheel, the front of the car literally flexes left and right as the steering wheel is turning. I just got it up on a lift and it looks like a bad endlink bushing. I don't see how just that could do that though.. I measured my caster at 7 degrees

All of them do that because of the front end geometry. It's actually a good thing - the front end is set up pretty well for performance.

 

[D.J.]

All of them do that because of the front end geometry. It's actually a good thing - the front end is set up pretty well for performance.

I too, am not seeing any issue here.

For the OP, your kia stinger uses dual front lower balljoints - which creates a sort of virtual pivot point....
Perhaps you are unfamiliar?





A long and detailed explanation about the subject of double ball joints!

I'm A Former Tesla Suspension Engineer And I Need To Tell You Why The 'Double Ball Joint' Suspension Is So Incredible - The Autopian

Hello fellow Autopians and welcome to another edition of Ask An Engineer. Today we’re going to discuss the front suspension setup found on the Tesla Model S, BMW 3 Series, Dodge Charger, and an increasing number of sports cars. It’s called the “double pivot” or “double ball-joint” suspension...

www.theautopian.com

 

[socalvn]

I too, am not seeing any issue here.

For the OP, your kia stinger uses dual front lower balljoints - which creates a sort of virtual pivot point....
Perhaps you are unfamiliar?


View attachment 81614


A long and detailed explanation about the subject of double ball joints!

I'm A Former Tesla Suspension Engineer And I Need To Tell You Why The 'Double Ball Joint' Suspension Is So Incredible - The Autopian

Hello fellow Autopians and welcome to another edition of Ask An Engineer. Today we’re going to discuss the front suspension setup found on the Tesla Model S, BMW 3 Series, Dodge Charger, and an increasing number of sports cars. It’s called the “double pivot” or “double ball-joint” suspension...

www.theautopian.com

 

[vipeboy2000]

yes, both our stinger and our bmws, when you turn the steering while stopped, the car will "lift" up on one side as you turn.. suspension geometry causes the tires to tilt "raising" the front and which ever side is turning in more.