What did you do to your Kia Stinger today?

So, does that mean you have the bushing set installed? What impact do you see on camber over the swing and at what caster settings?
To be honest im willing to try anything as i can't get a wheel alignment to last more than two days. The car has a pull to the left that has deemed to be caused by lowering the car.

The back springs have come into question regarding how low they sit. It appears they look to be interferring with the electonics and I've had the full diagnostics done .

Kia recommended going back to stock to fix the issue. Got a call from Eibach today who now have my replacement rear springs sourced from Germany. Apparently these sit 5mm higher than the ones i have. They concluded it was indeed a warranty issue in my case.

It was suggested by members on FB that i try the caster adjustment tool, if this helps so be it. I'll advise of how i go.
 
To be honest im willing to try anything as i can't get a wheel alignment to last more than two days. The car has a pull to the left that has deemed to be caused by lowering the car.

The back springs have come into question regarding how low they sit. It appears they look to be interferring with the electonics and I've had the full diagnostics done .

Kia recommended going back to stock to fix the issue. Got a call from Eibach today who now have my replacement rear springs sourced from Germany. Apparently these sit 5mm higher than the ones i have. They concluded it was indeed a warranty issue in my case.

It was suggested by members on FB that i try the caster adjustment tool, if this helps so be it. I'll advise of how i go.
Ah, good luck.

Looks like we’re comparing apples and orangutans here, so I can’t use your data.

Anyone else install these SuperPro bushings?
 
The back springs have come into question regarding how low they sit. It appears they look to be interferring with the electonics and I've had the full diagnostics done .
What electronics are being interfered with? - The headlight leveling sensor?

Does your car sit lower in the rear Vs the front?
Any pics?
 
What electronics are being interfered with? - The headlight leveling sensor?

Does your car sit lower in the rear Vs the front?
Any pics?
It sits too low at the rear from what i understand the sensors on the rear are confused and are dialling up sports mode suspension setting. I'll see if i can find the diagnostic report from Kia.
 
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Interesting that the dealer would say that.

Our cars do not have "suspension travel sensors"

The is a "body G sensor" - but it doesn't know or care about ride height.

Thousands of others have successfully lowered their cars without this issue!

Was your complaint that the rear suspension is soft? Or that the alignment is off?

Methinks your dealer is confused.

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Of the 5 sensors used for the ECS....

None are "height" - Which is why lowering springs work fine with the electronically controlled suspension (ECS)

3 G sensors and 2 speed sensors

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From interior to exterior to high performance - everything you need for your Stinger awaits you...
There has to be a height sensor, at least for the headlight aiming.
 
Very bloody interesting there being no ride height sensor. The whole thing came about because the car won't hold a wheel alignment. A constant pull to the left ( being the reverse for North America).

So I'm wondering what separates my vehicle from those others that have lowered their cars without issues. I thought all along the lower the car the higher the degree of camber you get and can't adjust.
 
Very bloody interesting there being no ride height sensor. The whole thing came about because the car won't hold a wheel alignment. A constant pull to the left ( being the reverse for North America).

So I'm wondering what separates my vehicle from those others that have lowered their cars without issues. I thought all along the lower the car the higher the degree of camber you get and can't adjust.
How many alignments have you gotten? Seems to me you may have a number of things loose or some bad bushings. Also I find that suspension dyno readout showing a 24% difference in the front rebound to be pretty damn concerning. Wondering if that's just the electronics getting pissy at the suspension dyno though since it's not moving in a normal fashion.

What has the car had serviced on it since new? how many KM on the clock?

I'll tell you one thing, camber is the least of your worries here and isn't even that bad. Your toe, on the other hand is a problem and was way out before, if that keeps happening something is definitely not right.
 
How many alignments have you gotten? Seems to me you may have a number of things loose or some bad bushings. Also I find that suspension dyno readout showing a 24% difference in the front rebound to be pretty damn concerning. Wondering if that's just the electronics getting pissy at the suspension dyno though since it's not moving in a normal fashion.

What has the car had serviced on it since new? how many KM on the clock?

I'll tell you one thing, camber is the least of your worries here and isn't even that bad. Your toe, on the other hand is a problem and was way out before, if that keeps happening something is definitely not right.
I'm not too familiar with this particular suspension dyno, but doesn't the

Sine wave reading seem to depict many bounces on the front (I would call this soft & under damped)
VS almost no bounce at all in the rear (I would call this firm & well damped)

I am not at all familiar with this particular readout, just saying what it looks like to me. Strange.

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From interior to exterior to high performance - everything you need for your Stinger awaits you...
How many alignments have you gotten? Seems to me you may have a number of things loose or some bad bushings. Also I find that suspension dyno readout showing a 24% difference in the front rebound to be pretty damn concerning. Wondering if that's just the electronics getting pissy at the suspension dyno though since it's not moving in a normal fashion.

What has the car had serviced on it since new? how many KM on the clock?

I'll tell you one thing, camber is the least of your worries here and isn't even that bad. Your toe, on the other hand is a problem and was way out before, if that keeps happening something is definitely not right.
Yes the toe is a concern and that is a regular occurence.

40,000km (24,854 miles) in 47 months.
Regularly serviced when due.
Had 3 wheel alignment in a 6 week period. The last 2 a week apart, the specs blew back out again.

As i said previously I'm willing to try anything to rectify the issue. One thing i do remember was the original guy who did the eibach spring install did a bad job. Said he did a wheel alignment but lied. Folks said i had exaggerated rear camber afterwards.

Im just wondering why the suspension experts didn't come up with a solution. As you guys read the report i won't repeat it. Maybe these brand new springs might help?

Something i may not have mentioned is Kia did a steering wheel reset to try and negate the alignment issue. That worked fine for two days before the pull came back. They said the wheel was out by 1 degree.

Kia basically have said its a closed case so long as i have lowering springs on.
 
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Maybe try Ark GT-F springs? the drop isn't as much but maybe that would help. Does seem crazy that they can't determine the real problem. I get Kia not wanting to mess with it anymore. Maybe find somebody who's really into performance cars, etc. and have them look at it. Or maybe put just the stock rear springs back on and rock some serious rake? But yes, this make no sense, I bet the guy doing the install did something wrong or broke something...
 
Yes the toe is a concern and that is a regular occurence.

40,000km (24,854 miles) in 47 months.
Regularly serviced when due.
Had 3 wheel alignment in a 6 week period. The last 2 a week apart, the specs blew back out again.

As i said previously I'm willing to try anything to rectify the issue. One thing i do remember was the original guy who did the eibach spring install did a bad job. Said he did a wheel alignment but lied. Folks said i had exaggerated rear camber afterwards.
I once had a bad pull in my ‘98 Mustang Cobra and I took it to a performance shop for an alignment. Turns out that wasn’t the problem, it was a bad tire. They dismounted the two front tires from the wheels, remounted them on the opposite side, and it pulled the other way.
I got new tires and no more pull.
 
I once had a bad pull in my ‘98 Mustang Cobra and I took it to a performance shop for an alignment. Turns out that wasn’t the problem, it was a bad tire. They dismounted the two front tires from the wheels, remounted them on the opposite side, and it pulled the other way.
I got new tires and no more pull.
Tire pressure variance across an axle will do this, too. Depending on your sensitivity and the nature of the car (weight, suspension stiffness, alignment settings, tire grip, etc), as little as a quarter PSI can have impact. Either axle, though the front is more likely to be felt with less difference. If the car pulls one way on throttle and the other on rundown, the rear axle is off with the lower pressure on the side the car pulls towards under rundown.
 
Yes the toe is a concern and that is a regular occurence.

40,000km (24,854 miles) in 47 months.
Regularly serviced when due.
Had 3 wheel alignment in a 6 week period. The last 2 a week apart, the specs blew back out again.

As i said previously I'm willing to try anything to rectify the issue. One thing i do remember was the original guy who did the eibach spring install did a bad job. Said he did a wheel alignment but lied. Folks said i had exaggerated rear camber afterwards.

Im just wondering why the suspension experts didn't come up with a solution. As you guys read the report i won't repeat it. Maybe these brand new springs might help?

Something i may not have mentioned is Kia did a steering wheel reset to try and negate the alignment issue. That worked fine for two days before the pull came back. They said the wheel was out by 1 degree.

Kia basically have said its a closed case so long as i have lowering springs on.
Springs aren't going to affect the toe. unless there's a drastic ride height difference there's no way in hell the springs are causing the toe to go out several MM.

I assume all the rear arms are stock with eccentrics right? Has anyone marked these eccentrics to make sure they aren't loosening and moving? http://www.kstinger.com/alignment-570.html for details.

Other things to check
  • bushings on all the control arms
  • check for elongated/damaged holes in suspension arm mounting areas or undersized hardware that would allow undesired movment
  • subframe bolts are tight
  • steering rack bolts tight
  • all ball joints and tierod ends tightened correctly and don't have excessive play.
Bottom line is either something is worn out or isn't tightened down enough causing adjustments to change likely in the rear as it only takes 1 loose bolt to throw off a bunch of different perameters with a multilink suspension as there's 4 different arms on each side that locate the rear wheels and they all work in different planes.

Best option is set the alignment and mark every bolt on the suspension arms and see what is moving to cause your issue.

It's either that, or there's somone who's really bored going around changing your alignment while you sleep :ninja:
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
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