Car shaking badly after CO installation!

[ebell]

Hi all, I just finished H&R CO installation. I did with a few of my friends. It was pretty intense with a few problems.

After the installation, whenever I go over a small bump on a road/highway, the car shakes pretty intensely left and right. It is more noticible in high speeds.

I initially hoped it'd be b/c of low tire pressure (changed my tires as well), but they are around 33-35psi.

I installed Ingalls Camber kit with it, by the time I was working on it, I couldn't figure out which side goes to wheel disc and to inner body of the car. I might've not tightend ingalls enough?

Ne idea would be helpful. The 20 min drive was pretty scary.
What can contribute to the shaking?

Will my wheels come flying off? :shock:
HELP~

EDIT: I checked the height of the fenders from the ground.

FL: 25 "
FR: 25 "
RL: 25.5 "
RR: 26"

So I adjusted them to 25" front 26" rear. I thought I checked them right after :donno: Maybe the springs settled?

How much lower are 25" 26" from stock? I wanted to go about 1.7 2.0 lower than stock.

I hope this fixes the problem. :mecry:

[dinoc]

Not sure how could I help you with this ?
Did you install the camber kit / coil over kit correctly ?
Did you do your alignment after installing this ?

[bluexcrush]

bring it in to a mechanic and have them check it out, this stuff is touchy man... u should really get a mechanic to install it for u.

[pcdawg]

ZYou did the install yourself at your home?

If u didnt get the car aligned then that is the problem. Shuddering of the car means the car is out of alignment.

[bluexcrush]

it shouldn't be that bad, when my mechanic installed it for me without alignment, it didn't shudder at high speeds...

[pcdawg]

But the fact is that whenhe was installing his camber kit he didnt know whether they were on properly or not so i presume they were not adjusted thus alignment is of spec.

[wlctl]

did u get the wheels balanced when u got new tires?

[chuson]

I assume your H&R coilover is brand new???

Either way, since the supsension is on, drive to one of your hook-up mechanic, and ask them if they can do height adjustment for you (pretend you don't know how to install). It's about $15 or less per corner depending on how close you are w/ the mechanic. They will fix the problem for you.

[ebell]

Update:

I don't understand how ride height played a big factor in the shuddering.
However, after the height adjustment (had to stay up till 4 AM after beer w/ friends etc lol), it's pretty much gone.

Then this morning, I heard some metal sound coming from rear right side. When I checked it out, I found out the stabilizer link was loose. That side was the last one I worked on and prolly wanted to finish quick and forgot about it. :(

Now, the ride is very ... exciting. It feels like I am attached to the road and very little body role/lunge. Ride is not as harsh as I thought and rather it's v/ smooth. I forgot to make a note of the stock ride height, hence, I don't know how much I lowered. I am guessing it's around 1.5-2" all around.

I'd definitely DIY this one even if I can go back in time.

As for the camber kit, I did install them at the right places, but was not sure what those silver/black nuts were indicating (which side goes to the disc). I don't think it's an issue at all.
I am getting alignment tomorrow morning.

[ebell]

Not sure how could I help you with this ?
Did you install the camber kit / coil over kit correctly ?
Did you do your alignment after installing this ?
I think so. No weird noise from the CO or no part loose from the CO.

bring it in to a mechanic and have them check it out, this stuff is touchy man... u should really get a mechanic to install it for u.
If this continues after tightening the stabilizer link, I'll get a mechanic to have a look. :) I researched quite a bit on many DIY CO installation and also took extreme care in it (except for the last bit lol), and I dno't regret the DIY (yet)

ZYou did the install yourself at your home?

If u didnt get the car aligned then that is the problem. Shuddering of the car means the car is out of alignment.
I wasn't anal about getting the camber arms to be the exactly same (OEM vs. stock) but they were adjusted

did u get the wheels balanced when u got new tires?
they are OEM tires from last summer :)

I assume your H&R coilover is brand new???

Either way, since the supsension is on, drive to one of your hook-up mechanic, and ask them if they can do height adjustment for you (pretend you don't know how to install). It's about $15 or less per corner depending on how close you are w/ the mechanic. They will fix the problem for you. Yup, after getting an alignment/tightening thhe stabilizer link, I'll see a mechanic if any problem still occurs.

[afici0nad0]

nice.

did you take pics during your install?

[ebell]

Actually the "photographer" (my other friend) wasn't able to come so pix from the process was not taken. However, if you want, I can take some pix today when I take off my wheels, and help you a little if you need. I feel like I can do the install in 3 hrs or so now, unless there are lots of rusted out nuts/bolts. Let me know if u have ne questions.

What does stabilizer link do neway?

What is the stock length between the top of the wheel to the fenders?
I am curious to know how much I lowered.