car suspension problem. someone helP!

[redears240]

ok well lemme explain the problem.. i wanna see wat is wrong with my car that way i can replace it or send it to get fixed, here goes... Well of course when i am driving my car going a decent speed at least like over 45 mph, well when i hit any kind of bump.. like a medium sized bump or a big one the rear or my car swirves a little bit. i dont like lose control or anything like that but i can feel the rear swirving a little bit and i dont wanna keep on driving on it then one day all of a sudden i lose it, but my thought is that one side of the shocks are worn out and the weight of the car is depending on the springs so when it hits the bump the one side bounces and makes the rear swirve.... but i wanna make sure wat is wrong, if this ever happened to anyone if anybody knows the problem please tell me that way i can get it fixed and not end up killed. lol, thanks!

[InsanityInc]

Longest sentence ever. Replace your shocks. All of them.

[onosqv]

If your shocks are old/oem do what InsanityInc said. Most likely, I'm guessing when you hit a bump at freeway speeds your car will continue to bounce for a while (blown shocks).

If you have something aftermarket, like coilovers that are slammed to the ground - you probably need to get an alignment to fix your bumpsteer issues, maybe a couple new arms to allow more adjustment, and raising the car may help. Of course, this is only if you have coilovers, which it doesn't sound like you have.

[Q45tech]

"get an alignment to fix your bumpsteer issues"

Bumpsteer is result of tie rod angle change with lowering [or raising] static ride height, only fixed by redesign of suspension arm pickup points.... to return to parallel with ground

[onosqv]

Sorry, what I meant to say was -

If you are riding coilovers, and getting bumpsteer. You are probably too low & don't have the other proper suspension components - i.e. tie rod w/ spacers.

So, you need to install those - maybe raise your car a little - then get an alignment because just eyeballing it isn't always good enough.

Again, that's if you have only coilovers and too low.

[redears240]

iight kewl thanks guys.. it prolly is the shocks, b/c i got regular lowering springs...

[naed240sx]

Longest sentence ever. Replace your shocks. All of them.

Wow you are so helpful. This might not even be his problem. You should mention that blown shocks could cause the problem, and that you will know if they are blown if your car bounces for an extended period after going over bumps. Also, all four shocks to do not fail at the same time, so it might not be neccesary for him to replace all of them. Then again, it is possible that the problem is not even related to the shocks.

I just recently bought a new fastback that had 4 completely blown shocks, and it didnt cause this problem. It made for a crappy and bouncy ride, as well as bad handling, but did not cause swerving.

Redears- Please try to make your posts more legible. Afterwards, you should go get an alignment, which is neccesary if you lower your car. If the problem still persists, take it to an expert, and have them figure it out. It is going to be very hard for us to diagnose your problem with so little information and not actually riding along with you.

[redears240]

yeah i understand... yeah my car is not bouncy at all, its just the swirvy action. lol. But thanks for helping, and i will try to make my sentences more legicbale. I like to type fast thats why.

[naed240sx]

Ok, then your shocks are fine. Must be an alignment problem, or something else.

[S14KoukiMonster]

naed240sx-No doubt- I can't stand it when people diagnose or should I say GUESS, without knowing what they're talking about. If you don't know say you don't know, or SUGGEST something. Anytime I advise people (both at work or not) and I'm not sure, I say so; simple as that. Read my posts if you want to see for yourself.I also agree 100% with your last paragraph- good advice for certain people to take.

Help your fellow Nissan brothers/sisters.

[S14KoukiMonster]

My best GUESS (based on info given) check your sway bar end bushings and end links. A broken rear end swaybar link could cause a problem like you described. Like I said though- Best GUESS, I am by no means saying this is your problem.

[onosqv]

iight kewl thanks guys.. it prolly is the shocks, b/c i got regular lowering springs...

Must be an alignment problem, or something else.

Based on info so far... It might be an alignment problem - hopefully, cuz swaybar end links are EXPENSIVE (even on ebay), hahaha.

From tire rack in regards to negative camber(http://www.tirerack.com/tires/tiretech/ ... p?techid=4)

Each tire develops an equal and offsetting "camber thrust" force (the same principle that causes a motorcycle to turn when it leans) even when the vehicle is driven straight ahead. If the vehicle encounters a bump that only causes one tire to lose some of its grip, the other tire's negative camber will push the vehicle in the direction of the tire that lost grip. The vehicle may feel more "nervous" and become more susceptible to tramlining.

I'm guessing you put the lowering springs on w/o an alignment. If that messed up your alignment enough, in combination w/ worn out oem bushings, which I'm also guessing you didn't replace yet, your car can act "crazy" over bumps.

What I would do first is go to an alignment shop and ask them for a free alignment check - you don't have to get an alignment, just get a spec sheet of what your alignment is.

Also, check your bushings & swaybar links like KoukiMonster said .

That will cost you nothing & help everyone here figure out what the problem is.

Lastly, whenever you hit a bump, can you tell which corner of the car it is coming from?

For example, for my car when it was on agx + sportlines, on certain bumps at an angle - i.e. this one freeway on ramp I always take after work, when I hit it, the front is fine, as soon as the back hits that bump, the tail in squirrels around almost like wheel hop/fishtail - ended up tracing most of that problem to worn out subframe bushings....

[naed240sx]

Broke, we need more pics of your project! Get to it! hup!

[redears240]

alright kewl thanks for your help

[Red coupe]

btw you never did mention...did this start after lowering the car, and did you get an alignment after the springs were installed?

My car had a blown left rear shock and while it bounced and could cause some feeling of instibility it did not make the rear end want to dart to one side or the other expecialy in a straight line...