Suspension problem!!!

ONLY for ADVANCED technical discussion about the 240sx!
bearsfan00
Posts: 31
Joined: Mon Nov 02, 2009 9:16 pm
Car: 1991 240sx

Post

I bought Eibach Sportline lowering springs and KYB struts on all for corners but for sum reason in the rear it feels like the rear end is going one way and and the body the other every time i hit a bump its somewhat of a loud thump. I replaced the bushings and got new strut mounts. I took off the shocks and the springs they are still good. What can it be? And i know i put it back right because there is no way anybody can put on wrong. Anybody with usefull info?


Florida240sx
Posts: 11114
Joined: Thu Jul 01, 2004 7:17 am
Car: 1993 Nissan 240SX Hatch 5spd
2012 Nissan Altima S coupe 2.5
Location: DeLand FL

Post

Is it a thump in just one rear side or both? Are the springs set correctly? the little groove springs may rotate if not, but should of happened within first time of driving. So are all the bolts tight? Can you take a pic.
There isn't much assembly here. 2 lower mount bolt and 3 upper then 1 bolt for the shock. Maybe brake related? Calipers on tight or is your wheel loose? Running spacers?
Something you unhooked is not back right.

How bad is the thump? I have that set-up n ym car and it was nice and stiff and always wanted to kick out and slide, but cruising it was perfectly fine and at moderate speeds

User avatar
Ender_Zero
Posts: 620
Joined: Sat May 01, 2004 9:56 pm
Car: '03 Base Z, '91 S13 Coupe

Post

If I hear a thump or a squeak in my suspension, I usually have a few friends bounce up and down on my bumper and get near/under (if theres room) the car to watch the suspension in action. I usually can see/hear where the general area of the noise is coming from and diagnose from there.

User avatar
comatoseculture
Posts: 196
Joined: Sun Oct 19, 2008 6:19 am
Car: 1990 240SX coupe. Currently running on Megasquirt.

Post

I like the idea ender zero suggested. I'm thinking of the swaybar endlinks. Are they both intact? Any visual cues for any differences one side to the other?

bearsfan00
Posts: 31
Joined: Mon Nov 02, 2009 9:16 pm
Car: 1991 240sx

Post

I cantake pictures of it but idk how to upload them to the website. Do u know how?

User avatar
comatoseculture
Posts: 196
Joined: Sun Oct 19, 2008 6:19 am
Car: 1990 240SX coupe. Currently running on Megasquirt.

Post

I believe easiest way is uploading to a site like photobucket. They should have preset buttons in which you click once, then click in the text box to copy/paste the command for you. Been a min since I posted a pic

bearsfan00
Posts: 31
Joined: Mon Nov 02, 2009 9:16 pm
Car: 1991 240sx

Post

OK thanks I'll be sure to take pictures today. Im gonna be taking the shocks out and swapping them out for new ones.

User avatar
comatoseculture
Posts: 196
Joined: Sun Oct 19, 2008 6:19 am
Car: 1990 240SX coupe. Currently running on Megasquirt.

Post

Wait, didn't you just replace them?

Klits562
Posts: 722
Joined: Fri May 15, 2009 8:36 am
Car: white s13 coupe
Contact:

Post

IIRC wont worn subframe bushings do the same thing? Like with the rear end feeling loose or wobbly and then the loud clunk when you hit bumps

User avatar
comatoseculture
Posts: 196
Joined: Sun Oct 19, 2008 6:19 am
Car: 1990 240SX coupe. Currently running on Megasquirt.

Post

Good point. I agree that's another thing to consider.

User avatar
dgms240
Posts: 322
Joined: Sun Jan 28, 2007 12:31 pm
Car: '90 s13 hatch ka24det
Location: Atlanta, GA
Contact:

Post

did you have an alignment done after swapping out the suspension?


Return to “240SX Technical Forum”