I had someone install a set of koni red shocks with eibach prokit springs and it sounds horrible on the rear passenger side. Everytime I go over the smallest bump, it sounds like something is falling off the wheels, like a very intensified rattle. I don't really know much about suspension but something just isn't right about the setup. I took the car to a midas for inspection and they said it looked fine but they noticed the noise and said it was just from the aftermarket parts. Does anyone know what he could have done wrong and what is making the noise, the springs or the shocks?

The noise is so annoying that I ordered some used OEM springs to put on again. I just have to find someone to do it for me cheaply. Anyone out there near Land O Lakes, Florida interested?

 

Did you get an alignment after you installed them?

 

they need to reuse the top mount when installing your aftermarket unit, check to make sure that they also reused the rubber bushing that goes between the spring and the top hat. also with a few installs, the spring isn't seated properly onto the top mount. you'll see a little part of the spring off. you might want to check those areas as well as check all the bolts to make sure they were tightened.

what year accord do you have?

 

No, I thought that the alignment is for the front. The rattling is coming from the rear.

 

you should get an alignment anyway if you haven't done so after the suspension installation.. the change in ride height will throw your front and rear toe off.

 

Sounds like whats happening to my rear passenger side too. I'm still thinking that its a busted shock....but since yours is new it shouldn't be so it might be the rubber mount thing. Maybe someone could explain this once and for all....

 

Could also be a worn out upper control arm bushing. This would make a rattle as well.

 

@Nicklas:

No, nothing is broken!........ Your camber alignment is probably(?) fine and would not cause the problem even it your rear wheels were jacked out over 6 degrees positive...... /------\ , or negative, \--------/, and not hitting your fenders.
Toe?.....fat chance!....not even if you drove down the road with them pointing forward to opposing sides of the road! Loose bolts?.......that is usually caused by too much loco-weed inhaled by the mechanic during the install! (Also, never buy your mechanic a six-pack while he is working on your car!)

The 'worn out upper control arm bushing' was by far the best guess, but then you would be able to tell that to some degree by manual manipulation on your lift.

This is what is happening...... and what can be done to resolve it!......................

The problem - (Clunk, clunk!!!) - The Eibach Pro-Kit springs are 'progressive' (meaning the spring has both a softer winding and harder winding sections in the coils. [Remember when you installed them that some of the coils were smaller and closer together and some were larger in diameter and spaced further apart?]
Therefore, when you hit a very quick, even relatively small bump, it can and will cause a binding within the coils as they try to transition themselves from the soft to hard portion at an very rapid rate. (Hence, the reason for the super tech electronically controlled shocks... self-adjusting about every 30 to 50 milli-seconds).

This problem can occur with almost any tightly wound and/or progressively wound type springs on many different models and types of cars. (Unfortunately accentuated by the progressive coil design and Hondas in general!). Some 'stock' Civics even experience this to some degree - see last paragraph for their factory solution.

Note also that your rear bumper stop should be cut almost in half. Do not remove it! It keeps your shock from self-destructing!

The Solution - Call Eibach @909-256-8300 and as for the 'Technical Department'. Ater you tell them your story .....Then, if they tell you that they don't know of, or have never heard of the problem....get them to (or they will on their own) put a specialist on the phone. Tell him your story again.

They will send you (ABSOLUTELY FREE!!!!) some tubing to fit over the softer portion of the spring. This will help greatly reduce if not almost entirely resolve your problem by reducing the binding and soften the metal to metal contact.....You have to remove the strut/spring assy to perform the operation.

There is a THREAD in ' Basic Honda suspensions - other notes on Eibach in this forum which mentions the tubing as well. Look it up!

Also, some of the newer Honda Civics utilize the same type of resolution for their stock setup!
You could also go to your local dealer and purchase ($$??) a couple of their tubing kits, which are 'split' by the way (No need to remove struts) and install them on your coils.


Good Luck....