Suspensions Knocking Noise

[R33_Smash_Deamon]

Hey Guys

I just installed some 2nd hand coilovers on my r33 gtst and there seems to be a knocking noise coming from the rear passenger side.

When i bump the car (ie jump in the boot) theres no noise, but when i rock the car side to side it seems to make a knocking noise.

I got underneath the car while we rocked it side to side, and the noise seems to be coming from something around the hicas system.

And when i held onto the hicas system it felt like something was knocking/shocking it.

Im abit confussed about whats happening as im sure nothing was hitting anything and postive it didnt make this noise before.

Can anyone help me with this?

Cheers

[(B1) MR_fanny]

it might be the worn pillow top. mine knocks on the right rear cause its worn.

[R33_Smash_Deamon]

Hey

i just got the car off the ground, and shaked the rear wheels (toe in and out), it makes the usual noise, but it also moves the other rear wheel. I thought the HICAS system would be stiffer then this. also when i do it to the other side it does the same thing, moves the other wheel and makes a noise. DOes this mean my HICAS is stuffed? or something.

cheers

[R33_Smash_Deamon]

come on guys surely someone has heard this kinda noise before

[alex1991s]

Yeah happened to me too, got it checked at my mechanic and he said its normal for aftermarket springs, said the spring was moving side to side or something, cant remember.

[ISC-Performance]

I would be taking the car to a suspension specialist and have them take a proper look at the hicas, it definetly shouldnt have that much movement.

Thanks,Ryan

[DECIM8]

sound is pretty typical because not youve got alot of fast pace rebound and it shakes things up. the hicas system moving like that is an issue it should not be doing that, perhaps get a lockbar for the system - its crap anyway.

Its ment to engage at speed and lock when neutral so something deff wrong

[GTS4WD]

Is your HICAS light on?

Cheak you power steering fluid level.

Bleed the HICAS system and cheak for bubles.

Slap in a HICAS lock bar

Cheak all mounting points of the coilover..

Cheak to see everything is screwed in nice nd tight - did you double cheak after installing the coilovers?

thats my 2c of your options.

[R33_Smash_Deamon]

Is your HICAS light on?

Cheak you power steering fluid level.

Bleed the HICAS system and cheak for bubles.

Slap in a HICAS lock bar

Cheak all mounting points of the coilover..

Cheak to see everything is screwed in nice nd tight - did you double cheak after installing the coilovers?

thats my 2c of your options.

Hey

Nah my HIcas light isnt on

and i thought the r33's didnt use a hydraulic HICAS system, it was electric, correct me if im wrong.

so if its electric, the power steer and bubbles in HICAS system wont fix

i double checked all mounting points on install!, might put a lock bar in and see what happens

cheeers

[Trav33]

When you say your hicas is loose, is that with the car running, or engine off?

[tm_r33]

Hey

Nah my HIcas light isnt on

and i thought the r33's didnt use a hydraulic HICAS system, it was electric, correct me if im wrong.

so if its electric, the power steer and bubbles in HICAS system wont fix

i double checked all mounting points on install!, might put a lock bar in and see what happens

cheeers

yep 33 is electric

[R33_Smash_Deamon]

When you say your hicas is loose, is that with the car running, or engine off?

I have only ever tried moving it off the ground when the car was off.

But it makes the same sound when the wheels are on the ground and i rock the car side to side.

[joeyjoejoejuniorshabadoo]

just lock it and see what happens... $50 and i'm happier...

[R33_Smash_Deamon]

just lock it and see what happens... $50 and i'm happier...

Yeah locked fixed it

cheers

[simpletool]

I seem to have this same issue. I can hear the knocking when I drive - always from the left rear side. Have bilsteins in there. The play is coming form inside the HICAS unit - not the bush/ball joint at the wheel end of the rod. So I guess this is the same thing. Very audible when going over small bumps/ripples, sounds like it's falling apart.

Is there any bushes or ball joint in the HICAS that could be broken?