Ginge !

iTrader: (1)

since ftting mine all i get is knocking noises all the time,,,, aint sure if its ment to be there or not but its always there !!!

i also fitted the whiteline roll bars at the same time to so not sure if thats also a reason or if the coilovers are just foobar'd

anyone else have this happen ?

James Neill

iTrader: (1)

I have the BC coilovers sold via the many group buys. Really happy with them. But yes, the rears do knock. Only ever hear it when driving v. slowly over bumpy ground. Sometimes when the car is jacked up and then put back down they calm down for a while.

Ginge !

iTrader: (1)

great,,,, so knocking is normal then,,, why did i go for coilovers,,,, all they do is knock when driving slow and they are rock hard to drive around town with too

they better be better on track !!!!

sKunk

Could be the top mounts that are busted, did you replace them as well?

SPEN555

I have AST's and no knocking from them in 3 yrars i have had them.

71/200

iTrader: (2)

I have the BC,s on mine with NO knocking at all!! They are also a better ride than the standard STI stuff on full soft settings.

When you fitted them did you check the Top Mounts bolts were tight when the car was back on the floor with the wheels on?

A mate of mine failed to do this and that was the cause of his knocking!

M444GY

iTrader: (72)

my avos on my old car knocked like a goodn . i fixed it in the end by doin a secret mod/bodge lol

JDM_Stig

iTrader: (3)

My BC coil overs knock when unloaded too, I had the pillowball top mounts if it makes a difference, Its passed the mot but is annoying, didnt bother contacting Bren after all the hassle I had to get them.

davedipster

I have BC's on my 03sti. Yes when hitting a badly sunken drain I did hear a knock from the back. Daily knocks no, but I do hear more 'noises' from the suspension/drivetrain in general. Stuff I could hear before but now much louder proabably due to having solid top mounts now.
Hope that helps, but as said before check the nut on the top of the strut to see if it is still tight.

dipster.

jameswrx

iTrader: (4)

I've hated every car I've driven with coilovers, they may well be good on track but on the road we need all the compliance we can get (especially with the state of our roads)

bushiwarrior

recently fitted exe-tc's with no knocking

mirrorman

iTrader: (2)

OH REALLY!!!

please explain as they now knock again! lol

Tenby

iTrader: (1)

surely they should not knock unless somthing is wrong???

stiscooby

I, on the odd occasion, hear a "twang" from them springs at the front when cornering (as the weight shifts from side to side).

I'm running Tein SS

I had a knock at one point on the rear and found it was my drop links, these are solid whiteline items, found the bolt was not quite tight enough!

millzy555

iTrader: (2)

Think you will find its the top mounts or the droplinks

scooby165

iTrader: (1)

I had exe-tc fast road kit fitted with exe-tc top mounts last month and the rear offside is knocking quite alot its doing my head in because i dont know whats wrong if anything???

Greenflash

My Tein's knock like **** all the time!! I feel for you mate, it's annoying as hell!

lunar tick

iTrader: (2)

Ditto

McWRX

Tein basics here and no knocking what so ever!

New_scooby_04

iTrader: (4)

Tein SS. No knocking at all.

If all is well they shouldn't knock.

As suggested above, suggest you look at your drop links and top mounts.

Ns04

FX02

iTrader: (5)

Check the dampers haven't lost any oil, that can create knocking. I speak from experience.

Another thing you could try is stripping the unit and pressing the piston in by hand. If it goes in easily, stays in and takes minutes to come back out then it's probably broken, or got no oil in and this will cause constant knocking.

davedipster

Check your hub nuts m8.

Ginge !

iTrader: (1)

i think its the top mount knocking checking it again,,,,,,,, dam