kame_sanjo

iTrader: (1)

Hey, dealership said my left front lower control arm bushing is leaking. How much does it cost to fix and what would casue this?

HamstersG

iTrader: (5)

Going to need one of the techs to post up as I don't recall a sealed bushing in the lower control arm that would "leak" when I was working on the upper control arms. But if there is something that is failing, then why wouldn't they fix it for free under warranty?

kame_sanjo

iTrader: (1)

They said it wasn't something that needed to be fixed right away. I think I read some cars have fluid bushings for added noise reduction.

Presto

Bumping this thread, I have a click sound going over humps at slow speeds. Could this be caused by worn lower control arm bushings?

I am lowered and have the spc front camber kit. Could the click sound be the ball joint on camber kit?

Black Betty

iTrader: (60)

I don't know if that is the cause of your sound, but they are greasable.

jujubii

iTrader: (5)

op, i believe have the same issue.

my tires are feathering (front driver out and passenger inner. the tread block was going high-to-low in the direction of rotation) and i brought it to west end to have my suspension checked out.
my toe and camber was spot on. my issue camber from the bushings 'giving' too much (play) and essentially 'dragging' my tires when i turned. you should check your tires for abnormal wear as well. it was a simple fix for me... because i have asymmetrial & non-directional tires, swapping the front tire and wheel would essentially reverse the wear. for long term considerations, im switching out to spherical! gunna get the spl stuff.

they bushings ARE liquid filled, though. i would suggest either switching out to OEM bushings or spherical bearings (you're going to trade some comfort for performance though). the polyurethane bushings are VERY bad for a replacement in this specific area, rubber/liquid-filled or spherical is where you want to be at. It's because this specific part has 2 axis's of rotation. poly bushings are hard and good for 1 axis while restricts the other (hence why theyre commonly used for swaybars). rubber/liquid works by allowing deformation. spherical.. well, it's spherical! cost-wise, the bushing itself is reasonable(if the dealer sells replacements... im not too sure) however, the labor is going to hit you pretty hard in the go-nads. btw, this kinda issue was very common in the z33 scene, or so i;m told.
Thats if i'm thinking about the same bushing youre having issues with though.... the lower arm assembly is kinda funky and isnt the same as the g35

OPPS, didnt realize op's post was 3+years old DMGI, doesnt matter good info
Presto, is the sound a squishy sound or a a specific click? i'll say if it's squishy, it's probably the hot weather messsing with the bushings a little, wont matter unless it's leaking. clicking, not sure.

Presto

if its liquid filled then my passenger side is definitely leaking as i can see some kind of liquid/grease around them like as if they leaked out.

its a click, kind of click you would get if you have a loose bolt on suspension for example but i have checked all bolts are torqued right.

jujubii

iTrader: (5)

as you may or may not know, the lower control arm (called the tranverse link by the FSM) is actually more of a combined/unit (compared to the g35s). it has 3 ends with a bushing on each. one end has is connnected to the lower end of the shock, the other end is the the what many parts site list as the front lower "inner" arm bushing (which is known to have funky issues), and the "new" end (which didnt exist on the g35). this "new" end has quite a large bushing and is connect to the suspension member i believe. i am pretty SURE is liquid filled (not sure about the other 3... it may just be rubber).
could you please take a picture of the supposed leaking side?

I currently have issues with the "new" side and since there isnt an aftermarket solution available for it im SOL.

as for the clicks i'm not too sure. update me know your investigation proves successful!

Presto

Thanks for the info jujubii

Currently at dealership, though knowing the morons working there as soon as they see my coilovers and camber kit they will blame it on that and will not do any further investigation.
Will have to figure out source of click on my own.

eVitO

iTrader: (8)

I believe only engine mount bushings and the diff bushing have fluid. All our other bushings aren't fluid filled, just greased up.

And Presto, that's exactly why I haven't gone to the dealership once. I have my own mechanic and I change my own oil and what not.

JSolo

iTrader: (14)

What bushings are greaseable? I don't recall seeing zerk fittings on the OE parts.

ashmostro

iTrader: (3)

You mentioned your car is "lowered"... how? Coilovers? If so, it could be a loose upper mount, either a pillowball (if you have one), or another part in the upper mount may be excessively worn, assuming you checked torque on all the bolts up there too.

Presto

It's not the bushing.
Have to check the coilovers and camber kits again.
What are signs of blown coilover? I have the tanabe coils and I did read some threads a while back abou them blowing out.

ashmostro

iTrader: (3)

Look for leaking oil out of the coils.
How did you determine it's not a bushing?

jujubii

iTrader: (5)

clunking thumping sounds
its refusal to bounce