rstreidl

I replaced the caster arms (lower control arm #2) on my GS4, took it for a test drive and its making a resonating humming noise on the right side when I get up to about 35 mph, but if I hit the brakes it stops....any ideas guys?? I can't see anything out of whack with the brakes. I did have to do some jostling to get the bolts into the LCA. Any suggestions would be appreciated!

99 GS3

iTrader: (14)

U sure it's not humming/roaring from the tires, you really should get an alignment after replacing the caster arms. Especially if they bushings were pretty far gone, your alignment could be drastically affected.

rstreidl

I'm pretty sure it's a mechanical metallic noise, not a tire noise. I'm probably going to take it to a shop to get it checked and get an alignment.

exodus_2

iTrader: (15)

most of the time humming/roaring noise is comming from your tire or bearing. if you did not have that problem before and you just replaced caster arms????? so you might had your alignment off before and while you drove the car that way it will make your tire to wear out all weird and cause that noise when everything is strightened...
before you check your alignment swap the wheel left and right and see if that noise moves to other side then it's for sure that noise is comming from the tire.
if not might wanna check the alignment and your bearing as well.

rstreidl

OK I finally had time to give this another look...turns out the thin metallic shield that fits around the wheel assembly had gotten bent and was rubbing on the rotor. Bent it back, problem solved!

sakataj

iTrader: (182)

that would be the brake dust shield.......

GS4_Fiend

iTrader: (22)

that should make a grind noise not humming.

sakataj

iTrader: (182)

Yeah your right john, i didnt even think about that

rstreidl

Well it was a hummming/singing sound, hard to describe....glad it's fixed though. I'm sooooo thrilled though that replacing the caster arms has gotten rid of my CLUNKS!! The bushings were badly cracked on both sides. Thanks to the good info on here, PROBLEM SOLVED!~