so i just installed my AGX/GC this past saturday. installed with my steelies on and just put my good wheels back on...they are only 15's. so i took a long highway ride and heard a few times(4-5) really loud bangs...different size bumps on all occasions. so today i was pulling out of work and it did it again...going over a 1/4 inch curb cut at like 2 mph?!?!? i have pretty much narrowed it down to the driver side rear...this happen to anyone?

 

my car used to do that when the spring left the perch, and came back down. how far did you drop your car?

 

its hard to say exactly...im thinking about 2 inches. by no means is it slammed...how did you remedy your 'noise'?

 

control arm knocking the top of your fender ceiling?

 

wouldn't the car need to be ridiculously low for these type of things to happen?

 

any more ideas?

 

mine was about 2.5" I raised it up to about 2.0" drop....it happened less, but still happened on really big bumps. the springs are so short, there isn't much you can do. if you jack up your car....and let the wheel hang down...can the spring move freely, or is it tight against the perches?

also recheck all the stupid stuff, like all washers, and bolts are fitted correctly. bumpstops are halved, ect...

 

Mine did that because i was missing the castle nut on the passenger side.. might want to check that.. Just a though.

 

The spring is becoming unseated at either the spring base, or tophat.
Then the spring bangs back into place when the car settles.
Raise the car, or find helper, or tender (5lb rate basically) springs to fill the gap.
Or zip tie the spring to the top hat.
Do you have a rear bar?

 

no rear bars...would that help? we had forgotten one washer but it was up front driver side...we took it off and put it where it was supposed to be. they are still settling so i might raise it up a bit. also...where can i get helper springs? i see them on full coilover kits all the time.

 

I had my AGX's installed and it too makes a thumping moise in the rear...at first it was much louder and noticeable, now it seems to have faded away a little but it does seem louder every now and then...

My springs makes a "boing" sound every now and then too! hahaha checked all the hardware and everything seems good. btw, I have H&R OE's

 

well i guess i can just hope mine will fade as well. one thing i did notice on that side...noticably bad camber? i need to get an alignment done anyway...oh well.

 

did you install the strut correctly? make sure it aint loose under the hood, i know it sounds stupid, but i've seen people make this mistake.

 

Ive been having this same problem! Plus when i turn my wheel it starts making twngs and squeeks like crazy! Ideas?

 

haven't heard the springs themselves(twanging) making much noise...my last car did that like crazy though. its really the banging thats bothering me. they are all very tight...done with air tools didn't hear it this morning at all but i just want to narrow it down in case i hear it again...it sounds brutal when it does it...like something is definitely getting ruined

 

Ya mine is just abunch of squeeks and **** its really annoying and its going to be a pain in the *** becuase i am trying to sell the car and when someone is test driving it that doesnt really help the sell factor! haha Which is why i want ot fix this **** hella bad

 

noises suck right...sometimes when i sit at idle like at a light....my muffler heat shield rattles and i feel like everyone can hear it?!?!?