birador

iTrader: (10)

couldn't find the one from IS 2nd gen but this one might help.

https://www.clublexus.com/forums/sus...t-popping.html

GiantsFan

iTrader: (9)

Ive heard the same thing - its because we have "floating calipers".

J250

iTrader: (13)

I am having the exact same issue as you.. And great description on the noise because I was debating to post this issue up in CL as well but couldn't find the right descriptions.. However, this happened to me ever since hitting a big pot hole.. Thought it was the CV joint.. but your description sounds identical.. Have you recently hit any major pot holes?

Vroomin350

iTrader: (28)

Damn dude I knew it, yes actually I have and I think I might have a slight bent rim as well, something is causing a vibration around 40mph but that's another topic. I am glad you understand what I mean, truthfully I thought my description sucked lol every one thinks its the pads, when was the last time you replaced yours?

J250

iTrader: (13)

lol, Well since you also hit a major pot hole, I have a feeling it's something way worst than just changing brake pads. The pot hole I hit during summer dented both my front and back wheel. I changed my brake pads 2 months after and the noise was still there..

However, since it's winter up here in Canada, I switched back to my stock 17's and to be honest, either I adapted to the popping noise or the noise is actually starting to disappear.

I did glance at the link birador provided and it might work because it does seem like similar issues.

BTW, the slight dent on your wheel is definitely one of the reason causing the vibration at 40mph.. I was going through the same issue after i dented mine...

A_Grasso

iTrader: (13)

Yeah bro, I'm like 90% sure it's the pads. The sound went away for me once I replaced the pads . Hopefully it will work for you as well!

Stylnhonda

iTrader: (1)

I may have the same issue, kinda. I've noticed if I back into a parking spot, the brakes or the steering wheel or the brake pedel seem to make a odd pop noise at times. I don't think it's each time I reverse. I guess it could be and I just don't notice it all the time. I did not think much of it though. Mine only does it when I reverse and it's not to loud. Sounds almost like air.

My car's a 2011 with 4k miles and no mod's to the suspension/brakes/tires/wheels etc.

Vroomin350

iTrader: (28)

^^ thanks for chiming in guys, definitely this is more than just air, you can hear a metal noise pop. good news for you sir

muggy, did you ever get the wheels straightened back out ?

Vroomin350

iTrader: (28)

someone else experiencing the same problem over in the 2gs forums.. the following is a comment made by someone and the reason I post it is because it is a symptom I also have...

B16da9

iTrader: (7)

Johan it's your brake pads, my car does the same exact thing especially in the early A.M. I also think it's only an issue with 350 owners as my car did not start to do it until I did the 350 brake upgrade.

Vroomin350

iTrader: (28)

I am starting to think the same thing erick, most people said that but its crazy because the noise doesnt sound like it could come from anything in the pads... oh well, looks like new pads coming soon

B16da9

iTrader: (7)

I dont think it's the pads per say but more like the shims.

NewLexus11

iTrader: (1)

Sounds to me sort of like pad shift. I work at a lexus dealer and we get customers coming in alot with concerns about a popping noise when they first apply the brakes when in drive then reverse. If this is what the issue is it isn't anything that is serious as long as you can deal with the shifting noise.

CCJ22

iTrader: (26)

What was the fix Yoan?