Vibration when braking need some help!

1cleans13 · 12-31-2012, 11:50 AM

Hey guys, I recently (5 days ago) lowered my car on Swift springs and installed H & R 15mm spacers... I havent messed with the alignment yet. I noticed yesterday while driving the car on the highway at about 90 mph I pressed the brakes to slow down and my steering wheel started shaking. I checked the lug nuts when I got home and at least by hand they feel tight enough. However I noticed the 2 rear wheel locks are loose and broken (meaning I could see the stud)
Any Idea as to what the hell is happening here... My first thought is someone tried to steal the wheels but my car sleeps in my garage and I dont take it anywhere but to work on a secure lot.

1st · 12-31-2012, 12:29 PM

Sounds like incorrect wheel locks that were put on. Broke due to incorrect application. Where you get the locks? Are you still on oem wheel? Check this out http://www.the370z.com/images/servic.../NTB09-024.pdf

SouthArk370Z · 12-31-2012, 01:03 PM

I had a similar problem recently, but mine was a slight vibration/steering wheel shake above about 45 MPH. Turned out that there was some mud in the pad groove that had caused uneven wear of the rotor.
In your case, the first thing I'd check is lug nuts. Checking by hand is worthless unless they are about to fall off. A bad rotor would be my next suspect. And then spacer alignment.

1cleans13 · 12-31-2012, 05:00 PM

Ok, I checked the lug nuts and they needed some adjustment. I torqued all if them and changed the 2 locks for new ones(OEM). I drove it on the highway... Took it to 110 and still the same problem... I guess I need to check the spacers then

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1cleans13 · 01-01-2013, 07:03 PM

bump!!

roy'sz · 01-01-2013, 07:21 PM

Is it only when braking?

homeryansta · 01-01-2013, 07:23 PM

If this only happens when braking then warped rotors.

roy'sz · 01-01-2013, 07:24 PM

I agree! If its constant then the spacers are not flush on the hubs....thats my opinion.

DEpointfive0 · 01-01-2013, 08:01 PM

Quote:

Originally Posted by homeryansta

If this only happens when braking then warped rotors.

If it's when braking, it's warped rotors.

Mods, please close

1cleans13 · 01-02-2013, 08:37 AM

LOL.. Its only when braking but the car only has 6700 miles. Can the rotors be warped already?

SouthArk370Z · 01-02-2013, 08:44 AM

Quote:

Originally Posted by 1cleans13

LOL.. Its only when braking but the car only has 6700 miles. Can the rotors be warped already?

It's possible. Not usually so soon, but all your symptoms indicate a "warped" rotor. If it's bad enough, you'll be able to eyeball it. Pull the wheel, remove caliper, remove rotor and inspect. Look for areas where the face of the rotor is is rougher and/or has a different "sheen". When we pulled my rotor a few weeks ago, the difference was very obvious.

DEpointfive0 · 01-02-2013, 08:48 AM

Quote:

Originally Posted by 1cleans13

LOL.. Its only when braking but the car only has 6700 miles. Can the rotors be warped already?

Yes, my mom can warp rotors in fúcking 50 miles, lol

DEpointfive0 · 01-02-2013, 09:18 AM

Oh, hey, OP, the rotors are covered under warranty, TECHNICALLY, somehow they are considered a non consumeable item on the car, never knew that

So go to the dealershít and get a new set of rotors

1cleans13 · 01-02-2013, 10:02 AM

Thanks guys.. I'll check that out

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Rusty · 01-02-2013, 10:10 AM

You could also be getting a brake pad deposit on the rotors. It feels like a warpped rotor from when it happens. From what I have been reading on here. The stock pads are noted for doing this.

12-31-2012, 11:50 AM	#1 (permalink)
1cleans13 Base Member Join Date: Feb 2011 Location: Flow-Ridah Posts: 182 Drives: 11 NISMO/15 GX460 Rep Power: 2050	Vibration when braking need some help! Hey guys, I recently (5 days ago) lowered my car on Swift springs and installed H & R 15mm spacers... I havent messed with the alignment yet. I noticed yesterday while driving the car on the highway at about 90 mph I pressed the brakes to slow down and my steering wheel started shaking. I checked the lug nuts when I got home and at least by hand they feel tight enough. However I noticed the 2 rear wheel locks are loose and broken (meaning I could see the stud) Any Idea as to what the hell is happening here... My first thought is someone tried to steal the wheels but my car sleeps in my garage and I dont take it anywhere but to work on a secure lot. __________________ _____________________________________________ *2011 NISMO 370Z (PW)* 50% Llumar tint- LED bulbs everywhere- JDM emblem- Phillips LED DRL- 6K HID- NISMO TI shift knob - SWIFT SPEC R - H&R spacers

12-31-2012, 12:29 PM	#2 (permalink)
1st A True Z Fanatic Join Date: Jul 2012 Location: I 80 Biz U.S. 50 Posts: 1,710 Drives: Platinum Z Rep Power: 1616	Sounds like incorrect wheel locks that were put on. Broke due to incorrect application. Where you get the locks? Are you still on oem wheel? Check this out http://www.the370z.com/images/servic.../NTB09-024.pdf Last edited by 1st; 12-31-2012 at 12:35 PM.

12-31-2012, 01:03 PM	#3 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	I had a similar problem recently, but mine was a slight vibration/steering wheel shake above about 45 MPH. Turned out that there was some mud in the pad groove that had caused uneven wear of the rotor. In your case, the first thing I'd check is lug nuts. Checking by hand is worthless unless they are about to fall off. A bad rotor would be my next suspect. And then spacer alignment. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

12-31-2012, 05:00 PM	#4 (permalink)
1cleans13 Base Member Join Date: Feb 2011 Location: Flow-Ridah Posts: 182 Drives: 11 NISMO/15 GX460 Rep Power: 2050	Ok, I checked the lug nuts and they needed some adjustment. I torqued all if them and changed the 2 locks for new ones(OEM). I drove it on the highway... Took it to 110 and still the same problem... I guess I need to check the spacers then Sent from my iPhone using Tapatalk __________________ _____________________________________________ *2011 NISMO 370Z (PW)* 50% Llumar tint- LED bulbs everywhere- JDM emblem- Phillips LED DRL- 6K HID- NISMO TI shift knob - SWIFT SPEC R - H&R spacers

01-01-2013, 07:03 PM	#5 (permalink)
1cleans13 Base Member Join Date: Feb 2011 Location: Flow-Ridah Posts: 182 Drives: 11 NISMO/15 GX460 Rep Power: 2050	bump!! __________________ _____________________________________________ *2011 NISMO 370Z (PW)* 50% Llumar tint- LED bulbs everywhere- JDM emblem- Phillips LED DRL- 6K HID- NISMO TI shift knob - SWIFT SPEC R - H&R spacers

01-01-2013, 07:21 PM	#6 (permalink)
roy'sz A True Z Fanatic Join Date: Aug 2011 Location: palmdale, ca Posts: 1,299 Drives: 2010 nissan 370z Rep Power: 16	Is it only when braking?

01-01-2013, 07:23 PM	#7 (permalink)
homeryansta Enthusiast Member Join Date: Apr 2011 Location: Brooklyn Park, MN Posts: 424 Drives: 04 se-r spec v, 370z Rep Power: 14	If this only happens when braking then warped rotors. DEpointfive0 likes this. __________________

01-01-2013, 07:24 PM	#8 (permalink)
roy'sz A True Z Fanatic Join Date: Aug 2011 Location: palmdale, ca Posts: 1,299 Drives: 2010 nissan 370z Rep Power: 16	I agree! If its constant then the spacers are not flush on the hubs....thats my opinion.

01-02-2013, 08:37 AM	#10 (permalink)
1cleans13 Base Member Join Date: Feb 2011 Location: Flow-Ridah Posts: 182 Drives: 11 NISMO/15 GX460 Rep Power: 2050	LOL.. Its only when braking but the car only has 6700 miles. Can the rotors be warped already? DEpointfive0 likes this. __________________ _____________________________________________ *2011 NISMO 370Z (PW)* 50% Llumar tint- LED bulbs everywhere- JDM emblem- Phillips LED DRL- 6K HID- NISMO TI shift knob - SWIFT SPEC R - H&R spacers

01-02-2013, 09:18 AM	#13 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17151	Oh, hey, OP, the rotors are covered under warranty, TECHNICALLY, somehow they are considered a non consumeable item on the car, never knew that So go to the dealershít and get a new set of rotors

01-02-2013, 10:02 AM	#14 (permalink)
1cleans13 Base Member Join Date: Feb 2011 Location: Flow-Ridah Posts: 182 Drives: 11 NISMO/15 GX460 Rep Power: 2050	Thanks guys.. I'll check that out Sent from my iPhone using Tapatalk __________________ _____________________________________________ *2011 NISMO 370Z (PW)* 50% Llumar tint- LED bulbs everywhere- JDM emblem- Phillips LED DRL- 6K HID- NISMO TI shift knob - SWIFT SPEC R - H&R spacers

01-02-2013, 10:10 AM	#15 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,217 Drives: 2011 Nismo GM 6M Rep Power: 2684438	You could also be getting a brake pad deposit on the rotors. It feels like a warpped rotor from when it happens. From what I have been reading on here. The stock pads are noted for doing this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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