Recent Topics
Tungsten Ravenol
by V10 - 02/20/20 01:37 AM
Can an SSD make this much difference?
by 14Accent - 02/20/20 01:14 AM
The Big Oil Change - Sinclair Oil 1960's
by StevieC - 02/19/20 10:47 PM
A new topper for my truck
by HM12460 - 02/19/20 10:12 PM
AAP/Carquest platinum pads/rotors
by parshisa - 02/19/20 10:03 PM
Apple watch - high data usage
by Quattro Pete - 02/19/20 09:46 PM
Gas in the 80's vs Today
by alcyon - 02/19/20 09:34 PM
1993 Hilux 3.0 diesel
by Mayberryminitruc - 02/19/20 08:58 PM
WrightGrip 2.0 wrench set
by spasm3 - 02/19/20 08:57 PM
Don't forget about your clutch fluid
by Number_35 - 02/19/20 08:40 PM
Financial Advice
by cpayne5 - 02/19/20 08:28 PM
2003 Accord 6 Cylinder EX No start
by Gito - 02/19/20 08:03 PM
Oil Advice For 1990s Era Yamaha ATVs
by DockHoliday - 02/19/20 07:42 PM
2 quarts supertech 0w-20 for $4.56
by sjstangman - 02/19/20 07:35 PM
1994 Buick Century 63K miles
by MuzzleFlash40 - 02/19/20 07:33 PM
Why is this plug so expensive?
by motor_oil_madman - 02/19/20 07:01 PM
Mice and rat deterrent
by whizbyu - 02/19/20 06:45 PM
Gen Outlets Not Working
by coopns - 02/19/20 06:24 PM
Updated Motorcraft FL-2062-A
by advocate - 02/19/20 06:18 PM
Newest Members
Mayberryminitruc, DaiwaGuy, Gunboatmac, Mad_Max_Sam, 24Carat
70756 Registered Users
Who's Online Now
22 registered members (ctechbob, Compagnion, 3311, blufeb95, bbhero, BlakeB, 2 invisible), 928 guests, and 16 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics301,684
Posts5,200,468
Members70,756
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
Intermittent Braking Vibration? #5341721 02/05/20 10:58 AM
Joined: Sep 2002
Posts: 4,046
G
Gebo Offline OP
OP Offline
G
Joined: Sep 2002
Posts: 4,046
My 4Runner will stop smooth as silk most of the time. Then, out of the blue, it will vibrate when I apply the brakes. Reminds me of a warped rotor. Two stops later, smooth as silk when braking. It's not some terrible vibration as it only happens about 25% of the time when applying the brakes. What could this be? I only us Toyota OEM brakes. I lube the slide pins but maybe I got a caliper that is slightly sticking?

What would you check first?


'98 LEX LS400 305K
'02 4Runner 250K
'05 Lex LS430 90K
'07 Lex GX470 70K

Shell Gas and Truck 5W-30
QS HM 10W-30
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: Intermittent Braking Vibration? [Re: Gebo] #5341739 02/05/20 11:12 AM
Joined: Oct 2017
Posts: 1,370
M
MParr Offline
Offline
M
Joined: Oct 2017
Posts: 1,370
Check the front brakes carefully. Also, check the front steering stabilizer and suspension components.


2019 VW Tiguan SE 2.0 TSI Now: Castrol Pro OE LL IV 0W20 & OE VW/Mann
2017 Ford Escape SE 2.0T Now: Kendall GT-1 Max 5W30 FS & NAPA Gold 1348
2014 F-150 4x4 Now: Unk & Motorcraft FL-500s
Re: Intermittent Braking Vibration? [Re: Gebo] #5341742 02/05/20 11:15 AM
Joined: Sep 2002
Posts: 4,046
G
Gebo Offline OP
OP Offline
G
Joined: Sep 2002
Posts: 4,046
Just had toyota OEM shocks replaced all around and it was doing the shaking before hand. The mechanic said the suspension components looked fine.


I'll check the "steering stabilizer bar" and the front brakes again.


'98 LEX LS400 305K
'02 4Runner 250K
'05 Lex LS430 90K
'07 Lex GX470 70K

Shell Gas and Truck 5W-30
QS HM 10W-30
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: Intermittent Braking Vibration? [Re: Gebo] #5341754 02/05/20 11:25 AM
Joined: Jan 2004
Posts: 6,491
N
nthach Offline
Offline
N
Joined: Jan 2004
Posts: 6,491
If the 4Runner is anything like your LS4x0s, there's a strut bar bushing that can create a clunk when braking. Toyota uses anti-rattle springs on most of their cars.

To me, it sounds like the friction film was removed and reapplied onto the rotors - NAO pads work via cohesive friction.

Re: Intermittent Braking Vibration? [Re: Gebo] #5341824 02/05/20 12:19 PM
Joined: Mar 2004
Posts: 23,828
D
Donald Offline
Offline
D
Joined: Mar 2004
Posts: 23,828
Have you lubed the pad ears?


2015 Ford F-250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Intermittent Braking Vibration? [Re: Gebo] #5341837 02/05/20 12:33 PM
Joined: Dec 2009
Posts: 496
Q
quint Offline
Offline
Q
Joined: Dec 2009
Posts: 496
My '01 Sequoia does this. Its subtle, but it is there, and only so often. Smooth braking all day long then out of the blue shake-shake-shake-shake while coming to a random stop. Then fine and smooth at the next stop sign or light. Makes no sense.

Re: Intermittent Braking Vibration? [Re: nthach] #5341841 02/05/20 12:38 PM
Joined: Sep 2002
Posts: 4,046
G
Gebo Offline OP
OP Offline
G
Joined: Sep 2002
Posts: 4,046
Originally Posted by nthach
If the 4Runner is anything like your LS4x0s, there's a strut bar bushing that can create a clunk when braking. Toyota uses anti-rattle springs on most of their cars.

To me, it sounds like the friction film was removed and reapplied onto the rotors - NAO pads work via cohesive friction.



These are OEM Toyota rotors that were replace about 10k miles ago. I don’t think that is contributing to the problem. IDK?


'98 LEX LS400 305K
'02 4Runner 250K
'05 Lex LS430 90K
'07 Lex GX470 70K

Shell Gas and Truck 5W-30
QS HM 10W-30
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: Intermittent Braking Vibration? [Re: quint] #5341843 02/05/20 12:38 PM
Joined: Sep 2002
Posts: 4,046
G
Gebo Offline OP
OP Offline
G
Joined: Sep 2002
Posts: 4,046
Originally Posted by quint
My '01 Sequoia does this. Its subtle, but it is there, and only so often. Smooth braking all day long then out of the blue shake-shake-shake-shake while coming to a random stop. Then fine and smooth at the next stop sign or light. Makes no sense.



Exactly!!!!

It’s not enough to make you wanna check it out. Just enough to irritate you. duh

Last edited by Gebo; 02/05/20 12:44 PM.

'98 LEX LS400 305K
'02 4Runner 250K
'05 Lex LS430 90K
'07 Lex GX470 70K

Shell Gas and Truck 5W-30
QS HM 10W-30
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: Intermittent Braking Vibration? [Re: Donald] #5341845 02/05/20 12:42 PM
Joined: Sep 2002
Posts: 4,046
G
Gebo Offline OP
OP Offline
G
Joined: Sep 2002
Posts: 4,046
Originally Posted by Donald
Have you lubed the pad ears?


Donald, you may not remember but I’m that freak that only uses the 3 Toyota brake lubes. 1 for slides, 1 for shims and 1 for ears. LOL

Looks like I’m gonna be taking a wheel off. Fiddlesticks 🤬

It would make sense if they just slightly hang up on one side every now and then.

Last edited by Gebo; 02/05/20 12:43 PM.

'98 LEX LS400 305K
'02 4Runner 250K
'05 Lex LS430 90K
'07 Lex GX470 70K

Shell Gas and Truck 5W-30
QS HM 10W-30
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: Intermittent Braking Vibration? [Re: Gebo] #5341858 02/05/20 12:52 PM
Joined: Feb 2011
Posts: 7,643
L
LeakySeals Offline
Offline
L
Joined: Feb 2011
Posts: 7,643
Does an 02 4Runner still have drums in the back?


06 Escalade 6.0L LQ9 AWD 170k M1 5w30
03 Maxima 3.5L 170k Maxlife HM 10w30
05 Malibu Classic 2.2 111k M1 5w30
06 Altima 2.5L 167k unk
Re: Intermittent Braking Vibration? [Re: LeakySeals] #5341866 02/05/20 12:57 PM
Joined: Dec 2005
Posts: 4,563
0
02SE Offline
Offline
0
Joined: Dec 2005
Posts: 4,563
Yes, it does.

Re: Intermittent Braking Vibration? [Re: Gebo] #5341880 02/05/20 01:13 PM
Joined: Dec 2005
Posts: 4,563
0
02SE Offline
Offline
0
Joined: Dec 2005
Posts: 4,563
OP, check for signs of a rear axle seal leak. Gear oil can leak past the seal, and contaminate the brake shoes and drum, with consequent intermittent braking performance. If you do find an axle seal leak, that seal needs to be replaced, likely along with the wheel bearing on that side. If that is the case, you need to check the rear axle vent, to make sure it is in fact venting, and not causing pressure build up and a subsequent leak.

Re: Intermittent Braking Vibration? [Re: Gebo] #5341918 02/05/20 01:58 PM
Joined: Aug 2017
Posts: 644
A
ad244 Offline
Offline
A
Joined: Aug 2017
Posts: 644
My 04 Tacoma does this,but ive always chalked it up to cheap rotors.

Re: Intermittent Braking Vibration? [Re: 02SE] #5341948 02/05/20 02:25 PM
Joined: Sep 2002
Posts: 4,046
G
Gebo Offline OP
OP Offline
G
Joined: Sep 2002
Posts: 4,046
Originally Posted by 02SE
OP, check for signs of a rear axle seal leak. Gear oil can leak past the seal, and contaminate the brake shoes and drum, with consequent intermittent braking performance. If you do find an axle seal leak, that seal needs to be replaced, likely along with the wheel bearing on that side. If that is the case, you need to check the rear axle vent, to make sure it is in fact venting, and not causing pressure build up and a subsequent leak.


Interesting. I have heard some faint roaring when under throttle going up grade that I thought was the muffler. Hmmmm....

Shoot, now I think I’ll go chech the back first. cry

Last edited by Gebo; 02/05/20 02:27 PM.

'98 LEX LS400 305K
'02 4Runner 250K
'05 Lex LS430 90K
'07 Lex GX470 70K

Shell Gas and Truck 5W-30
QS HM 10W-30
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: Intermittent Braking Vibration? [Re: 02SE] #5344512 02/08/20 10:38 AM
Joined: Feb 2011
Posts: 7,643
L
LeakySeals Offline
Offline
L
Joined: Feb 2011
Posts: 7,643
I do remember reading rear axle and the drum itself being the source of vibrations when braking for some. Why I asked. Does make sense if that axle bearing is leaking. The drum is just like a rotor. It's going to get out of whack sooner or later.


06 Escalade 6.0L LQ9 AWD 170k M1 5w30
03 Maxima 3.5L 170k Maxlife HM 10w30
05 Malibu Classic 2.2 111k M1 5w30
06 Altima 2.5L 167k unk
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™