Shaking While Braking

[z4r]

Rotor life does have much to do with service/duty level, as mine goes thru hell. Most pads I used were pre-scorched (bedding is optional) quality pads, most of them made in Canada, one or two in US. Currently I'm using some AUS PBR/Axxis pads (Deluxe Plus, organic pads), seem to work well.

Buying local is an option, but it depends on the store if you want to exchange/return. When my Advance Auto rotors warped, they gave me heck of a time. They blame on calipers, pads, etc until I showed them the calipers receipt I bought at the same time of Tundra conversion. I doubt they would have allowed exchange/return if I didn't get those calipers at the same time. You might have an easier time with this, but who knows.

 

[giro]

Trace the hard line from the caliper to the softline to the body, disconnect any holding brackets along the way (10mm bolts, one of them on the knuckle) . You can get extra slack that way, and no need to bend anything or disconnect hard line from caliper.

Once I got my 4runner working again yesterday I crawled underneath and took a look, seeing exactly what you described. The metal portions of the lines and the instructions I had previously seen had just thrown me for a loop, after having done a brake job on our Sienna where there's no metal at the end of the lines.

It will be next on my list, after I return and rebuy them. No need to have 7 months off my 2 year warranty....but I'm not driving over the mountain much right now so it doesn't matter too much.

 

[mynosebleeds]

I am having the same problem but it is greatly exaggerated by the brush guard that the previous owner had installed. Removing it as I type.

I also just learned that one of my front rotors is has been turned too many times so I have to order new ones to fix the problem. While I was about to order them I read this post and am now intrigued by the Tundra Conversion as warped rotors seems to be a common problem in 3 gens.

I know that it was my brake heavy driving coming down the mountain that caused the warping (usually I'm very good about using the engine to brake I just got lazy) but does the conversion help that much? Any threads I can read about this?

 

[4RunnerStarv]

I was just about to ask about this as well.. but I guess I just found out what was all the crazy shaking my car was doing, do anyone care to explain what the tundra upgrade is

 

[habanero]

Tundra brake upgrade-
Replacing the stock 4Runner calipers, pads and rotors with either 199mm or 231mm brakes for a Tundra. Everything else stays the same EXCEPT....
15" Wheels won't work
You may need a spacer or adapter to fit the Tundra calipers- I did on both the tri-spokes and the land cruiser wheels but not with the tacoma 'snowflake' wheels on my 99 4Runner. Both have the 231mm version.
You will have to trim the backing plate, dust cover, whatever you call that thing.

The search button should reveal lots.

This is not a solves everything situation. Are the rears adjusted correctly? These can also warp though in my experience so far so good after going through a couple of sets of 4Runner rotors. I had to replace rotors and pads so I went for it.

Search search search........

 

[giguchan]

Tundra brake upgrade eh? I have the same issue. i know it's the rotors this time i think i might have to get new ones... the truck sits more than i drive it(have company car)

this sounds like something i might want to try

 

[Nelsonmd]

You sir, have warped rotors

I had the same exact problem. I had warped front rotars. i got them resurfaced and the feel great now. if you have really worn rotars you may as well just get new ones. if not get them resurfaced.

Warped rotors is the most common problem with the 3rd gen.:hello:

Oh man, you guys keep up this "silly" warped rotor talk, and next thing you know, Mom will be back here telling you the what for and how to...

 

[giguchan]

well after she's done making my bed, she will be changing my oil in my runner.. and if there is any daylight left she will be chasing the Mower around the yard. then i guess she can start supper.

 

[habanero]

well after she's done making my bed, she will be changing my oil in my runner.. and if there is any daylight left she will be chasing the Mower around the yard. then i guess she can start supper.

Aw geez, change that to 'her 4Runner' and you've just described a little of my day.


And I ain't tellin' any what fors or how to...they got a search button for that.

 

[zcruiser]

Oh man, you guys keep up this "silly" warped rotor talk, and next thing you know, Mom will be back here telling you the what for and how to...

I miss Mom... :surfer:

 

[giguchan]

Yeah,
Moms are great aint they?

Habanero,
oh yeah? sounds like a full day!

 

[jacktahoe]

My 98 warps the rotors all the time.

When the car is cold, it stops okay, when the rotors get hard it shakes when I stop.

I am too lazy to find out an after market upgrade, I just change the rotors when this happens.

I also try not to tow any more than 4000 pounds with the car down hills either...

hope this helps

 

[giguchan]

Hey jACK,
I have a popup, small bass boat, and a jetski.. none of which are very heavy.. I would like to try that upgrade,but i'll ahve to look into my aftermarket wheels/tires- i forgot what size they are.. Brembos do SOUND LIKE A GREAT IDEA THOUGH... it's very embarassing to have all that shaking goin on..

 

[JWaldz]

I swore the thread title said shaking while baking. I was like, "uhh, well yea.. sometimes"

 

[toyotalove]

shaking while breaking

I have the same problem with my '98 4runner, the thing is that i replace the rotor and pads last month. The shaking happens when Im driving thru a bump and hit the breaks it kind of feels that the break peddle gets loose and shakes. Please tell me what this is! :sad:

 

[ICD]

I have the same problem with my '98 4runner, the thing is that i replace the rotor and pads last month. The shaking happens when Im driving thru a bump and hit the breaks it kind of feels that the break peddle gets loose and shakes. Please tell me what this is! :sad:

In some of the other threads, people needed to re adjust the rear brakes and that eliminated the shaking as it has nothing to do with the fronts. Not saying this is your exact issue but far cheaper that a whole new rotor and pad set.

 

[Nelsonmd]

I have the same problem with my '98 4runner, the thing is that i replace the rotor and pads last month. The shaking happens when Im driving thru a bump and hit the breaks it kind of feels that the break peddle gets loose and shakes. Please tell me what this is! :sad:

Sounds like your ABS kicking in.

 

[mikebontoft]

Sounds like your ABS kicking in.

Ah you beat me to it. lol.

It's funny, reading back through this thread. People think it's a model-specific issue when it is in fact common on any car.

 

[bigms]

I'm having that same issue right now with my '98 4runner. Will use the advise on here to try to fix my problem... Thanks

 

[UpNorth4Runner]

I have had the break shake on two 4Runners 00 & 01. I solved the problem with Bosch Rotos and the cheep house brand carbon matalic pads. The pads go away very fast, around 15000 miles. Pads are super easy to change. This has been working for about 10 years now. I think the harder more expensive ceramic pads create a lot more heat. Also I think when the rotors get to hot the break lining dust fuses with rotor creating an uneven surface. Resurfacing the rotor to correct this makes the rotor thinner and the problem gets worse.