User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 07-09-2022, 01:45 AM #1
schmauster schmauster is offline
Member
 
Join Date: Jun 2018
Location: Norcal
Posts: 86
schmauster is on a distinguished road
schmauster schmauster is offline
Member
 
Join Date: Jun 2018
Location: Norcal
Posts: 86
schmauster is on a distinguished road
Cool Long brake pedal travel

Brakes feel ok but they engage very low. Can’t lock up the tires. I have done the TBU, replaced the rear wheel cylinders, replaced master cylinder (helped a lot), upgraded to stainless steel braided lines, adjusted the e brake rear brake to come on at 2 clicks, power bled the system at 20 psi.

Any ideas?

EDIT: Added master cylinder to list of things i changed

Last edited by schmauster; 07-10-2022 at 07:27 PM. Reason: Added master cyl to list of things replaced
schmauster is offline   Reply With QuoteReply With Quote
Old 07-09-2022, 07:49 AM #2
jross20's Avatar
jross20 jross20 is offline
Senior Member
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,218
jross20 has a spectacular aura about jross20 has a spectacular aura about jross20 has a spectacular aura about
jross20 jross20 is offline
Senior Member
jross20's Avatar
 
Join Date: Jun 2019
Location: Georgia
Posts: 1,218
jross20 has a spectacular aura about jross20 has a spectacular aura about jross20 has a spectacular aura about
Does it seem like you basically have to push almost all the way down and then it becomes really firm? But doesn't seem like it's helping you that much? I've noticed that mine feel like that, if I have to really stop hard I really got to push the shit out of that pedal...

Maybe we both need new master cylinders?
jross20 is offline   Reply With QuoteReply With Quote
Old 07-09-2022, 07:50 AM #3
Brian.'s Avatar
Brian. Brian. is offline
Member
 
Join Date: Jan 2019
Location: Earth
Posts: 862
Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all
Brian. Brian. is offline
Member
Brian.'s Avatar
 
Join Date: Jan 2019
Location: Earth
Posts: 862
Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all
Quote:
Originally Posted by schmauster View Post
Brakes feel ok but they engage very low. Can’t lock up the tires. I have done the TBU, replaced the rear wheel cylinders, upgraded to stainless steel braided lines, adjusted the e brake rear brake to come on at 2 clicks, power bled the system at 20 psi.

Any ideas?

3 thoughts come immediately to mind. Shot seals in the master cylinder that allow for fluid to "bleed back" vs pressurizing the system. Air trapped in the system (ABS is the usual suspect, but you need software and a late 99+ or to be able to lock up the brakes). The third is that some people have encountered this before with the TBU and Never figured it out.

If the brakes were working fine (pedal travel/feel) before the TBU upgrade, it's almost certainly air in the system. Time to go to each junction point with a rag, helper on the pedal as you crack it free and do a 1-pump bleed from each, and every, connection in the brake system. Air likes to hold on at junction points, this is the fastest way to resolve it. Pressure bleeding with air already in the system just leads to cavitation/breaking up of the air and doesn't usually resolve the problem (at least in my experiences). I'd probably leave the ABS pieces till last, just to see if I could get the ABS to kick on after doing the rest.

You could also try parking on a Steep incline overnight and tapping all the lines before leaving it. Might help the air brake free and migrate to the highest point (nose up, obviously). Might also do nothing... used to work well on motorcycles, next morning would always find a good bit of air at the banjo bolt for the master cylinder.
__________________
'99 Limited 4x4, Millenium Silver ~ Maintenance Thread
Brian. is offline   Reply With QuoteReply With Quote
Old 07-09-2022, 08:47 AM #4
Devbot's Avatar
Devbot Devbot is offline
Senior Member
 
Join Date: Apr 2020
Location: Monroe, WA
Posts: 1,881
Real Name: Devan
Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold
Devbot Devbot is offline
Senior Member
Devbot's Avatar
 
Join Date: Apr 2020
Location: Monroe, WA
Posts: 1,881
Real Name: Devan
Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold Devbot is a splendid one to behold
FYI, ebrake has nothing to do with pedal feel. All you're doing is wearing out the cable faster and making it harder to use
I currently have the same problem, which I suspect is because my fluid is 20 years old and the color of an emerald. I drained a good bit out and replaced it a couple weeks ago and it firmed up greatly for a day or two but thats it
__________________
Y2K Highlander Millennium Silver 3.4L auto @ 300k and climbing
Toytec + 5100s / 210v + Tokicos / JBA UCAs / Anonymous Fab. LBJs / Total Chaos Gussets / EimKeith PCK + LCAR / Extended Bump Stops; Brake Lines; Rear Diff Breather / True North Fab. Hybrid Bumper / CBI Hybrid Bumper + Tire Carrier / 4xInnovations Hybrid Sliders / Smittybilt XRC Gen 3 Comp. / Opt Offroad Trailing Arms / Lil Skip Gas Skid / BudBuilt Front Skid

Last edited by Devbot; 07-09-2022 at 01:33 PM.
Devbot is offline   Reply With QuoteReply With Quote
Old 07-09-2022, 10:03 AM #5
octanejunkie's Avatar
octanejunkie octanejunkie is offline
Elite Member
 
Join Date: May 2013
Location: Los Angeles
Posts: 5,054
Real Name: C8H18 Mike
octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of
octanejunkie octanejunkie is offline
Elite Member
octanejunkie's Avatar
 
Join Date: May 2013
Location: Los Angeles
Posts: 5,054
Real Name: C8H18 Mike
octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of octanejunkie has much to be proud of
TBU can introduce soft pedal feel

Quote:
Originally Posted by schmauster View Post
adjusted the e brake rear brake to come on at 2 clicks
Factory says 5-7, 2 is too low

Quote:
Originally Posted by schmauster View Post
Brakes feel ok but they engage very low. Canít lock up the tires. I have done the TBU, replaced the rear wheel cylinders, upgraded to stainless steel braided lines
Check the FSM for pedal height check/adjustment. If you didn't touch the MC or booster a booster/MC shaft length/adjustment shouldn't be necessary.

Have you tested ABS yet?



Sent from my Pixel 4 XL using Tapatalk
__________________
.
1999 Toyota 4Runner SR5 Sport 4WD, V6 5-Speed e-Locker-> 4WD 4runner Journal Thread
1999 Toyota 4Runner SR5 Un-Sported 2WD, V6 Auto ->2WD 4runner Journal Thread
1959 Chevy 3100 1/2 Ton Pickup EVERYTHING done 'cept paint and body
.
octanejunkie is offline   Reply With QuoteReply With Quote
Old 07-09-2022, 11:53 AM #6
majdomo majdomo is offline
Member
 
Join Date: Feb 2019
Location: Los Angeles
Posts: 44
majdomo is on a distinguished road
majdomo majdomo is offline
Member
 
Join Date: Feb 2019
Location: Los Angeles
Posts: 44
majdomo is on a distinguished road
Be absolutely sure you donít have air in the system. I used a vacuum bleeder first and had tons of air in the lines after my TBU. Enlisted my son to help on a 2-man bleed and got it down pat.

Pressure bleeds are better than vacuum, but simple is sometimes best.

TBU does introduce a softer pedal but thatís the trade off for reducing / eliminating rotor runout.


Sent from my iPhone using Tapatalk
majdomo is offline   Reply With QuoteReply With Quote
Old 07-09-2022, 11:39 PM #7
toverturf toverturf is offline
Member
 
Join Date: Apr 2020
Location: Northern Utah
Posts: 150
toverturf will become famous soon enough toverturf will become famous soon enough
toverturf toverturf is offline
Member
 
Join Date: Apr 2020
Location: Northern Utah
Posts: 150
toverturf will become famous soon enough toverturf will become famous soon enough
I had this problem but without the TBU. I replaced the master cylinder, got stainless steel brake lines, rebuilt the rear brakes, bled it a ton, and nothing worked. Turns out it was the ABS module. Got a junkyard one and no more long pedal travel. I didn't have error codes or anything but clearly something was wrong with it.
__________________
1999 Limited with rear locker.
Sherpa Matterhorn | Sonoran Steel Diff Drop | SPC UCAs | DuroBumps Front and Rear | OME 890 Springs and Black Tokico Shocks | Eimkeith Reinforcements and PCK | Kings Coilovers | OCD Sway Bar Links | Opt Offroad Rear Arms | Lil Skips Gas Tank Skid Plate | FGP Rock Sliders
toverturf is offline   Reply With QuoteReply With Quote
Old 07-10-2022, 07:32 PM #8
schmauster schmauster is offline
Member
 
Join Date: Jun 2018
Location: Norcal
Posts: 86
schmauster is on a distinguished road
schmauster schmauster is offline
Member
 
Join Date: Jun 2018
Location: Norcal
Posts: 86
schmauster is on a distinguished road
Quote:
Originally Posted by octanejunkie View Post
TBU can introduce soft pedal feel



Factory says 5-7, 2 is too low



Check the FSM for pedal height check/adjustment. If you didn't touch the MC or booster a booster/MC shaft length/adjustment shouldn't be necessary.

Have you tested ABS yet?



Sent from my Pixel 4 XL using Tapatalk
I have actuated the ABS on dirt roads and it works fine if thats what you mean. I have changed out the master cylinder and booster in the past so these things are absolutely valid things to check. Very helpful. Few origional parts remain on this 4Runner. It was neglected when i met my long time GF and it has 380,000 miles!

This will be my first plan of attack, i didnt realize the FSM had numbers on this.


Quote:
Originally Posted by toverturf View Post
I had this problem but without the TBU. I replaced the master cylinder, got stainless steel brake lines, rebuilt the rear brakes, bled it a ton, and nothing worked. Turns out it was the ABS module. Got a junkyard one and no more long pedal travel. I didn't have error codes or anything but clearly something was wrong with it.

Im going to check the adjustment of the pedal and brake rod first but ive got a feeling this might be my problem. Ive bled about 3/4 of a gallon through the system in one go and its still not getting much better. I had a bunch of hard crunchy chunks in one wheel cylinder. Maybe parts of the ABS module. Maybe ill crack the old broken ABS module open and see what failed if that ends up fixing it.

Rumor has it you can pull the ABS fuse to see if the pedal gets better. Maybe ill try it out.

Hope this goes smoothly for me. Next thing on the list is getting the mice out of the vents and a new heater core..

Last edited by schmauster; 07-10-2022 at 07:38 PM.
schmauster is offline   Reply With QuoteReply With Quote
Old 07-10-2022, 08:40 PM #9
FD7683 FD7683 is offline
Member
 
Join Date: Sep 2020
Location: Ohio
Posts: 518
FD7683 will become famous soon enough FD7683 will become famous soon enough
FD7683 FD7683 is offline
Member
 
Join Date: Sep 2020
Location: Ohio
Posts: 518
FD7683 will become famous soon enough FD7683 will become famous soon enough
I have been chasing this problem for years but I gave up like a year or so ago. It has a long travel just like yours but it firms up good. Went from adjusting the e-brake to brake bleed and nothing. Apparently the ABS module as a whole (96-00) might be the big cause of this problem.
__________________
2000 4Runner Limited 4x4 V6
FD7683 is offline   Reply With QuoteReply With Quote
Old 07-11-2022, 01:13 AM #10
schmauster schmauster is offline
Member
 
Join Date: Jun 2018
Location: Norcal
Posts: 86
schmauster is on a distinguished road
schmauster schmauster is offline
Member
 
Join Date: Jun 2018
Location: Norcal
Posts: 86
schmauster is on a distinguished road
I might hit up the yard tomorrow and grab an ABS module. Theyre pretty cheap and theres only one 4Runner near me.


Since squishy brakes are common it makes sense why Toyota called it the 4Runner ("fore" as in, front of the line)
schmauster is offline   Reply With QuoteReply With Quote
Old 07-11-2022, 08:23 AM #11
Brian.'s Avatar
Brian. Brian. is offline
Member
 
Join Date: Jan 2019
Location: Earth
Posts: 862
Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all
Brian. Brian. is offline
Member
Brian.'s Avatar
 
Join Date: Jan 2019
Location: Earth
Posts: 862
Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all Brian. is a name known to all
Quote:
Originally Posted by schmauster View Post
Since squishy brakes are common it makes sense why Toyota called it the 4Runner ("fore" as in, front of the line)
Don't lump them all together. My stock brake system 4runner has Exceptional brake feel, not squishy at all and has appropriate pedal travel. It's only common among those who try to out-engineer Toyota by swapping parts around from different models.
__________________
'99 Limited 4x4, Millenium Silver ~ Maintenance Thread
Brian. is offline   Reply With QuoteReply With Quote
Old 07-11-2022, 01:05 PM #12
schmauster schmauster is offline
Member
 
Join Date: Jun 2018
Location: Norcal
Posts: 86
schmauster is on a distinguished road
schmauster schmauster is offline
Member
 
Join Date: Jun 2018
Location: Norcal
Posts: 86
schmauster is on a distinguished road
Quote:
Originally Posted by Brian. View Post
Don't lump them all together. My stock brake system 4runner has Exceptional brake feel, not squishy at all and has appropriate pedal travel. It's only common among those who try to out-engineer Toyota by swapping parts around from different models.
Welcome to the custom car scene
schmauster is offline   Reply With QuoteReply With Quote
Old 07-11-2022, 02:30 PM #13
brillo_76's Avatar
brillo_76 brillo_76 is offline
Elite Member
 
Join Date: May 2017
Location: Western PA
Posts: 5,052
Real Name: Jon
brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future
brillo_76 brillo_76 is offline
Elite Member
brillo_76's Avatar
 
Join Date: May 2017
Location: Western PA
Posts: 5,052
Real Name: Jon
brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future
I don't know about anyone else... The only reason I swapped mine Calipers out were for the wider rotors was to get rid of the constant warping rotors. As I was sick of the warping thin rotors.

I tried everything to prevent them from warping.. Back brakes adjusted up you name it. They only last 3 to 6 months max and warp. Granted its all up and down hills in my area may have something to do with it.

However, Mine don't feel spongy soft at all. They feel just like they did with the stock OEM calipers and rotors on. [Except for they no longer warp ]
__________________
7 3rd gens listed in the build thread (2 are parts mobiles)
Build Thread: https://www.toyota-4runner.org/3rd-g...os-builds.html
Brillo's Bucket Fluid Ex changer: https://www.toyota-4runner.org/3rd-g...ml#post3358086
Sparks Plugs Wire and Coil Information: https://www.toyota-4runner.org/3rd-g...on-5vz-fe.html
brillo_76 is offline   Reply With QuoteReply With Quote
Old 07-11-2022, 07:08 PM #14
Toya! Toya! is offline
Member
 
Join Date: Mar 2022
Location: Santa Fe, NM
Posts: 61
Toya! is on a distinguished road
Toya! Toya! is offline
Member
 
Join Date: Mar 2022
Location: Santa Fe, NM
Posts: 61
Toya! is on a distinguished road
Seems like I am having the same issue (besides the ABS working? *maybe*).

I have played with the pedal distance, and no matter what, it all feels the same. Long travel then 3/4 of the way down it brakes perfectly normal. I have replaced the entire rear brakes, front brakes (non TBU), and some ABS components. Ive bled the brakes 10 times with no change happening. Ive researched like a mother so if you want to bounce questions off me send me a PM.
Toya! is offline   Reply With QuoteReply With Quote
Old 07-11-2022, 07:55 PM #15
phattyduck phattyduck is offline
Senior Member
 
Join Date: Mar 2016
Location: Pasadena, CA
Posts: 4,896
phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future
phattyduck phattyduck is offline
Senior Member
 
Join Date: Mar 2016
Location: Pasadena, CA
Posts: 4,896
phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future phattyduck has a brilliant future
Quote:
Originally Posted by Devbot View Post
FYI, ebrake has nothing to do with pedal feel.
It can if it is way loose, but he tightened it too much. That won't be the issue.

Here's the factory procedure for the '96-'00 4Runners:


Pay special attention to the master cylinder bleeding procedure and wheel order. If that doesn't work, go activate the ABS system and bleed again. It may take a couple ABS cycles and bleeds to get all the air out.

-Charlie
__________________
'99 4Runner SR5 Auto - 4WD swapped
'89 Camry Alltrac LE 3S-GTE 5spd
'17 Chevy Volt Premier
'16 Honda Odyssey Elite
Previous: '88 Camry Alltrac LE 3S-GE BEAMS, 90 Camry 3S-GTE, 90 Camry DX, '03 WRX wagon, '08 Outback XT
phattyduck is offline   Reply With QuoteReply With Quote
Reply

Tags
braided , cylinders , long , upgraded , wheel

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Having the long brake pedal travel/low brake pedal mystery problem Dragon_EX 3rd gen T4Rs 16 05-19-2021 10:58 AM
Long Brake Pedal Travel vs Soft Brakes stever1000 3rd gen T4Rs 17 04-26-2018 01:27 PM
Long Brake Pedal Travel flyinbrick 3rd gen T4Rs 11 10-10-2017 06:12 PM
Spongy/Long travel Brake Pedal w/ Tundra brake upgrade 2002_thundercloud 3rd gen T4Rs 8 06-22-2012 01:52 AM
Long brake pedal travel Jeremy03Sport Maintenance/Detailing 16 06-15-2006 09:37 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 10:23 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2023 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2023 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2023 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2020