After driving brakes lock up what can it be??

[HondaMac]

Okay well ive replace every possible thing on the brakes which came out to close to 1200.....

and basically the only thing i didnt replace was the calipers which i did yesterday and still same thing i drive for 5 mins and the front brakes lock up on me where i cant drive until cool...

i dont get it please guys help me i need your opinions.....

some one told me could be my lines now and another thing i see is the abs light always on now you think it as to do with a safety feature to where it locks up the front?

[lokuputha]

Check your master cylinder.

I had the same problem with the brakes locking and burning up. After swapping over a full Acura Vigor brake system, the problem still persisted. I replaced the master cylinder and bam!...its good, and good.

[HondaMac]

I replace that already and at the shop it lock up and they said it was defected so they replaced it with another one! and i drove it home and after that its still locking up but then releasing after the brakes cool off like pressure build up and the after a couple hours it'll be good for another 5 mins...... so master can't be and dont wanna go back cuz they ripd me off already of 1200 bucks....... bump for more opinions thanks for your comment buddy.

BUMP.

[ExplodingCake]

Since your ABS light is on , pull the code.

[HondaFan81]

I agree with last comment, pull ABS code. Open your trunk, to the right in the plastic liner is a plastic cap covering a hole in which you can see an LED light for the ABS computer/module. Check the codes, I think you need to have the ignition key in the "II" position, then go back there and check, it's a red light. Anyhow, this should lead you to something you need to further investigate/narrows it down. Hit us back with what you find. I think that because your brakes do work and do eventually release, that mechanically things are fine. I'm thinking that since your ABS light is on, something is tripping there causing randomly brake lock up. Your ABS work by pulsating the brakes on/off to come to a non-skidding stop, well it's doing that sporatically for some reason on your car I'm thinking and causing it to lock up. However, after ruling out your ABS system is okay, then I'd move onto mechanically something the shop did not catch (technically they should have noticed anything obvious, so by default I'm not primarily focusing on that).

http://media.honda.co.uk/car/owner/m.../400/13-50.pdf

[lokuputha]

how about the brake booster?....is there any issues in there that could cause this?

....

[HondaFan81]

In regards to the brake booster idea, I see the way it works and it technically could be possible. Assuming this issue occurs when he brakes, which then he says it locks up and releases after like 5 minutes.

The purpose of the brake booster is to ease the braking force needed to properly stop. Anyhow, your brake booster atmospheric port could be plugged, which then would allow you to generate pressure to brake, possibly leak past fulcrum plate and come in behind the plate temporarily causing lock up, then slowly leaking back past the fulcrum plate to slowly release. However, there is a spring that pushes the fulcrum plate back to it's default position and that would quickly overcome (less than 5 minutes more than likely) the leaked air behind the plate causing potential lock up.

I have never heard or witnessed this happening. I haven't run into or heard of a brake booster failure yet. Like any part, it can fail. I think that if it fails though, it will be harder braking issues rather than lock up.

I'm still leaning to you pulling the ABS code and something causing the ABS to kick in unnecessarily. Pull that code! This will point you in a direction, then you can check the mechanics of it, assuming it passes that part first.

[HondaMac]

I appreciate you guys helping me out man... I'm a do that and pull the code and then let you guys know and about a brake booster?? i have a 92 ex i dunno if it comes with a booster all i see is a master and it releases after like 5 hours not minutes......... then again you guys know what ya talking about, but ill do that Fan and keep you updated thanks so far guys.... bump bump

[accord junkie]

ha ha always geting technical did u know that our cb,s are notorious for building up rust around the rubber flex hose that connects 2 the strut i had this prob after changing master cyl caliper. when i went to change the flex cause i thought it might b clogged.when i loosened the nut from the strut i heard all the fluid go through and never had the prob again.

[HondaMac]

By any chance would you have a pic of that hose so i can get under there myself and check buddy?! bumpbump

[accord junkie]

no i dont but it is ur flex hose that rns from ur calliper and then there is a spot where its connected on ur strut with a type of fastener if u loosen this fastener it couls fix ur prob it did for me i will try 2 get a pic of this for ya.but dont get hung up on it take ur wheel off and take a look u will c where im talking about its a 10mm head on the bolt.

[HondaMac]

Great bro I'm gunna hope that's my problem cuz I've put 1200 into the brakes alone and i have proof lol........ but im guessing pulling the code is getting it to a Autozone and putting in under the machine thing right??? bump bump.

[cvc7chris]

DUDE i think AUTOZONE doesn't pull codes for ANYTHING Under a 1996

[birdmanCB7]

naw they do

[deevergote]

DUDE i think AUTOZONE doesn't pull codes for ANYTHING Under a 1996

Why not? They just don't use the OBD2 scanner.