Author Topic: BRAKES!!! need help. (Read 3562 times)

95SAS · « **on:** Sep 19, 2008, 06:54:22 PM »

ok ive been having this problem for quite a while now, push the pedal and it goes straight to the floor. ive bleed them 6 times and the pedal still goes straight to the floor, im really starting to think about taking it to midas and having them deal with it, beacuse i cant figure it out. i have been bleeding the brakes in the correct order. any advice? and as far as i can tell i dont have a leak anywere. $Beer Chug\'n$

Thanks

WHITE_TRASH · « **Reply #1 on:** Sep 19, 2008, 06:59:51 PM »

Does pressure build up if you pump them or does it always go to the floor?

lilbuddy · « **Reply #2 on:** Sep 19, 2008, 07:04:39 PM »

Like White trash said, does it build pressure or always go to the floor?

If it builds some sort of pressure, I would bleed the master cylinder then do all the others...

If builds no pressure, most likely the master cyl is bad.

Is there any sort of leakage from the master cylinder around the back of it on the booster?

fordh8r · « **Reply #3 on:** Sep 19, 2008, 07:52:14 PM »

By chance, are you using a vac bleeder (1 person method) or are you pumping and then opening the bleeder while holding (2 person method)?

95SAS · « **Reply #4 on:** Sep 19, 2008, 07:56:12 PM »

pressure does build up if i pump them 3 times, i will try bleeding the master cyl then bleed the brakes, i dont see any leakage. im using a vac bleeder BTW

WHITE_TRASH · « **Reply #5 on:** Sep 19, 2008, 08:07:28 PM »

Sometimes the vacuum bleeders can't get all the air out.. Try getting a buddy and pressurizing the system old school. I'll bet you get brakes then. I've had the same issue before.

95SAS · « **Reply #6 on:** Sep 19, 2008, 08:24:35 PM »

Quote from: WHITE_TRASH on Sep 19, 2008, 08:07:28 PM

Sometimes the vacuum bleeders can't get all the air out.. Try getting a buddy and pressurizing the system old school. I'll bet you get brakes then. I've had the same issue before.

ive tried that too and it still did not get it, im going to try a few things tomorrow. ill let you know what happens. Thanks for the advice.

Yota Up · « **Reply #7 on:** Sep 19, 2008, 08:49:40 PM »

I think you and I are having the same problem.

I've heard someone recommend to have the truck running while doing it, I just don't get why you'd do that.

Also heard a recommendation to open valve first, then have someone push and hold while you close the valve. I don't know why.

I had a good friend tell me that I should just keep on bleeding, to put a big bottle or two through it. How many squirts should it take at the far wheel(driver rear)?

95SAS · « **Reply #8 on:** Sep 19, 2008, 09:01:42 PM »

im on my 3rd or 4th quart through it, i just dont know what is wrong, im going to bleed the MC tomorrow and see if that helps. the crappy thing is my buddys are all going to take there trucks out this weekend and i dont want to go unless i get my brakes fixed. ill try like hell tomorrow.

WHITE_TRASH · « **Reply #9 on:** Sep 19, 2008, 09:05:40 PM »

I have the best luck having someone pump the brakes while I keep my finger over the open bleeder to keep air out. That or putting a small line over the bleeder into a container of brake fluid will also do the same thing.

yotaweelr · « **Reply #10 on:** Sep 19, 2008, 10:24:13 PM »

What do you know about bench bleeding?

toyotanner · « **Reply #11 on:** Sep 19, 2008, 10:28:23 PM »

just buy a new master cylinder, bench bleed it, install it..... i bet your problem is solved

krash81 · « **Reply #12 on:** Sep 20, 2008, 05:39:03 AM »

x2...you have the symptoms of a bad master cylinder. They are easy to replace. I did mine in my friends driveway in less than 30 minutes.

95SAS · « **Reply #13 on:** Sep 20, 2008, 04:59:44 PM »

i bought a new master cylinder today and bench bled it and put it on and now when i go to bleed the brakes i get nothing but air? what could be wrong

95SAS · « **Reply #14 on:** Sep 20, 2008, 07:15:55 PM »

could it be the lspv? ive got a spare i could throw on.

79coyotefrg · « **Reply #15 on:** Sep 20, 2008, 08:01:47 PM »

Quote from: 95SAS on Sep 20, 2008, 04:59:44 PM

i bought a new master cylinder today and bench bled it and put it on and now when i go to bleed the brakes i get nothing but air? what could be wrong

your using a vacuum bleeder, toss that junk, get a buddy to pump the pedal till theres some pressure then have him hold the pedal down YOU break open the bleeder, air will squirt out, then CLOSE the bleeder, and tell buddy to pump again
BUDDY MUST NOT LET THE PEDAL OFF THE FLOOR TILL YOU TELL HIM TO

i have never in my life even when replacing an entire system used more than 1/2 quart of fluid, but that was wheel cylinders master lines and all

79coyotefrg · « **Reply #16 on:** Sep 20, 2008, 08:04:03 PM »

Quote from: 95SAS on Sep 20, 2008, 07:15:55 PM

could it be the lspv? ive got a spare i could throw on.

take it loose from the axle and tie it up to the frame, problem solved

95SAS · « **Reply #17 on:** Sep 20, 2008, 08:09:45 PM »

Quote from: 79coyotefrg on Sep 20, 2008, 08:01:47 PM

your using a vacuum bleeder, toss that junk, get a buddy to pump the pedal till theres some pressure then have him hold the pedal down YOU break open the bleeder, air will squirt out, then CLOSE the bleeder, and tell buddy to pump again
BUDDY MUST NOT LET THE PEDAL OFF THE FLOOR TILL YOU TELL HIM TO

i have never in my life even when replacing an entire system used more than 1/2 quart of fluid, but that was wheel cylinders master lines and all

thats what i was doing, all i got was air air and more air...

brainlessfool · « **Reply #18 on:** Sep 20, 2008, 09:39:37 PM »

after you get the air out mite want to check the rear ajustment too. if there low you'll have to pump them to get brakes. some time ppl misstake it for needing to rebleed.

toyotanner · « **Reply #19 on:** Sep 21, 2008, 03:52:51 PM »

did you bleed the lspv?

95SAS · « **Reply #20 on:** Sep 21, 2008, 05:42:15 PM »

Quote from: toyotanner on Sep 21, 2008, 03:52:51 PM

did you bleed the lspv?

yes multiple times, i bought new wheel cylinders today and i still can get the rear brakes to bleed just air comes out no fluid, is it possible that i have a clog?

toyotanner · « **Reply #21 on:** Sep 21, 2008, 06:48:53 PM »

...maybe. the air that comes out is there pressure behind it? like when you crack the bleeder can you hear the air or does just nothing come out

95SAS · « **Reply #22 on:** Sep 21, 2008, 07:10:51 PM »

i can hear the air a little bit but im not getting any fluid

attitude of gratitude · « **Reply #23 on:** Sep 21, 2008, 08:15:15 PM »

Crack the bleeder at the lspv and have someone (or a 2x4) push the pedal down with it open. Hold the pedal, close the bleeder and repeat. Bleed the lpsv first before worry about the wheels. By the way I hope it's not a NAPA reman master cylinder . I bought one and bench bled it and had the same problem you're havin. New parts don't mean good parts!!

toyotanner · « **Reply #24 on:** Sep 21, 2008, 08:29:09 PM »

open the rear bleeders and just pump the brakes til fluid comes out and then start bleeding them normal

yotaweelr · « **Reply #25 on:** Sep 21, 2008, 10:34:31 PM »

sometimes what I do is kind of a speed bleed. stick your finger over the bleeder screw while it is open, then have someone pump the brakes till fluid comes out. your finger will act as a one way valve. fluid has to come out if it is releasing any kind of pressure when the brake pedal is pressed.

boobap · « **Reply #26 on:** Sep 22, 2008, 11:02:32 AM »

you could also do a gravity bleed...it takes a while, but it might work for you. all you got to do is open all four corners and just let it bleed out. KEEP AN EYE ON THE MASTER LEVEL. you do not want that to get to low.

krash81 · « **Reply #27 on:** Sep 22, 2008, 04:05:49 PM »

Quote from: boobap on Sep 22, 2008, 11:02:32 AM

you could also do a gravity bleed...it takes a while, but it might work for you. all you got to do is open all four corners and just let it bleed out. KEEP AN EYE ON THE MASTER LEVEL. you do not want that to get to low.

And make sure to leave the lid off...This is how I usually replace brake fluid. Has always worked for me..And just because a part is new doesn't mean it works.

95SAS · « **Reply #28 on:** Sep 22, 2008, 06:36:02 PM »

well i could not figure it out i replaced the calipers, wheel cylinders, master cylinder twice and changed out the lspv so i loaded it on the trailer and halled it to my buddys shop, they should be able to figure it out (i hope) i have tried everything. thanks for your help guys.

Yota Up · « **Reply #29 on:** Sep 24, 2008, 07:47:15 PM »

Quote from: 95SAS on Sep 22, 2008, 06:36:02 PM

well i could not figure it out i replaced the calipers, wheel cylinders, master cylinder twice and changed out the lspv so i loaded it on the trailer and halled it to my buddys shop, they should be able to figure it out (i hope) i have tried everything. thanks for your help guys.

Damn, that's cavalry right there. Going to town on it.

I was going to suggest you releasing the rear-most fitting at the cylinder(closest to cab), while someone is pushing the pedal. If nothing comes out, you know it's the MC. Had that problem before myself.

I've bled the hell out of my brakes currently and still get pedal to floor. At this point, I'm certain it must be the MC. Time to replace another MC(piece of cake, just trouble finding one right now).

What about the vacccum booster - what are symptoms of that going bad? Since he's already replaced the MC, perhaps it could be that?

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