Brake pedal goes to floor after turning to full lock!
#1
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Brake pedal goes to floor after turning to full lock!
So after turning the wheel all the way to full lock in either direction the brake
pedal will drop to the floor. Then it pumps back up fine after turning the wheel back. I have bled the system, checked all lines for leakage and checked to make
sure that there are no lines being stretched. I am not losing fluid so my next guess is an internally faulty MC but i just wanted to get some input first.
Thanks in advance for any input.
pedal will drop to the floor. Then it pumps back up fine after turning the wheel back. I have bled the system, checked all lines for leakage and checked to make
sure that there are no lines being stretched. I am not losing fluid so my next guess is an internally faulty MC but i just wanted to get some input first.
Thanks in advance for any input.
#2
Re: Brake pedal goes to floor after turning to full lock! (Slomo_civic)
That's a weird one. Does it do that when not moving? If so, get someone to crank that wheel while standing on the brake. Check the engine bay and stuff to see if there's anything moving in there that shouldn't be. Might want to look under the dash and see if anything is hitting the brake pedal?
Janos
Janos
#3
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Re: Brake pedal goes to floor after turning to full lock! (Janos Lin)
Yes it happens when not moving. I had someone turning the steering wheel to reproduce it but no leaks or any binding that i could see. i didnt think to look under the dash but will double check. I thought i had a pretty good understanding of cars but this problem is really beyond me or anyone i know. So far no one has heard of this problem.
#4
Re: Brake pedal goes to floor after turning to full lock! (Slomo_civic)
Do you happen to have power steering on that car? I almost want to say check the big hose from the brake booster to the engine, but I don't see how that could do it. I can't see how it would do that when steering since the 2 aren't related except under the dash and at the kunckles.
Good luck, and let us know what the problem was.
Janos
Good luck, and let us know what the problem was.
Janos
#5
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Re: Brake pedal goes to floor after turning to full lock! (Janos Lin)
Thanks for bringing that up. My car has a manual rack so no power steering. I will check under the dash tomorrow night for anything out of the ordinary. I'm still racking my brain trying to figure out why the steering affects it. I'm sure this will eventually be figured out but, hopefully with the least amount of money spent. But when it does i will finally a make an important contribution to H-T.
#6
Honda-Tech Member
Re: Brake pedal goes to floor after turning to full lock! (Slomo_civic)
Just when you think you’ve heard everything! Wow I have nothing to offer. I know when I got my si the brakes would go to the floor when it was hot under the hood, it was the mc.
#7
Re: Brake pedal goes to floor after turning to full lock! (Slomo_civic)
Only thing I can think of right now, if there is no leaks, is maybe a bad wheel bearing causing pad knockback giving you a low petal.
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#9
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Re: Brake pedal goes to floor after turning to full lock! (94 Supra TT)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94 Supra TT »</TD></TR><TR><TD CLASS="quote">Only thing I can think of right now, if there is no leaks, is maybe a bad wheel bearing causing pad knockback giving you a low petal.</TD></TR></TABLE>
Well i have never heard of that but at this point i will try anything. I do have a bad wheel bearing on the passenger side but the thought never crossed my mind that it could be the problem. I will check that out tonight.
thanks
Well i have never heard of that but at this point i will try anything. I do have a bad wheel bearing on the passenger side but the thought never crossed my mind that it could be the problem. I will check that out tonight.
thanks
#10
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Re: Brake pedal goes to floor after turning to full lock! (fireant)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fireant »</TD></TR><TR><TD CLASS="quote">What about stretching the brake lines? What kind of brake line bracket/support do you have on your suspension?</TD></TR></TABLE>
this was my guess too, but after reading this...
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94 Supra TT »</TD></TR><TR><TD CLASS="quote">Only thing I can think of right now, if there is no leaks, is maybe a bad wheel bearing causing pad knockback giving you a low petal.</TD></TR></TABLE>
i think we have a winner.
this was my guess too, but after reading this...
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94 Supra TT »</TD></TR><TR><TD CLASS="quote">Only thing I can think of right now, if there is no leaks, is maybe a bad wheel bearing causing pad knockback giving you a low petal.</TD></TR></TABLE>
i think we have a winner.
#13
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i took it with my mechanic and he told me he was gonna blleed the whole system clutch and brakes ,he will charge me 50 and also he was gonna look under to c if something was missing
#17
Re: Brake pedal goes to floor after turning to full lock!
I have the same exact problem on my 1989 civic sedan!! It all started when I replaced my suspension with full body coilovers. The only thing I noticed was that on my coilovers they didnt have those two bolts where the brake line goes so ny brake lines are just hanging and now when i do a wide turn my brake pedal just goes to the floor untill I turn the wheel back and pump the brakes a bit.
My question is what should i do with my brake lines and how should i keep them in place ?
My question is what should i do with my brake lines and how should i keep them in place ?
#19
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Re: Brake pedal goes to floor after turning to full lock!
Ok guys instead of making a new thread I figured I would post here since in having a similar issue. I drive my car maybe twice a week to work. In the morning the brakes work fine and I have no issues. On the way home the pedal goes to the floor and I lose braking power. I just bleed all the lines and I don't see any leaks anywhere. Again it works fine for me drive to work but on the way home I have the brake to the floor issues. What could this be?
#20
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Re: Brake pedal goes to floor after turning to full lock!
Ok guys instead of making a new thread I figured I would post here since in having a similar issue. I drive my car maybe twice a week to work. In the morning the brakes work fine and I have no issues. On the way home the pedal goes to the floor and I lose braking power. I just bleed all the lines and I don't see any leaks anywhere. Again it works fine for me drive to work but on the way home I have the brake to the floor issues. What could this be?
Either way, you need to get that looked at. Brakes are kind of important!
#21
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Re: Brake pedal goes to floor after turning to full lock!
Yeah I was thinking maybe a small leak but how could it go back to normal the next day in the morning? It could definitely be the MC but I don't want to buy a new one unless I know that is the issue. Is there an easy way to check to make sure that is the problem for sure?
#22
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Re: Brake pedal goes to floor after turning to full lock!
Yeah I was thinking maybe a small leak but how could it go back to normal the next day in the morning? It could definitely be the MC but I don't want to buy a new one unless I know that is the issue. Is there an easy way to check to make sure that is the problem for sure?
Try this:
How to Test the Brake Master Cylinder | eHow
#23
Re: Brake pedal goes to floor after turning to full lock!
I'd put money on the lower suspension forks are on the wrong side! When going full lock it's pushing on the calipers which pushes the piston back in!
#24
Re: Brake pedal goes to floor after turning to full lock!
I know it's old, but just had this same problem with a student. He installed lowering struts on the wrong side. Banjo bolt on the calipers hitting the struts putting pressure on the caliper pushing it out on turns.
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