Low pressure in brake pedal
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Three Wheelin'
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Joined: Jul 2009
Posts: 1,260
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From: Rockville, MD
Low pressure in brake pedal
So I push the brake pedal down and at around 50% I start to feel the brakes kick in. Last weekend I bleed the brakes and topped off the brake fluid reservoir. But it only improved very slightly. I figured there was some air in the line since the fluid was a littke bit below the max limit. My question is do I need to remove all of the old fluid from the lines and reservoir and what is the best way to go about it.
First, my suggestion would be to rebleed the lines, and of course, get all of the old fluid out. You only need 2 bottles of fluid to do this. I think that would fix your issue.
Although you can do this yourself, it is much easier to properly bleed your brakes if you have someone else there to help you do it. If you don't want to do it yourself, go to an indy shop and pay for it.
Although you can do this yourself, it is much easier to properly bleed your brakes if you have someone else there to help you do it. If you don't want to do it yourself, go to an indy shop and pay for it.
the overexplainer
Joined: Feb 2011
Posts: 3,287
Likes: 385
From: OC, CA
just a heads up, it's pretty much impossible to get all of the old fluid out with just 2 bottles. I went from a disgusting black to a shade of amber. Used both bottles, have a bit left in the 2nd for emergencies and is in my trunk. didnt feel comfortable bleeding it with barely any fluid left in the bottle.
You'll get a good amount of new fluid in mixed with some of the old, but it's a lot better than just running dirty old fluid. Good luck.
You'll get a good amount of new fluid in mixed with some of the old, but it's a lot better than just running dirty old fluid. Good luck.
Thread Starter
Three Wheelin'
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Joined: Jul 2009
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From: Rockville, MD
So i bought the 1qt of brake fluid from acura and went about bleeding the brakes. Just so I have this right this is what I did, take off the front drivers' side wheel then open the nipple have someone in the car push down on the pedal then close nipple and repeat. I did this to the front drivers side, front pass side, rear drivers side, then rear pass side in that order.
The pedal feel has not changed much, the color of the fluid in the reservoir went from black to light clear gray.
what am I doing wrong?
The pedal feel has not changed much, the color of the fluid in the reservoir went from black to light clear gray.
what am I doing wrong?
Race Director
Joined: Dec 2003
Posts: 12,521
Likes: 1,824
From: MAGA country
So i bought the 1qt of brake fluid from acura and went about bleeding the brakes. Just so I have this right this is what I did, take off the front drivers' side wheel then open the nipple have someone in the car push down on the pedal then close nipple and repeat. I did this to the front drivers side, front pass side, rear drivers side, then rear pass side in that order.
The pedal feel has not changed much, the color of the fluid in the reservoir went from black to light clear gray.
what am I doing wrong?
The pedal feel has not changed much, the color of the fluid in the reservoir went from black to light clear gray.
what am I doing wrong?
https://acurazine.com/forums/3g-tl-2004-2008-93/brake-fluid-change-696162/
Last edited by nfnsquared; Mar 29, 2011 at 11:27 PM.
Three Wheelin'
Joined: Mar 2010
Posts: 1,785
Likes: 96
So i bought the 1qt of brake fluid from acura and went about bleeding the brakes. Just so I have this right this is what I did, take off the front drivers' side wheel then open the nipple have someone in the car push down on the pedal then close nipple and repeat. I did this to the front drivers side, front pass side, rear drivers side, then rear pass side in that order.
The pedal feel has not changed much, the color of the fluid in the reservoir went from black to light clear gray.
what am I doing wrong?
The pedal feel has not changed much, the color of the fluid in the reservoir went from black to light clear gray.
what am I doing wrong?
What kind of brake fluid are you using?
Trending Topics
get this checked... i had this problem a few yrs ago where the VSA was faulty and pumping air into the brake lines... it was covered under warranty... Blakura even crashed his car because of this problem when his brakes suddenly locked up mid turn...
Suzuka Master
Joined: Sep 2006
Posts: 9,863
Likes: 439
First, my suggestion would be to rebleed the lines, and of course, get all of the old fluid out. You only need 2 bottles of fluid to do this. I think that would fix your issue.
Although you can do this yourself, it is much easier to properly bleed your brakes if you have someone else there to help you do it. If you don't want to do it yourself, go to an indy shop and pay for it.
Although you can do this yourself, it is much easier to properly bleed your brakes if you have someone else there to help you do it. If you don't want to do it yourself, go to an indy shop and pay for it.
you can buy a plastic weed killer sprayer and a generic brake reservoir cap and make your own pressurized bleeder.
1. drill hole in side of container near the bottom
2. thread in a brass hose fitting
3. do the same to the cap for the brake fluid drill a hole and add a brass hose fitting
4. run hose from sprayer to cap
then you can add brake fluid to that screw the cap onto the fluid reservoir and pump it up go around to each caliper and open the bleeder until fresh fluid comes out.
Advanced
Joined: Oct 2017
Posts: 67
Likes: 8
From: Milwaukee
Advanced
Joined: Oct 2017
Posts: 67
Likes: 8
From: Milwaukee
Advanced
Joined: Oct 2017
Posts: 67
Likes: 8
From: Milwaukee
Modulator was the last resort. Brakes were replaced recently along with the master cylinder. No leaks
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