So i put integra brakes on a 98 hatch. I replaced the master, booster, front, rear, and prop valve. I was bleeding the brakes and I think i got all the air out. The problem is that when I apply the brakes (with the car on) the pedal is soft and if i pump it the two right side brakes work, but the two left ones don't. It seems that two left calipers do not set. I see no leaks in the lines either. Any Ideas?

 

leaky caliper or brake line? have the bleeders in and tight? have the lines and fittings tight on the things you replaced?

how much brake fluid have you run through the system? i usually use a liter when i replace components... you know you got the air out...

 

Do you have ABS?

 

i checked all the lines and fittings ... ive gone through 3 almost 4 containers of brake fluid .. thats bleeding the calipers and the master

 

no there is no abs. i am using the gsr booster and 1inch master with the 4040 prop from a non abs integra

 

Are you sure you have the prop valve hooked up correctly? And did you bleed in the proper order?
Only reason I ask is b/c as I understand it the brakes are setup so that wheels diagonally opposite of each other are grouped together so that in a failure of one part of the braking system you will still have 2 wheels with stopping power that aren't on the same side of the car. Thats why the bleed order goes RearLeft, FrontRight, RearRight, FrontLeft. If only one side of your brakes are working thats counter to the design of the system.

 

This is true, thats y its strange u have brake on only one side so Id assume uv hooked the prop valve up incorrectly. Also did u bench bleed the master cylinder?

 

I think the prop valve has the incorrect lines running to to going to the calipers. The pedal being soft try vacuum or gravity bleeding. I am in a brake dilema right now myself. Hopefully I get it resolved this week.

 

i bench bled the the master. the bleeding order i did was the one suggested by the integra manual which is start with the front left and work clockwise. i also tried it from farthest to closest to the master. as for the prop valve i did it in the same order as the abs delete people have been doing to integras https://honda-tech.com/forums/acura-integra-6/how-do-abs-delete-94-integra-2490569/ (sorry i dont have a picture of my car)
also i kept bleeding it and now the two rear brakes work and now along with the front right. the front left still does not work. the part that makes me think i have a leak is that the other brakes catch but the pressure does not stay and the brakes disengage even with the pedal to the floor. i bled the lines more because i thought i had air bubbles but i keep getting fluid and no air coming out.

 

my roommate said that the line might be clogged, but would that set up the situation where the pedal looses pressure, or would it just mean that the brake with the clogged line might not work as fast?