93 CB7 brake pedal gets soft W/ AC on???
 

I have a 93 accord Lx non ABS . I swapped rear disc from a 93 with ABS. I haven't changed the prop valve yet. As a result I can lock up the front brakes very easily. Gotta change that valve soon!

So, I bought the car in winter, swapped the rear discs on with new pads, rotors and bled the brakes. But now that its summer. I use the A/C and It seems like if I,m barely holding the brakes down at a stop light the pedal sinks. Also it seems like I need to press the pedal down harder when I stop.

Re: 93 CB7 brake pedal gets soft W/ AC on???
 

bleed the brakes after the swap?

Re: 93 CB7 brake pedal gets soft W/ AC on???
 

Yes of course I did

Re: 93 CB7 brake pedal gets soft W/ AC on???
 

Check your master cylinder

Re: 93 CB7 brake pedal gets soft W/ AC on???
 

x2

Re: 93 CB7 brake pedal gets soft W/ AC on???
 

check that little valve between the motor n brake booster , that might be no good