i have a 90 civic hatch and i took the rear disc off of a 93 acura integra. Now that i have all that done i had no pressure and i bled the brakes and i got some pressure but when i started the car all the pressure went away so then i replaced master cylinder, power brake unit, pads. rotors. then i bled the brakes again and the same thing happened i got pressure and then i started the car and lot all the pressure. ive checked for leaks and there are none i dont know what else to do.

 

make sure you bleed with the car on

 

i dont see what bellding with te car on would do bleeding just gets air out of the lines u dont get air in the lines from turning the car on the only place the u get air from the motor is in the power brake unit

 

take the top off the master cylinder so the air has someplace to escape to.

 

ive already done that doesnt work

 

sorry, not sure good luck! <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16hybridsol &raquo;</TD></TR><TR><TD CLASS="quote">i have a 90 civic hatch and i took the rear disc off of a 93 acura integra. Now that i have all that done i had no pressure and i bled the brakes and i got some pressure but when i started the car all the pressure went away so then i replaced master cylinder, power brake unit, pads. rotors. then i bled the brakes again and the same thing happened i got pressure and then i started the car and lot all the pressure. ive checked for leaks and there are none i dont know what else to do.</TD></TR></TABLE>