Hi all,
1997 R33 GTST with ABS
Have a question regarding brake bleeding as this is the first time ive attempted it. Changed over my rotors, pads and to braided lines all in one hit and am at the stage of bleeding the brakes and have noticed that there is now a hiss sound coming from the brake pedal/engine bay area (as well as not firm) after the first bleeding process (1L of fluid added give or take, some may have recirculated into the bottle). Certinatly got air in the lines during the changeover process.
Seems like there are no bubbles coming from the bleeding nipples but definatly have a spongey feel to the pedal and definatly isnt drivable. When bleeding, it builds up plenty of pressure and as the nipple is release, with my foot down on the brake pedal, it continues a slight bit more before re pumping
In terms of the ABS system, is there something that should have been done prior to bleeding, like disconnecting it ? Is the hiss noise, that isnt something I noticed prior a damaged part or is that the air moving through the lines somewhere near the ABS ? Is this just a case of needing to do more bleeding ?
Brakes were working fine prior to this (other than being worn) and have checked everything ive touched in regards to being tight. Rolled the car back and fourth and the pads do grab (but with the foot all the way down on the brake)
Thanks