Bleeding issues

[wranglertj]

Hey guys,

need a few hints or tips.
I installed the teraflex big brake package from DBOR and whilst great i have had some issues in bleeding the system as the brake pedal is still very spongey.
I bled the incoming and outgoing lines to the ABS module to make sure there was no air bubbles in there and bled all 4 brakes. Went around each wheel 5 times and got some air bubbles out but in the end i couldnt get anymore (doesnt mean there is none left i guess).
FYI i also installed the larger master cylinder also so basically there was very little fluid left in the lines at all

Any thoughts why this may not be bleeding up?

[Wrangel]

Keep bleeding one till there's no bubbles if that takes what seems like ages there is air getting in somewhere, probably the master cylinder if you swapped it.

[wranglertj]

how patient do i need to be?, went through over a litre of brake fluid just bleeding the system, i guess i thought this as excessive. Maybe i do need more patience and keep going but in end it seemed to be running pretty consistently without air bubbles but obviously not

[Wrangel]

I'm assuming that's breaks would be all the same. So air getting in is the main cause for the problem but having said that on the bottle it says not to expose to air I have always done one at a time with a top up in-between and had the lid on the master for most of it. Not sure if that matters thou...

[Wrangel]

I guess see what the other guys think, no doubt there will be more comments soon.

[MRGC]

Originally Posted by wranglertj

how patient do i need to be?, went through over a litre of brake fluid just bleeding the system, i guess i thought this as excessive. Maybe i do need more patience and keep going but in end it seemed to be running pretty consistently without air bubbles but obviously not

Does the brake pedal evently go to the floor when the engine is on?

Because I have the same problem swapped the master cylinder and bleed the brakes also used roughly 1 litre, someone told me I had to bleed the ABS as well which gets done via the diagnostics.

[wranglertj]

Originally Posted by MRGC

Does the brake pedal evently go to the floor when the engine is on?

Because I have the same problem swapped the master cylinder and bleed the brakes also used roughly 1 litre, someone told me I had to bleed the ABS as well which gets done via the diagnostics.

yeah eventually if i push the brake pedal hard enough. I could take it for a drive and get around O.K but if i had to break hard its stops but unlikely to be able to lock it up as the pedal hits the floor first.
I did bleed the ABS manually and appeared to be fine and getting good flow without any air in there but problem is bleeding modern cars with ABS can create a massive headache