first of all I noticed one day the pedal was extremely soft and checked front brakes they needed replacing, new calipers rotors and pads then i bled both front calipers, the back drums did not work what so ever so I am in the process of replacing them (waiting for shoes) the nipples were extremely rusted so i replaced the one (the other broke off inside, any ideas on how to get that out would be appreciated lol) barely any fluid comes out of it when i attempt to bleed the brakes why is this? i am stuck between master cylinder,flex tube, extremely large air bubble.... or what ever else could cause this, any help is greatly appreciated.

 

If it was me I would blow line out fill master bleed and if that don't work its master

 

Do you have a pneumatic bleeder?
$25 at harbor freight.
Also there are a couple different meathods to bleeding
What is your meathod?
Make sure you don't site there and pump the brake a bunch before bleeding.
You end up turning a couple large air bubbles into a thousand.
1st, you get better pressure if you press down the brake pedal THEN open the nipple,
Close niple then release brake.

 

Best way I found to bleed is a bottle a hose and fluid
get hose that fits on bleeder fill bottle up with brake fluid put hose in bottle and pump till u see no bubbles

 

That's the way I did it but I haven't had much fluid come out its weird cause when Ive done it in the past I've had plenty come out so it makes me think there's something bigger, most likely in my mind the master

 

Take one line off at a time blow it out with air then redo its free could be dirt or rust