I could really use some advice here please. So I have a 2012 Chevy Impala LT FE2 suspension. I have replaced the following on both front axels: steering knuckles, lower ball joints, wheel hub assembly, wire harness from speed sensor to main loom, sway bar link bushings, inner & outer tie rods with new bellows, calipers, high performance rotors and brake pads. I blead the breaks multiple times and was thinking I was missing air because with the car off it builds a little pressure but then as soon as I start the car the brake pedal falls to floor when I press on it. So I was assuming that it was the diaphragm inside the break booster but once I took the master cylinder off I don't see the diaphragm like it's on like a 2011 model. Does anybody know anything about this if there's something else I'm not thinking about or is there a check valve that I can check. I went on the Chilton's website and ordered a book but they messed my payment up and I can't find a repair manual for anything.
Here's some pictures after I've removed the master cylinder I think on like a 2011 there's a diaphragm in that empty space there on the brake booster I was thinking it was that that was leaking but I can kind of hear some air when I push the brake when I had it all before I took it apart and is there something I'm missing or does anyone have a repair manual for a 12 Impala LT? Thank you for any help you all can provide.
Here's some pictures after I've removed the master cylinder I think on like a 2011 there's a diaphragm in that empty space there on the brake booster I was thinking it was that that was leaking but I can kind of hear some air when I push the brake when I had it all before I took it apart and is there something I'm missing or does anyone have a repair manual for a 12 Impala LT? Thank you for any help you all can provide.