I'm in the middle of doing a brake job on my 2001 F150 w/ 117,000 miles. I removed my all 4 of my calipers and rotors. I cleaned the calipers and painted them and then installed new Wagner Thremoquiet brake pads and Wearever brake rotors all the way around. Then I went to bleed the whole system but for the some reason the pedal was incredibley spongey and would go all the way to the floor. So I replaced my master cylinder and followed the right steps to bench bleed it before installing. Still had a spongey pedal and a hissing type noise coming from that area so I replaced the brake booster and STILL have the same issue. I'm not sure where to go next. Caliper rebuilds? New hoses? any insight would help. I replaced 2 leaky bleeders and they still are leaking, would the caliper rebuild fix this or is a new caliper in line?
Thanks in advance guys!

 

Did you start up the truck and try the brakes??? Its not unusual for the pedal to be spongey after a brake job. Only after you start and drive truck,, and the brakes are still not back to normal then start looking at other things. good luck

 

Yeah i have it on jack stands and I started it and put it in gear and it still stays spongey. I feel safe driving around with the way my brakes are now haha

 

Are the calipers all installed with the bleeders at the top? if they are on the bottom, you have the left and right sides swiched and you will never get all the air out during a bleed.