Ford F150 Brakes

[Notorious0ne]

Hey guys,


So i have been working on my grandfathers 1997 ford f150 with a 4.6L V8 in it. He gave it to me and asked me to check out why the brakes were "soft" Well the front needed pads and rotors so i did that. The brakes were still soft so continued to bleed them. After that i replaced the master cylinder, brakes got better. Then the caliper on the passenger side decided to lock up. So i replaced both calipers on driver and passenger side bled them again. I had no peddle at all. So i figured maybe the master cylinder went bad, decided to replace it again. So after all of that i bled it again still no air. But now when the car is off the peddle will get harder after about 4 or 5 pumps. Then wait a second and it loses pressure again. I cannot find any leaks and at a complete loss.

So i have replaced both front calipers, rubber lines, master cylinder, and there is no more air coming out of the bleeder valves.


Any suggestions!?

Thanks
Mike

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