i have 98 f150 4x4
my dad changed my pads and rotors on the way home the front brakes started sticking so i limped it home and changed the front calipers and proceded to bleed the brakes the pedal went to the floor i tried bleeding rears and front in sequence to no avail the pedal goes right to the floor
so i changed the master cylinder out and rebled the brakes in sequence
still same issue also i checked the brake lights and they arent working and it wont shift out of park either

need some help

 

Take it to a professional. Sounds like you are having a hard time diagnosing the issue.

 

won't move i cant get it out of park

was hoping to find an answer here

not sure the truck is worth taking to the dealer

 

Your brake switch is not working. It's either a faulty unit itself or a fuse is blown.

Brake-shift Interlock: This vehicle is equipped with a brake-shift interlock feature that prevents the gearshift lever from being moved from P (Park) when the ignition is in the ON position unless the brake pedal is depressed. If you cannot move the gearshift lever out of P (Park) with the ignition in the ON position and the brake pedal depressed: 1) Apply the parking brake, turn the ignition key to LOCK, then remove the key. 2) Insert the key and turn it to OFF. Apply the brake pedal and shift to neutral.

 

that might fix the lights and park issue but wont help the no pedal
i assume there is a pressure switch in the MC that takes care of the interupt

 

Stupid question, but did you bench bleed the MC?

 

yeah

 

Have you tried bleeding with a vacuum pump? Sounds like you have a lot of air in the line. Only other option is have it towed & get it power bled.

 

So you have new front pads, rotors, calipers, and master cylinder. My suggestion is to get a quart of brake fluid and a Lisle $15 bleeder bottle with check valve and hose from xyz auto parts store and bleed the system again with the engine running for the vacuum boost. I suspect you let the reservoir run low on fluid or didn't bleed enough air out. Don't let the reservoir run low. (Don't reuse old fluid either.)
Don't worry about the rear just thoroughly bleed the front. Pump 3 times and hold, crack the bleeder, let open for 3 seconds, close the bleeder, and repeat.
You should also look at the front brake hoses. Old ones collapse inside and restrict brake fluid flow.

 

been through qt and a half bleeding already never let it run dry even with air in the line there would be some pedal