Passenger Front caliper was seizing and once stopped for 5 + minutes brakes go back to normal. So piston/pistons retract at much slower rate.
I did the following:

1) Replaced the caliper: It came back a few days or so later so looks like that didn't do it.
2) I blamed ABS module and disconnected it. It persisted to happen.
3) I bled the system and it still seems to freeze up on me. Other front might slightly bind up as well, but the passenger might be overpowering it so I can't tell for sure.
4) Re-Lubed slide pins 3 times

With those steps complete what does that lead to?


A) Kink in a line?
B) Proportioning Valve?
C) Master Cylinder?
D) Is there a Brake Slave Cylinder?


As you can tell I did the legwork and searching. Just need you experienced folks to chime in to narrow down the issue.

Thank You all a bunch as always.

 

If you still have stock rubber brake hoses on the car, change them. They can act as check valves if the inner liner starts to collapse.

You can apply the brakes, and the fluid pressure stays on and slowly bleeds back over time, if they get bad enough they won't release any pressure at all.

I've also seen bad hoses not allow any pressure to the affected brake, depending on which way the liner fails.

To check this, apply the brakes VERY hard. Go to the sticking brake, and open the bleeder, does it release instantly?

 

You are probably right. I'll order those parts tonight.

 

Could also be compensating port in Master Cylinder. It may be that the master piston isn't moving properly or the comp port is clogged.
I've seen it before.
Good luck.

 

did u replaced the caliper with a new one?

I had a huge problem with seized brakes (firs the front right then the rear left) and I order an OEM caliper rebuild kit (it has all the rubber seals, grease etc) and i never had the same problem again for the past 2 years.

as the other guys said check your master cylinder (maybe rust inside or vacuum issues or a gasket) and brake lines and also maybe for leaks from any point (from the cylinder to the brake lines)

ps..excuse my English