why putting on my brakes it would pull to the right bad, replaced te caliper and now after bleeding the brakes the brakes work for a while then no brake hardly and the brake and apps lights will come on, then after the truck being off then starting the lights off and brakes work for a while and then the same thing again....Please help....wondering if I needed to replace other caliper on the left and or master cylender? Thanks JD

 

posible colasped brake hose or a bad hydraboost. im not sure why the light would come on

 

Is it pulling again, or there is hardly any braking force at all?

As for the pulling, is it a gradual pull, or more so it wants to yank the steering wheel out of your hands?

 

What year is your truck?? Vacumn boost or hydroboost brake system, Rwal system or ABS system? What code? Since it resets with key off it's not a hard code and you have a pulling problem I would guess your truck is four wheel drive since you have a pulling problem. Most likely 2500Ram 1998 or 1999.