Hello I am dumbfounded so my Ram the brake is slow to return I've tried possibly everything I could think of replaced booster master cylinder front supply lines to calipers bled them a million times and it still returns slow to the point at a stop light I release it and it takes a good 3 to 5 Seconds before It reaches the top and brake lights go out. I can feel after I release it and step on the gas it's restricting the truck from trying to move. Any advice ideas would be much appreciated.

 

Sounds like an issue with the pedal, What does it do when the truck is off(no vac in the booster) will it return slow?