THEY TURNED ON AND THE BRAKES ARE REALLY MUSHY. SO I BLED THEM. IT WORKED FOR A BLOCK OR TWO. SO I THEN DECIDED TO REPLACE THE MASTER CYLINDER. MISTAKE? BECAUSE NOTHING WAS DIFFERENT. I BLED ONCE MORE JUST TO SEE STILL NOTHING. NOW I HAVE FOUND THIS FORUM AND HAVE BEEN ABLE TO READ ABOUT THIS PROBLEM. I DID WHAT DISCO MIKE SAID AND SLAMMED THE BRAKES ON GRAVEL AND IT DIDN'T SHUTTER GOING FORWARD BUT IT DID A LITTLE IN REVERSE. I DON'T KNOW WHAT TO DO NOW. ANY HELP?

 

Stop throw money at your truck and take it to a small shop, where they can read your codes and give you an estimate for the needed repairs. Get back to us with that so we can make sure your are not getting screwed.