Hey guys I am having a problem with my 2003 v6. The front driver side caliper locked up so I replaced the calipers and rotors on both sides up front with new pads. Bleed brakes and test drove and now both calipers are locked up. Thought it was just a bad a caliper but after replacing them the problem still exsits. Any ideas of what it could be? I was thinking the master cylinder but I wanted to get other opinions before I bought more parts and put them on. Thanks in advance.

 

Master cylinder or proportioning valve issues.

 

how did the rubber brake lines look? sometimes they collapse and the brakes stick, or are the brakes locked as in the car wont move?

 

The brake lines are new and I just put on a new master cylinder and its still do that same problem.

 

then check the proportioning valve