hardmanpr

I have a Scion xB 2005. the front driver side caliper (wheel) is locked up. this side do not release the pressure.
I replace the caliper and the hose, but the problem continue.
another test that I made ,I switch the two front output lines from the ABS unit to know if the problem moved to the right side but the problem do not moved the problem continue on the driver side. I think maybe the problem is the Master Cylinder.

I want to know if someone have an idea of what happen or another think to test
thanks in advance att Raul

herbn44

Did you try to give the hub a spin while the caliper was off? Perhaps it's not a brake issue if you were able to remove the caliper easily.

hardmanpr

yes the hub moving freely without the hub. i replace the master cylinder but the problem continue. another think the driver side wheel is lock and the opposite rear wheel is locked too.
I try to replace the ABS

RichBinAZ

The metal tubing for that circuit might be rusted out. Can you bleed fluid out of the front left caliper or right rear drum?