Dragging Brake??

[Michael Williams]

Hi everyone,
I got through the rotors and pads finally yesterday. Thanks to everyone
for their advice. When I was replacing everything I noticed a problem on
the left front brake. It had worn down to the brake pad sensor but the
right side brake was fine. It still had quite a bit of pad left. In
pulling the pads out the piston from the left caliper had popped out
about 2" (estimated) whereas the right caliper piston came out only
about 3/4" (again an estimate). I could see why the left wore down so
fast but now I am left with WHY? I checked the archives for "Dragging
brakes" but it seems related to the MC but if its that then it seems
that either all 4 brakes would drag or at least the front or rears. I
know there is a proportioning valve for front to rear bias but is there
a valve for left and right bias?? For those who don't know the car I'm
talking about, its an 89 100 with ABS
Thanks
Mike Williams
East Coast Mike