I have a 1995 Chev GEOS metro which I have replaced the caliper and the master cylinder. The right front brake will lockup and the only way to release it is to bleed that caliper. It has new brake shoes and caliper pins. The master cylinder has 3 lines on it.
1: going to the right front wheel.
2: going to a unit on the firewall.
3: coming from a unit on the firewall that looks like it is feeding the right front brake to #1.
firewall distribution block> > (Master Cylinder)< < right front caliper
This car doesn't have anti-lock brakes and I don't know the function of the unit on the firewall. I assume it's a distribution valve block of some sort. It has no electronic leads but has a cap on top the look like it could have a some sort of component under it. I'm wondering what is locking only the right front brake and what is the unit on the firewall.