Hard brakes on 89 Sedandevile
 

Hi,
Need'n some help on a Caddy project. Pappy's.
I have hard brakes and the brake warning light stays on. The right rear wheel cylinder was froze up so I replaced it, and the left rear as well. Still hard brakes.
The pump motor stays running with the ignition switch on. I pulled the pressure switch out,turned on the ign switch and also pumped the brake a coupla times. Nothing happened with the switch. I don't know if this works as a test or not, but thought I would see what happens. How would I test the switch? I'm thinking ac***ulator or switch? I also pulled the E brake cables back out in the drums,taking up slack, trying to get the red brake warning light to go off.
Any opinions or answers?

Sorry for the double post. Can't figure how to delete it.