I have a 1994 Silverado and I replaced the A/C Evaporator Core. I had to remove the dash. This is my first time doing this and now the A/C controls for the High to Low and the Hot or Cold lights are all flashing. I believe I might have plugged in something wrong? I don't have a wiring diagram so I went by my "so called memory". Also the air does not blow through the top vents just the floor. Any diagnosis would be greatly appreciated for I do not want to remove the dash and the Evaporator Core again.
