71BB wiring disconnected?
Two relays disconnected. Wiring down and to the left.
The Anti Dieseling relay when turning the key off shot power to compressor to put drag on engine to help shut it down. Not to have run on.
The Blocking relay would kill power to the blower motor not to run after turning the key off. THAT is the proper name that GM has on diagram. Blocking relay.
Then when turning on AC , carb selenoid would kick in, increasing rpm so engine would handle extra load. If not would probably cause engine to stall at lower rpm, causing ac compressor probably to lock up.
Is the TCS Solenoid still there and mounted on the front of the carburetor?
Last edited by 71 Green 454; Aug 21, 2020 at 11:08 AM.









