i was able to replace the bad heater core without unhooking the ac lines, was a PITA, but i got it installed and everything put back in place But now my ac clutch wont engage. i tried jumping the low pressure switch and nothing happened. as of now it is pouring rain so i can't mess with it till the rain clears up.

what should i check for? fuse, relay, anything under/or behind the dash that might have accidentally been unhooked? i had the ac converted and recharged just a few month ago and they added a green dye. i did not see, hear, or smell any leaks during the heater core job.

Thanks for any help.

 

i replaced the ac clutch relay and still not working i just don't understand. the ac worked great before the heater core job! my test light is showing power at the low pressure switch.

 

had a guy from a diff forum help me out. somehow i overlooked the condenser temp switch.

 

Thanks for posting your fix.