Another AC thread sorry 94 LT1
Instructor
Joined: Mar 2010
Posts: 135
Likes: 1
If it was me I would get dry nitrogen and and my ohm meter and pump system up with dry nitrogen and see if low pressure switch closes to see if switch is working properly. Make sure you rent or use a vacuum pump to evacuate system before adding refrigerant some people called it freon and that like call all colas COKE as freon is just a trade name. If you don't use a vacuum pump then your high pressure switch will open as the compressor is only designed to pump refrigerant not air
