so I've got a 93 kzj78, for the past couple of days, whenever i turn on the ac there's a clicking sound in the left side of the dashboard, its sounds like some kind of fan is lightly hitting something, today i got in and turned on my ac and nothing happened, no ac or heat, and the fan wouldn't even start. checked under the hood to see if any rats chewed wires, and realized that my coolant levels are extremely low. but im guessing that doesn't have anything to do with the ac problem.