WaterH
Well-known member
Ok, this is somewhat embarrassing because I'm somewhat of an AC expert. I maintain walkin freezers and coolers at our restaurant. Also the AC there. I have all the good quality tools and equipment for working on refrigeration stuff. I have an EPA license to buy freon. Most of my experience is not on auto, but the theory is the same.
Im working on my 90' Bronco. It was originally R12 converted to 134A years ago. It works, but I've never really been happy with it. Recently something went through the grill and put a hole in my condenser. So I got a new condenser, dryer and orface. Blew everything out, put a good vacuum on it and refilled with new freon.
It works, but I'm not happy with it. We have a newish Vette and the temp at the vent is 48 degrees in a matter of seconds after startup. (95 outside) It gets colder if you drive down the road. We have a beater PT Crusier that will blow 52 degrees pretty quick. My Bronco doesn't go below 60 no matter what. It does blow lots of 60 degree air and it will cool the truck after 5-10 minutes, but why so warm?
I kind of determined to get it working better. I pointed a lazor temp at the receiver/dryer and got 52 degrees. That reciecer is after the evaporator. So why is it colder than the vent air? I pulled the evaporator and cleaned the fins. It wasn't really dirty, but I thought it might help. No joy.
At this point, I'm thinking of replacing the evaporator. Right now everything is new except the evaporator and the compressor. The gauges show the compressor is working, so I don't really see how it could be the problem. When I google evaporator problems, all I get is leaks. Mines not leaking. Have any of you had one clogg up where it doesn't work?
Am I missing something else?
Im working on my 90' Bronco. It was originally R12 converted to 134A years ago. It works, but I've never really been happy with it. Recently something went through the grill and put a hole in my condenser. So I got a new condenser, dryer and orface. Blew everything out, put a good vacuum on it and refilled with new freon.
It works, but I'm not happy with it. We have a newish Vette and the temp at the vent is 48 degrees in a matter of seconds after startup. (95 outside) It gets colder if you drive down the road. We have a beater PT Crusier that will blow 52 degrees pretty quick. My Bronco doesn't go below 60 no matter what. It does blow lots of 60 degree air and it will cool the truck after 5-10 minutes, but why so warm?
I kind of determined to get it working better. I pointed a lazor temp at the receiver/dryer and got 52 degrees. That reciecer is after the evaporator. So why is it colder than the vent air? I pulled the evaporator and cleaned the fins. It wasn't really dirty, but I thought it might help. No joy.
At this point, I'm thinking of replacing the evaporator. Right now everything is new except the evaporator and the compressor. The gauges show the compressor is working, so I don't really see how it could be the problem. When I google evaporator problems, all I get is leaks. Mines not leaking. Have any of you had one clogg up where it doesn't work?
Am I missing something else?