Hi all Ive got my 93 ex with Ac but the ac is not as cold as it should be at all and takes for ever to get semi cold. Compresor is working can hear it and feel it when I drive. Just had the lines vaccumed out when I converted it from R12 . Has a fresh recharge in it. but still takes for ever to get cold. First it was the Ac fan But I all ready replaced that. Just cant think of what it could be???
Starting to piss me Off!!

 

takes forever to get cold? Or blows semi cold? My quickest guess without going into detail would be evaporator. When you had it vaccumed did it hold vaccum? How much did you charge back into your system? What are your pressure readings? Did you happen to add dye to the system when you charged and check for leaks? Does the ac compressor drag when it comes on or stops? There is alot questions that have to answered first before anyone could tell you what the problem is from what you said.

 

I am having almost the same exact problems, except for my a/c does not get cold when it is hot outside, no matter how long it runs, but when it is dark outside, or the ambient temperature outside is cooler, the car can get pretty cold. Why would this be? Also, if I am driving and I cut it on at a high speed, it kind of drops rpms, kinda like you said it drags I think.. Any ideas?

 

Could be yes, the clutch is improperly adjusted or clutch and feild coil. Could also be that the evaporator is clogged and or dirty causing the lack in performance. Alot though plays in ac performance. Not having interior or not having tented windows no insulator or heatsheild on the exhaust system and the heat coming through the floorboard. Alot has to consider in how cold "your vechiles ac performance". Not being able to look at the vehcile and having the right equipment this is all a guess. A good guess. cause iam that damn good.

but don't go buy a 300 evaporator and someone looks at it and says your condensor is bowed out or you have your civic gutted. Cause without the proper diagnoise this is just a idea of what it could be. I know this sounds stupid but you know what i mean.

 

Thats funny cause that is right about what mine does. Thats crazy at night it blows cold. Hmmm.. I dont even know where to start looking. I know I have a full charge in my system so it must be something Else.

 

It blows semi cold. (if its hot out I still sweat like crazy). Yes when i had it vaccumed out it held the vaccum. The shop put a full charge back into the system. dont know the pressure readings (dont have a gauge). They tested for leaks and there was none. Ac compressor doesnt drag. It just turns on. Could the evaporator be clogged???? And how do I go about replaceing it??

 

good questions and answers.

It could also be just a common problem with the small condensor. Not more surface area.

 

some things to consider is the evaportor only because alot of your older systems don't have ac filters and airborne debris like lint, hair and other contaiminates gets into the evap. case. Which would cause poor ac performance. Also a cracked evaporator case would case poor ac performance because it will reduce the cooling capiciaty. Excessive engine heat also through the firewall can cause poor ac performance. There really isn't any way to proper clean a evaporator without removing it out of the case.

Another thing to consider is the dryier. The drier is like a filter system for your a/c. It carries moisture aborbing material at the bottom of the reciever or drier. (Same function) It basically removes any moisture in the lines and prevents it from entering the compressor which can damage the compressor. Thats basically the job of the drier. If the drier was clogged though it would cause ice or frost to build up at the outlet.

 

are you meaning a biger condensor? The job of the condensor is to condense or liquefy the high pressure or high temp. vapor from the compressor. If you used a bigger condensor more then what is adaquate for the system you will only make the ac not work at all or cause major problems. Why? Think how the condensor works. Its going to liquefy the high pressure vapor from a vapor) to a liquid form. Which the vapor of course starts from the top of the condensor and passes down through the condesor coils as it flows across the condensor coil fins, it changes to a high pressure warm liquid. This liquid goes from the bottom of the condensor through the line to the drier. The condensor is a heat exchanger! I don't see why his ac system wouldn't perform adaquate for this complete size of the system.