Is it necessary to flush our ac system on our 1993 Saturn SL2 if the line that cracked was replaced? Would all the refrigerant be out?

You don't flush an AC system, you use a vacuum pump to evacuate all the air. Go to an auto shop that does AC work, I do as I don't have the equipment to do it right.

Would all of the old refrigerant come out automatically into the air when we replaced the one hose? Thanks Mimi

The shop will vacuum out any /if any is left in the system, If it broke/leaked before the repair, yes it went into the air. I know at least until 1992 it was still R12. I had a 1992 changed over to R34 and it cools or better said freezes you out I had waited thinking it would not be as good, even bought one of the last drops of R12, I had all new parts installed when changed over, by then it needed it.

Thanks Jim, can we do this ourselves? We are very capable and don't want to spend a lot of money on this car. Can we buy the evacuator ourselves? Mimi

Hi Jim, There are 2 different evac systems at harbor freight, one can pull down to 75 microns, the other to 22.5 microns. Is a micron equivalent to? you mentions inches. We need you! Mimi

So if 1 inch equals that many microns, then it sounds like nothing you can buy will work for a do it your selfer, unless we maybe get a micron gauge? Maybe that is a useful way to tell if we are vacuuming at the correct inches? What do you think? thanks for your efforts! Mimi

Thanks a lot for your help, Jim we really do appreciate it. I'm hoping I don't have to bother you any more about this, but you never know! Again, many thanks Mimi

Hi Jim, was wondering if you could tell me if you can replace the little feed valve ( looks like a tire gauge, where you hook up the Freon). When we take off the cap to put the feed tube on to fill it leaks alittle until you tighten it on. What do you think?

My husband just said before I looked to see if you got back to me " it's the schrader valve"! So what I think is happening is, we put too much in and the pressure was too high and it cause a leak. We learn something every day huh? Thank you Mimi

Hi Jim, We fixed the ac problem. Now we have a code 26 problem. Would it by chance be related to the ac we fixed? Also where are the solonoids located? thx Mimi

Thank you, Jim I tried but there is so much verbage that I just don't understand it all. Mimi

Thanks Jim I'll have my Jim check it out tomorrow, Will let you know, but I got to say the air is working really good, 40 degrees! Did notice that he had to goose the accelerator to get it to register or something like that. A mere idle wasn't doing it Mimi

Hi Jim, They only rank you as 6th, but they don't know you! Got a question for you. Would a malfunctioning PVC valve cause the code 26? thx Mimi

Well it turns out that the tubes that connect the valve were plastic and deteriorated so Jim replaced them with copper tubing, and he found out that the valve was not in place and oil was spraying out from one end or the other. The insulation on the underside of the hood was saturated with oil! We wondered why we were replacing oil every now and then but never any puddles or smoke anywhere. So he fixed all of it and we have not gotten any more readings! The valve was brand new!! So that's why we wondered if any of it was related to the code 26 default or problem, crazy huh?

Hi Jim, got a question for you. Remember I asked you what and where is the quad driver modular? Well we got the reading of 26 and though the ac is working great, no problems with the pcv valve, that's fine. But that quad driver modular is a real question mark. What are your thoughts on that little bugger? thx Mimi

Thanks Jim appreciate it. You've been very helpful. Here's a question for you. When we open up the driver door, the chime goes on and does not go off until you close it. Once in a blue moon it doesn't do it, but most all of the time it does, do you think that would have any relationship to the code 26? Because the key cylinder was changed out about 2 years ago and wonder if they miss wired it. Strange little car! Mimi

We will try that, thx You know the car runs great! Really no issues at all, although, the odometer is not working and hasn't for a long time, do you thank that would have anything to do with the code 26 issue? As always you've been so gracious. Mimi

Well we went out and put wd-40 in the ignition switch and after putting the key in and out the chime stopped, so we reset the fuse box and the code 26 did not come back, YET! But we still can't find out about the odometer, Even the Hanes book tells you nothing about the odometer, funny huh? Well we'll try to figure that out and let you know how we made out. Thanks again for all your knowledge, you're a good man. Mimi and JIm

We have some old cars and haven't had that problem, but this little bugger was my mother in laws car and the only thing left is the odometer and if the code 26 comes back than we'll just look into maybe the solenoids or something. Let you know , AGAIN, Mimi

Hi Jim , littlegreencar here. Got a question for you. Can we use our air compressor to find another leak in our AC system in our car? thx Mimi

Hi JIm, we used the Freon with dye, and that was expensive compared to regular Freon, but we thought we found it and did, but something went about 3 to 4 days later, so we'll try again, thanks so much! Mimi