Another A/C Problem!!!!

[vettsnyder]

Ok, I did a little research here, but I would like to see what a few people think. About 2 years ago my a/c stopped working and the light on my dash started flashing. So I read the codes from the computer and came up with a low freon reading. I had it recharged and it seemed fine for the rest of the summer. I don't drive the car very much so last year I pulled it out and the a/c would not work again. Well, I had it recharged again, only this time it was gone by the next morning. So I decided to give up on it for the rest of the year. Well, my daily car's a/c just went out and it is way to expensive to fix, probably worth more than the car. So I went to look at the vette again. I guess I forgot to mention it is a 93. Anyway, now the compressor will not cycle on, even after I disconnect the battery for a while, the light on the air controls is not flashing at me and when I do turn on the air it just blows at my feet and windshield and it is very warm. So, I'm thinking I might have multiple problems or one I just haven't run across yet. Does anyone have any ideas?????

 

[bill5674]

Not trying to be a smart ass but if I read this right you parked it with a leak and it doen`t work? Compressor will not come on unless there is freon in the system.Sounds like leak got worse over time ,fix leak, charge system. Only problem it sounds like is the lack of freon that will cause your other problems

 

[vettsnyder]

I guess my only probem would be to get the compressor to come on. It is my understanding that the compressor must be running to charge the system. Anyway, was just wondering if there was something else I was missing.

Thanks,
ems

 

[samborskij]

as bill5674 said, charge the system and the compressor will more than likely start working. Most A/C systems have an inline pressure switch. No pressure, No work.

 

[Robertwav1]

You got it right. Freon above all other gases is one of the hardest to contain. All cars that I ever played with are "open drive centrifical pumps" (compressor). The complex shaft seal is responsible for containing these tiny molecular rascals and usually does a good job. However, the oil in the system mixes very well with the gas which in turn lubricates the shaft seal and causes it to swell slightly, tightening up the seal on the shaft. Problem though, if the car sits and the pump don't turn, the shaft don't get lubed. Not saying there is no other leak in the system but this is the most common that I find. Sometimes the seal needs to be replaced, sometimes not. I agree with the other post here.....find the leak, charge it and the other symtoms may clear.

 

[vettsnyder]

Thanks everyone, I will give it a try.

Thanks,
ems