Rep Power: 0

Hey all, I appreciate any help you can give. I'm not much of a car guy, and there seems to be so many possible answers to this question. I'm lost.

On hot days, like this past week when it's been 90+, my A/C will work for about 7-8 minutes, then it will start blowing hot air, so I'll shut it off. After about 5 minutes, I can turn it back on and it will be as cold as ever, but it only lasts another 5 minutes before it's back to blowing warm air.

Can anyone help me?
Thanks!!!

 
Rep Power: 233

Sounds like you're low on refrigerant. Have the A/C guy vac and re-fill the system.

 
Rep Power: 0

You think that's it, huh? I certainly hope you're right. My understanding is that I can do that myself fairly easily...is that correct?

 
Rep Power: 233

Sure but, you have no way to measure exactly how much refrigerant you're putting in when working with 12oz bottles. Chances are you need a bottle and a half. How are you going to meter the second bottle when what you have just purges the entire bottle in about half a second. I wouldn't recommend doing it if you don't know exactly what you're doing. Just go pay $50 to have the A/C guy vac and re-fill the system.

 
Rep Power: 0

hi do you still have the problem ?

 
Rep Power: 0

Hi, just in case... check the a/c radiator fan, if it is functioning unproperly it'll stop and start randomly, when that happens the whole a/c system fails and... voila!! hot air right in your face mr. not to mention that the a/c compressor days are counted off so.... a couple smashes with a hammer and a screwdriver may help for a while but the best is to replace the fan if you can buy it separatedly.. i tell you, that problem is a silent enemy of your a/c compressor and sometimes is not that obvious so when you look inside the hood it seems to be spinning nice and fast but it isn't... a question: when the hot air blows, have you noticed a lowered rpm's just for a second ? if so, i'm rigth, if not.. well, i hope you have found the solution

greetings

 
Rep Power: 0

Not only the a/c fan, but if you are a little low on coolant in the radiator, when the car starts to get hot the cp with kill the compressor to take that load off the motor. I noticed this on my 97 civic, added water and works fine

 
Rep Power: 0

Thanks guys. I do still have the problem - been too busy to do anything about it. Xtian29, no, no lowered RPM's when the hot air blows...sounds like that's good news. This has only been a problem on really hot days, which I haven't seen many of yet. This week may motivate me to get this figured out... I'll post again after I take some action and see if my problem is solved.