1. My a/c has always blown a little warmer than it should ( about 2years). So last week I decided to add some refrigerant (R134). The a/c blew cold for a couple of days then back to just cool. I then added more refrigerant and now the a/c blow hot with no cooling at all.
2. An a/c tech checked it out with a gauge, and the low side looked fine, but the high side was going crazy (up and down). He then released some refrigerant from the system, but the a/c still blew hot and I was told I need a new compressor.
3. Now after driving around for a day I realized my fans were not turning on and my car would overheat. Replaced the thermostat/ rad. cap and coolant flush.
Still the fans do not come on. Even unplugged the radiator temp sensor and they still do not come on. Also bleed the cooling system. When I try to turn the a/c on full blast to get the fan to run it turns on for 2 seconds and turns off repeatedly along with the compressor.

I have no clue what to do, and would like to know what might be them issue before taking it to the shop. I can diy the compressor, but what can I do to get my fans running so my baby stops overheating.

Any imput will be greatly appreciated.

 

That is wierd, the same exact thing happened to me about a month ago...i got my AC re-charged, and my fans stopped coming on.

i unplugged both harnesses for the fans, disconnected the battery, re-connected everything and they started working normal again. its been a month with no issues. i have no idea what caused it

 

Check the relays.

 

Thanks a lot for the responce I really appreciate it. Unfortunetly this didnt work for me. Taking it to the shop now will update

 

Correct!
Replaced the master relay ($35) and she's back to normal. Thanks HtownGS4

 

yayy so happy got it fixed!

 

I have having the same issue, which relay did you replace?

 

Anyone know what the master relay looks like?

Would like to replace this on my GS4 as wwll