Okay here it is, I am asking here because here everyone seems the most intelligent. My buddies 96 3.8’s air does not work. He took it in for a free inspection and they said he has Freon, he has correct pressure, but they need to do an electrical check. So we replaced the relay and checked the fuses, but he only blows hot air. They also said his compressor appeared to be fine. If so then what is it?

1. No leaks
2. Full Freon
3. No Cold Air Only blowing HOT no matter if it is on high, medium or low.

They say the AC clutch is not getting any power...

 

I don't know what 'relay' you replaced. But there is a low pressure switch that shuts everything down when the pressure gets too low. It might be bad. I know there is a pressure switch located close to the condensor but I'm not sure if it's the same part as the low pressure switch. It could also be the high pressure switch. But I don't know if it's the same part or if they're seperate.

 

How do you test the switches..

 

Just jump it with wire the one under the hood. Pull the conector off and jump it with wire. My friend had the same problem when we installed an SLP AIT sensor mod. Told the comp the air outside was so cold that the compressor wouldn't turn on.

Tyler

 

there is also a high pressure switch, check that when you check your low pressure switch.

don't ask how i figured that out...

 

He took out his RK Sport IAC sensor and his air worked again..... Now i have an IAC Sensor form slp in my z and my air wokrs great. Why would it act so differnt on a 3.8?