Just got an 86 IROC and I can get air to blow out the vents, but I get no cold air or hot air. It's just room temp air no matter what. Any ideas?

 

Let's start with the basics. For the AC, does the clutch engage?

 

Nope it does not

 

LOL, well that would be a problem with no AC in the car. As a TEST, unplug the cycling switch (found on the dryer) and jump the two wires (with the car running and the AC controls set to ON). If the compressor kicks on then we have low refrigerant. We will need to find the reason why it is low (leaks, etc.)

 

AC is one thing.... But no heat??? That's odd.... Either the heater core is not piped up... Or the bypass valve is stuck... Or the heater blend door doesn't work....

Personally... I would start with the heat... It easier and could point to other issues... Like is their hot coolant going to the heater core.

 

Thanks for the replies... life got in the way so it'll be a few days before I get to test the things you guys mentioned.