I have never heard of this on a vette..BUT..sometimes the expansion valve in the A/C train freezes over, hence not being able to cool air. But that generally affects the whole output, not just half the car *shrug*Sometimes the AC blows warm of hot air out of the passenger side vents even when the systen is set to A/C, max cold at the control, and max cold of the passenger side. At other times, the system works correctly. No codes.
Welcome to DC. :buhbye:Luk3r I think "I have never heard of this on a vette..BUT..sometimes the expansion valve in the A/C train freezes over, hence not being able to cool air. But that generally affects the whole output, not just half the car *shrug*" is exactly my problem. How can I fix this?
That is not a common failure part, however, I would need to trouble-shoot your issue with a Tech II in order to say that it is definitely not the problem. With that said, if your R-134a levels are exactly where they should be, I would tell you to double-check EVERYTHING that I posted in post #8. Read it again.So I don't need to replace the mode actuator, right? That is not what is sending the trouble codes, I'm guessing.
Your picture is too small for me to be able to tell anything. Take a bigger picture and post it as I describe how to do in this thread. Use a 1024x768 size like this:View attachment 2941 Thanks Junkman. OK, here's where I am now. I ordered the new actuator from Gene Culley. When it arrived, it looked like the old design (no metal stop). I called him up and spoke to him, and he said that the part he sent WAS the latest design, redone in 2004. I believe him, but I sent him a copy of your post and pictures of the old (the one out of my car) and new (received from GMParts) actuators. I am a little leery about installing the new part until I'm sure it's right. What do you think? The number on the new part is 89018365.