Good morning to everyone. With the arrival of fall and much cooler weather here in the north Houston area, auto air conditioning has taken a back seat. Anyway, I've been gathering up funds to purchase all new ac components for my car. The only item that I will keep will be the evaporator. I'm going ...

Al9 wrote:That poor thing is plugged up. Severely starved evaporator and a destroked compressor also. You should have heard a low droning sound inside with the comp running.

Yes. Completely plugged up.

I never did hear any weird noises coming from the ac system when it was running.

Looks like "black death" to me, meaning the compressor is destroying itself internally and sending burned oil, aluminum particles, and ground-up teflon downstream. You'll need to replace the compressor, condenser, accumulator, obviously the OT, any lines with mufflers, and thoroughly flus...

I finally changed out the compressor's control valve today. It was a PITA but I got it done. I did notice that my OEM control valve didn't have a screen on the very end of it like the aftermarket control valve did. I looked carefully in the hole to make sure that it didn't come off the CV and stay i...

Thank you for that advice, bohica. Once I realized that the valve is on the engine block side of the compressor, I figured that I'd have to pull the compressor out of there. BTW guys, do you think that I should add any PAG oil to the system when I put it all back together? When I recovered the refri...

The image in this link shows the location of the Control Valve. https://ackits.net/product/14-20730nc/ Thank you, Tim!!! I haven't been able to see that "view" of my compressor so it must be facing the engine. I thought I was going to have plenty of time to work on this but now it looks l...

I crawled under the car yesterday and looked at the compressor from below. It was just the smooth metal body of the compressor. On the topside, it was the same. At this point I have to assume that I'm going to have to unbolt the compressor from the engine and look to see if the control valve is on t...

Hey guys. I know it's been a long time since I've posted. I was out of town on vacation visiting family out east and when I got back, I started trying to learn how to MIG weld. Anyway, our north Houston mornings have been cool but our afternoons are still in the mid to upper 80s so not having workin...

Thank you, Tim. It sounds like you and Al9 both recommend changing the purple control valve. Since I've got to open up the system anyway, another inexpensive item to replace is the OT. Would you recommend I do that as well or not?

Tim wrote:When it is not working well is when you need to get some pressure readings.

This would have been a good thread for GMtech. But have not seen him around in a while.

Tim, all of my gauge readings I've posted in this thread have been when "its not working well."