Thanks everyone here for your help and comments. With your help, I have now learned a new skill working on my VW van. We now have wonderfully cold air blowing on my wife and I as we drive through the sweltering heat of inland California on our way to Alaska.

I have solved my high side high pressure issue, it was simply overfilled. While initially charging the new system there were some wiring issues with the radiator fan which caused bad pressure readings when not enough air was blowing across the condenser. This caused me to end up over filling the sys...

Thanks everyone for all of the advice so far, I now have a few things to test and try out. I will report back after I get a chance to work on Van-Go (our 83.5 Vanagon Westy) and take more accurate temp readings, hopefully this weekend. Rebuilding this AC system has been a big learning experience for...

OK, the system was clean before SD7H15 installed. Extra 2.2 oz oil is OK. Oil can be removed by idling engine 5 min. so that oil collects in crankcase. Then remove and drain compressor. The H20 Vanagon AM AC had an optional (& desirable) auxiliary rear AC with a solenoid valve in the rear liqui...

The ambient temp reading is from a thermometer on my garage door opener (69F) and the readings from my condenser output was done using an IR (non-contact) thermometer. The emissivity setting on the IR gun needs to be set to match the emissivity of the surface that is being measured but without knowi...

I will let Ice continue about your oil. You may not realize it but he is a premier consultant, and wrote the book ‘Hot rod AC’, a book worth getting Thank you for your help so far and the info on Ice. I am thrilled to know that I am getting advice from an expert and not just some Joe Shmoe on the i...

tbirdtbird wrote: ↑Tue Jun 04, 2024 1:29 pm Why did you not purge for the second can.

I am a newbie and thought the yellow hose sealed when I removed the previous can of refrigerant so purging would not be needed. After I finished charging the system I realized the error in my assumption.

Ice-In-Tropics: Since everything was replaced, there was no oil at all in the system to begin with. I know that the new Sanden compressor came pre filled but I was under the impression that some oil still needs to be added for the other components that will end up being coated with the oil. With th...

Here is the issue I am having: High high side pressures (up to 375psi @ 2K rpm) with low side around 20-24psi. Vent temp 39F with outside temp 70F. Here is what I have done: This is an aftermarket in-dash Behr AC unit in an 83.5 VW Vanagon, which I have replace everything except for the electronics ...