Automotive Air Conditioning Information Forum

This Suburban came with just a single evap. It worked good when it was R-12.
From the sounds of it I have 2 choices.
1. Work on getting the charge just right.
2. Tear it apart again and replace the evap with one from a trusted manufacturer. Then work on getting the charge right.

I think at this ...

This is a front only system and it has a white orifice tube

Here is another PIC showing the inside a little better. For some reason I could not attach both images in one message.

Here are a couple of PICS of the original evaporator. The one I replaced it with is a Fourseasons 54275.
If its under charged and starving the evaporator would the over all temp of the evaporator just be warmer and not have a 22* difference from one side to the other? It also seem like the path of ...

I have not had the time yet to empty and recharge the system with 36 oz of refrigerant but today I had the time to replace the LPCOS and it is now turning the compressor off at 26-27 psi and turns it back on at 40 psi.
Then I removed the duct that attaches to the rear of the heater-A/C housing under ...

Johnhere.
I was thinking that by changing the type of condenser from tube and fin to parallel flow would change the amount of refrigerant needed for a correct charge.The old one looks like it has a much larger internal volume than the new one and therefore the stock specs would be off as a starting ...

High everyone. I've been gleaning knowledge from this site for a while, but this is my first post.
I have a 88 Chevy suburban that needed a new compressor and it was recommended to be retrofitted to use R134a at the same time. The mechanic said he had done quite a few retrofits and while they do ...