Front AC works better when rear AC is on??
I've been trying to troubleshoot some AC problems lately and I ran into an interesting clue lately.
It started with very poor cooling when idling mainly was very hot...
I got through the summer last year but this year it got worse. It seemed like it would take like 10-15 minutes to even start cooling. I don't mean that it would just take forever to cool down. I mean that it would blow hot air for about 10 minutes and then suddenly it would start blowing much cooler air and all would be fine.
Then it got to the point where it just wasn't cooling as well as it should be ever.
I tried checking the pressures but all I had was the cheap gauge that came with one of those recharge kits and something didn't seem right the few times I checked it so I've been waiting until I can get my hands on a good set of guages. FYI, when I first checked it the needle was way in the red, like around 150. Then another time it was down to 70 which was in the yellow.
I'm in Texas and today was pretty bad and out of desperation I turned on the rear AC just to see if the extra cooling would help. (I had no idea how it worked, didn't know if was separate or what) well just a minute or two after I did that the air from the front AC cooled down quite a bit. I tried it on a few other drives and got the same results, things work almost normal only when the rear AC is on.
So now after doing some research I see that the systems are connected so I know this has to mean something important I just have no idea what it could mean. Any ideas?