Passenger side A/C is warm, drivers' side is cold, not Super cold but cold?

Tiny
BHAMDOC1973
  • MEMBER
  • 2012 DODGE CHARGER
  • V8
  • 2WD
  • AUTOMATIC
  • 85,000 MILES
Bought this car as is, it was running very rough, while I was working on it, I once heard a hiss and some Freon sprayed from somewhere around the compressor. Days later I changed the CPS, and the car runs great. A/C was fine to a degree, no more sprays since that first one.
Today I was cleaning it out and noticed the passenger is warm, driver is cold, not super cold but cold.
I attached my gauges while the car was running, and they read 170 on high and 350 on low, which does not make sense. Then I did another set and they read 170 on high and 38 on low side. No matter what I did to try to add freon it would not go above 40 and I don't think it is even taking it. I tried three different gauges. I have a feeling it may be over filled. I don't know what to do from here.
Compressor runs fine, does not cycle on and off.
I found some receipts showing some work done:


10/13/ 2021: A/C not cooling properly. They found a leak and compressor bad, replaced compressor and lines. Also replaced accumulator/dryer.


March 10, 2022: Prior issue, heat blowing cold and cold blowing heat. The lower radiator hose was not as hot as it should be. They found thermostat failure. They replaced it and tested, and all was good.

March 21, 2022: Lower radiator hose still not as hot as it should. Passed head/block test. Coolant was flushed and water pump replaced.

All the work was done by Carmax under warranty.


I went and started the car again now and the passenger was a bit cold, and driver was very good and still is then passenger went to hot. I think these codes were from before, before I replaced the battery.
After I deleted the codes, now the passenger is not as hot as it was. Bit still. Anytime you turn the car off then on the passenger cools very little then changes to hot.
Sunday, August 7th, 2022 AT 4:00 PM

2 Replies

Tiny
BHAMDOC1973
  • MEMBER
  • 1,279 POSTS
I drove it today and noticed it gets cold on passenger's side while driving, scale of 1-10 I would say 6, once you stop gets warmer.
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Monday, August 8th, 2022 AT 8:19 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,783 POSTS
It looks like this car has serval problems we will handle the A/C problem on this thread. Please start a new questions for the additional problems. Can you tell me what the high and low side reading are for the A/C? This video will show you how.

https://youtu.be/4EqdrBVb0sY

It also sounds like the driver's side blend door actuator is not working here is its location in the diagrams below so you can replace it. This generic guide can help you see what you are getting into with the repair:

https://www.2carpros.com/articles/replace-blend-door-motor

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

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Monday, August 8th, 2022 AT 12:05 PM

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