My friend is having the same issue, yet we refilled the refridgerant and it blows out colder on the passenger side but still warm on driverside, so i dont this just refilling it is gonna work

 

locate the blend air doors and see if they are moving when you change the temp from hot to cold on the driver side. also depends what kinda car this is

 

Short history... 2009 T&C 3.8: A/C blows cold, no problem. Intermittently, it would blow HOT. I'm not talking "not cold", I mean full on hot air. After finding this forum, my blender door was broken, replaced it, and wahlah, right? NOT! It did it again 2X. Head scratching, what's up? Looking at eManuals' pictures and diagrams, I notice there is a temperature sensor on the evaporator in the lower corner. When I replaced the blend door, I noticed a few pine needles in the fan. Curious? Looked up and forward through the blend door housing and saw a few more that had been caught by the mesh. Because of the angle, I didn't realize how many. I removed the windshield wipers and cowl. On passenger side, from the left looking at the engine, there is a square hole, then four rectangular holes. I shoved a small vacuum hose into the first rectangular hole aiming back towards the square hole (towards the passenger door), and heard many leaves, and maybe a few acorns being removed. No problems since. The science behind, and why? The A/C system is designed to keep temps somewhere between 60 to 85 degrees F. If your A/C is chilling right along and the airflow is obstructed over that before mentioned evap temp sensor, it is no longer having the ambient air to warm the sensor. It will get super cold. Much colder than the lowest (60-ish), setting the system is designed to maintain. So, what does it do? It adds hot air as long as that evap temp sensor is covered, trying to get the temperature back into the 60 to 85 deg range. If the leaf drops away, your A/C goes back to normal. Leaf flips up in front of sensor, it blows hot again. Doesn't cost anything and can be done in an hour or two. I hope this helps. Be cool (as you want to be).

 

Short history... 2009 T&C 3.8: A/C blows cold, no problem. Intermittently, it would blow HOT. I'm not talking "not cold", I mean full on hot air. After finding this forum, my blender door was broken, replaced it, and wahlah, right? NOT! It did it again 2X. Head scratching, what's up? Looking at eManuals' pictures and diagrams, I notice there is a temperature sensor on the evaporator in the lower corner. When I replaced the blend door, I noticed a few pine needles in the fan. Curious? Looked up and forward through the blend door housing and saw a few more that had been caught by the mesh. Because of the angle, I didn't realize how many. I removed the windshield wipers and cowl. On passenger side, from the left looking at the engine, there is a square hole, then four rectangular holes. I shoved a small vacuum hose into the first rectangular hole aiming back towards the square hole (towards the passenger door), and heard many leaves, and maybe a few acorns being removed. No problems since. The science behind, and why? The A/C system is designed to keep temps somewhere between 60 to 85 degrees F. If your A/C is chilling right along and the airflow is obstructed over that before mentioned evap temp sensor, it is no longer having the ambient air to warm the sensor. It will get super cold. Much colder than the lowest (60-ish), setting the system is designed to maintain. So, what does it do? It adds hot air as long as that evap temp sensor is covered, trying to get the temperature back into the 60 to 85 deg range. If the leaf drops away, your A/C goes back to normal. Leaf flips up in front of sensor, it blows hot again. Doesn't cost anything and can be done in an hour or two. I hope this helps. Be cool (as you want to be).

 

The evap temp sensor is designed to tell the PCM it needs to turn off the ac compressor before the temp gets to 32F and freeze up the evaporator

 

Hello!

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Hannah
Chrysler Cares