Car Information:
Chrysler T&C
Year: 2003
Engine Size: 3.8L
Trans: Automatic

Issue / Question:
A/C problem. I recently had a new compressor expansion valve installed. Since the repair was done, air on the driver’s side does not get nearly as cold as the passenger side or rear air. I have checked the actuator doors on the plenum and all seem to be functioning. Any ideas on what I can do?

Answer:
If the blend door is working its full scale and the proper amount of refrigerant has been used it leaves one common thing we see. When another shop has replaced a compressor and has no cold air or cooler on one side than the other, they didn’t purge the existing refrigerant oil out of the evaporator. See there’s not supposed to be any oil in the evaporator in a perfect world. Although it’s impossible to keep it out unless a person uses a product like ICE-32. Let’s say over the years your oil charge is in the original compressor, 3 ounces got pulled out of the compressor overtime and into the evaporator. Not only does this restrict the evaporator reducing its refrigerant capacity, it doesn’t sound like it did your old compressor any favors either! Now someone installed another compressor full of oil and for the heck of it just to make sure the new compressor had plenty of oil they added a little more. Now you have a evaporator 1/2 full of oil so you’re only going to get refrigerant flowing through the upper half of the evaporator (the part the passenger side gets.) I would suggest evacuating the system, purging the oil out of the evaporator and condenser, then recharging the system and adding the ICE-32. This should get you back in business!

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Magic Mechanic
1432 Lee Road OrlandoFL32804 USA 
 • (407) 298-7447