SepticFuddy
Member
I just replaced the front evaporator in my '04 5.4L with rear climate control, vacuum tested the system and recharged it. However, it would only take the amount of refrigerant required for a front only unit (32 oz.) instead of the full 54 oz. for a front and rear unit. The front A/C is blowing cold just great, and the rear A/C isn't blowing cold at all. I know the blend door actuator and rear climate control panels are not the issue because I replaced the gear in the blend door actuator and turning the controls to heat puts out heated air, while turning back to cool puts out ambient temperature air. It seems as if the rear refrigerant lines are somehow blocked off from the rest of the system, but in pouring through the service manual I found, I can't find anything that would explain how that might be.
Can anyone explain what might be happening/how to diagnose the issue? Thanks.
Can anyone explain what might be happening/how to diagnose the issue? Thanks.