The front A/C does not blow very cold. The driver side is even warmer than the passenger side. The rear A/C is very cold.The freon is fine. The orfice tube may have blockedge. But, since the driver and passenger sides are different. I'm thinking that the blend door may not be operating properly. I need to know how to check it and get to it to remove any blockedge.
SOURCE: 2004 suburban rear a/c only blows hot air
ase mechanic:
there are separate actuators for the blend doors. one for heat and one for cool. they work opposite and in conjuction with each other, if that makes any sense. ones open, ones close, for each different climate. sounds like the the cold one isn't opening in the rear.
SOURCE: front aircond. blows warm. Rear air is cold
this is caused by a defective temperature control blend door actuator motor. Don't overhcahrge the system, if one part of dual climate works ok the problem is not the compressor or the system charge
SOURCE: 2004 chevrolet suburban AC blows hot/cold at same time
You need to replace the drivers side temp actuator that is located on the left side of the HVAC box. It is retained by 3 screws and is fairly easy to replace.
SOURCE: Replace Blend door on 2004 Suburban
My problem is hot air on the drivers side, cold on Pass when the AC is on...2004 Sub
SOURCE: 2004 Chevy Suburban Z71 -
if you havnt done this before than its better to pay for it.1 door is posible.2 control switch also might not keep the signal to remain open possible problem on control panel.since other side works and rear.rule of freon shortage.sonds like door or switch.that is electric and need to test resistance on switch and power outlet possible going on and of opening and closing door.or door stuck open to heater side.and not closing all the way.need a expert to check it out.door breaks easy must be carfully.
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