Have checked all blend door actuators all are good, starts cold then turns to hot air
You have a problem with either the blend door actuator of the door itself.
SOURCE: AC is blowing out HOT air... How to get to the Blend Door to check it?
No, you just need to fill freon gas.
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: 2004 Chevy Silverado AC is blowing warm air on passenger side.
You have dual zones that are controlled by temperature actuators the passenger side has lost its memory or has gone bad you can put it in self programming by disconnecting the battery for ten minutes then hook it back up start the truck turn the temperature control on but do not touch any other controls let it go thru the self programming for about 6 to 7 minutes then select your temperature you want if it still does not work properly you may have a bad actuator or a bad connection at the actuator
SOURCE: heater on driver side blows cold air
something wrong with flap operating device ?? would need to get my head under the dash to sort it though because their is so many variables of what could be causing it ,quick fix is to disconnect the operating mechanism and put a elastic band on it till the weather warms up
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.
Might as well replace both sides
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