Question about 2004 Chevrolet Suburban

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2004 chevrolet suburban AC blows hot/cold at same time

Front A/C blows hot air on the driver's side while blowing cold air on the passenger's side.

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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.

Posted on Aug 29, 2009

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Jan 21, 2016 | Cars & Trucks

1 Answer

Driver siide blows hot and passenger and rear blows cold. Is it driver's side actuator?


Had same problem on my 04 Suburban. Dealer's service dept said the passenger side temp sensor was defective causing the driver side actuator to continuously search. They replace the sensor about 2 months ago and A/C has been working fine ever since. Repair bill was $400+.

Jun 23, 2011 | 2004 Chevrolet Suburban

1 Answer

The air conditioner starts blowing hot air on the driver side while the passenger side blows cold air.


2004 Suburban air conditioner blows hot air to the dirver side but cold air to the passenger. This does not happen all the time but has occurred several times this last summer.

Sep 14, 2010 | 2003 Chevrolet Suburban 1500

1 Answer

I have 2004 suburban, when the ac is on it blows hot on pass side


sounds like a heater/ac door is not working.take apart black air box under dash but only after checking lines and wires making sure that side is not worn threw on something.

Aug 08, 2009 | 2004 Chevrolet Suburban

1 Answer

Front a/c problems


There is probably a temperature blend door in the duct-work under the dash that is inoperable or stuck in the heat mode.

Jul 05, 2009 | 2004 Chevrolet Suburban

1 Answer

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.

Jan 27, 2009 | 2004 Chevrolet Suburban

1 Answer

Climate control panel


These problems are usually caused by a faulty blend door actuator which controls the position of the air mixing door, and in vehicles with more than one air zone (passenger/driver, front/rear, etc.) there will be a door/actuator for each. These electric blend door actuators are self-calibrating - there is a feedback circuit (wiper type potentiometer) that tells your HVAC control the position of the door. It is not unusual for this potentiometer to wear causing loss of signal at various positions, which then will cause erratic movements of the door (if the circuit fails to open circuit or shorting, the door will default to fully open or closed - i.e. hot or cold air only).

Mar 28, 2017 | 2004 Chevrolet Suburban

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