Question about 2004 Chevrolet Monte Carlo

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I have a 2004 Monte Carlo, i have dual climate control and my passenger side blows heat but my drivers side does not. any tips on what to do.

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  • 2 Answers

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Posted on Jan 02, 2017

emissionwiz
  • 75117 Answers

SOURCE: dual climate control

There is a thing called a blend door, it controls air temp, that is where the problem is, most common issue is the motor that operates the door fails.

Posted on Sep 05, 2008

  • 24 Answers

SOURCE: heat works on driver side, passenger side blows cold air.

Did you check your coolant level or was it low and you added to it at some point? If so the system my need to be bleed or worst case the thermostat is going bad.

Posted on Jan 03, 2009

  • 93 Answers

SOURCE: Impala has dual climate control. AC blows cold on

with a dual climate control system, it is imperative for a proper refrigerant charge to be maintained. the symptom you describe is a possible indicator of low charge on the system. the ac evaporator core is closest to the right side of vehicle thereby making air feel cooler on that side, on the left side of the vehicle the cooled air has farther to travel and warms up from cabin air before it discharged from the vents. this is the most probable issue for your vehicle...however if the charge is accurate, the issue would be more so in the air temperature doors which is located deep inside the dash...i hope this helps...good luck!

Posted on Jun 11, 2009

  • 54 Answers

SOURCE: 2004 chevy tahoe, dual climate control, blowing different temps

Its more then likely the temp door broken or temp door motor broken/stuck. There is 2-3 of these motors under the dash on the side of the evap/heater core box. Some require extensive labor to replace, good luck

Posted on Jul 29, 2009

  • 1 Answer

SOURCE: 99 Buick Regal LS dual climate control. No heat passenger side.

the motor for the passenger side
blend door is shot

Posted on Jan 12, 2010

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I have a 2003 Monte Carlo SS. The dual climate control doesn't seem to work properly. With AC going, passenger side blows cold air but the drivers side blows warm air as if it is set for "vent". I replaced...


check the actuator motor and make sure it is moving the doors between the heater and the ac. it is in the center of the heater inside the car and is a small motor attached to the heater housing.

Jun 06, 2014 | 2003 Chevrolet Monte Carlo

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Monte Carlo Problems


your vehicle has 2 heat sensors I am gathering with 2 fans 1 of the relays is bad most likely ..autozone reads this free and will take out the guessing game

Oct 23, 2013 | Cars & Trucks

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I have a 2004 Monte Carlo and My driver side blows out cold air and my passager side has heat. why dont my driver side have heat???????


you have "blend doors" under the dash, most likely you have dual side temp controls, and the little electric blend door actuator is bad, they are not easy to get to, but can be done in the drive way, hope this helps,

Jan 24, 2011 | 2004 Chevrolet Monte Carlo

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I have a 2004 monte carlo and my driver side heat does not work it blows out cold air even when the control switch is on the heat my passenger side works fine


Hello and welcome. this is caused by a bad temp door actuator for the drivers temp door. you will need to replace the drivers temp door actuator. this is a electric motor that moves the temp door from cold to hot and hot to cold

Oct 23, 2010 | 2004 Chevrolet Monte Carlo

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I just replaced my 3.4 liter motor in my 2004 monte carlo and I need to figure out why the other motor over heated and blew a head gasket. Before I replaced the motor the heater was blowing cold air and...


a little tip is to "vent" the topmost hot hose whith the engine running to clear any trapped air in system.....loosen the clip,whilst under pressure,wear rubber bloves cos it bloody hot.......

Sep 10, 2010 | 2004 Chevrolet Monte Carlo

1 Answer

2001 Monta Carlo will not heat only on the passanger side. a/c works fine. Has dual controls. It heats fine on the driver's side.


there is a motor to drive the door open and closed on each side - door could be stuck or motor /coupling bad - a scanner should give a code for climate control

Sep 25, 2009 | 2001 Chevrolet Monte Carlo

1 Answer

Driver side heat blows cool air passenger side blows hot air


Hello. The side that is not operating properly has a bad temp door actuator located up under the dash. I am assuming this vehicle has driver/passenger(dual)climate control heat and cold settings. This is a very common problem on these vehicles. Hope you find this information useful!

Sep 17, 2009 | 2004 Chevrolet Monte Carlo

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