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My O5 Deville Ac System Blows acold Air on driver side.But On the passenger side it Be Hot.But if i leave the Pass Door Open..It Kicks in..Whats My Problem.

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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emissionwiz
  • 76164 Answers

SOURCE: my 1997 buick park avenue

U need to replace the air temperature control blend door actuator motor, this requires removing the dash to access the motor for the blend door.

Posted on Apr 13, 2009

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  • 1348 Answers

SOURCE: even when air is off, hot air comes out all pass side vents

it is the flap door inside the heater box area.alot of gm with electronic climate control have the problem.there is an actuator motor that needs to be replaced.

Posted on Jun 14, 2009

  • 3600 Answers

SOURCE: AC blows cool air on passenger side but warm on driver's

Yes there is both a door and a flapper you have a problem with a blend door motor, it is not switching to cold it is half open and half closed so you need to replace the motor vacuum motor it is under the dash near the heater on the passenger side and if it is the other motor under dash you will have to take part of the dash apart to get to it, to test buy a piece of vacuum hose 1/8 inch diameter about 3 feet long and you can hook it to each of the vacuum motors and **** on the end of the line to see which one is causing you the problem, also could be the control head for the AC inside the car where the controls are, you have to remove the ac cluster ot get to the vacuum switch it's all vacuum operated and if you pull it out you will be able to here an audible sound of air leaking if it's the switch.

Posted on Jun 17, 2009

longbow243
  • 103 Answers

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.

Posted on Aug 29, 2009

Molson02536
  • 3854 Answers

SOURCE: Air/C, blows hot air on drivers and cold air on passenger side?

The vent actuator my need to be reset, this can be done by removing the HVAC fuse from the fuse panel for 5 min or disconnecting the battery. If the vent actuator does not correct it self, then it's most like going to have to be replace due to internal parts have broke in the actuator.
Thank you for using fixya and it's common for the vent actuators to go bad after a few years, the internal parts are made of plastic and get brittle after time.

Posted on May 10, 2010

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Phil
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Sounds like you have the dual control. If you have already set the pass side on heat, (With so little infor on these we don't know how much you know) and you are still getting cold you basically have one of three problems.
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this will take diagnosis.
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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).

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