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How to replace rear blend door actuator on 97 town and country

AC/Heat controls work fine for driver and passenger side. I turn on rear blowers with AC on and the air is warm (not cold). I had read that the rear blend control could be behind the rear passenger side quarter panel. I want to know where it is located and how to get to it so I can replace it. Please provide detail instructions if possible.

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  • Cars & Trucks Master
  • 752 Answers

Hi Jim, I'm glad to help!

Jim, first you'll need to get the seats out of the way. Next remove the rear quarter panel. The blend door motor will be right in front of you mounted on the side of the Rear A/C Housing. It's been known to go bad. BUT, sometimes the door itself breaks, so you'll need to check that. But most importantly you'll need to make sure it's getting power and ground from the control unit because I have found is some cases it's not receiving power and ground to the motor. You can check the motor by applying power and ground from the battery to see if the motor is good. Hope this helps and have an awesome day Jim.

Posted on Jul 11, 2014

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Posted on Jan 02, 2017

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aaangie220
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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.

Posted on Jan 29, 2009

honeymokey
  • 3113 Answers

SOURCE: air blend door

Replace the broken actuator.

Posted on Apr 15, 2009

honeymokey
  • 3113 Answers

SOURCE: Cold AC but weak Airflow---Also Driver side not as cold as passenger

The air doors are controlled by actuators that on of them or so may need replacing.

Posted on May 09, 2009

michael_grey
  • 365 Answers

SOURCE: cold air on passenger side warm air on drivers side

Actuator motors either get a tear in the rubber or a hose is broken and not letting vacuum assist in its opening.
You can try moving the lever by hand and see if the air gets colder on the bad side.c976077.jpg

Posted on Aug 04, 2009

  • 497 Answers

SOURCE: driver's side air blowing warm, won't change

Sounds like there is a crack in the vent that leads to the drivers side, and hot air from the engine is leaking through.

Posted on Aug 29, 2009

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http://www.tonkinonlineparts.com/showAssembly.aspx?ukey_product=5907359&ukey_assembly=844095
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