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HVAC panel mode door actuator location needed

Tiny
PJG7466
  • MEMBER
  • 2000 CHEVROLET MONTE CARLO
  • 3.4L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 118,000 MILES
Car blows good heat but it blows out all vents floor and defrost changing selector has no effect Blend doors are working I think it's the HVAC panel mode door actuator. Can't find any info as to where it is located. Car has dual climate control, but like I said actuators are working set them to warm or cold they respond most air coming from vent but also floor and defrost but not as strong as vent.
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Sunday, February 14th, 2021 AT 10:32 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
You are correct that this is most likely the mode door actuator motor. However, this is a vacuum motor so we need to make sure the vacuum is there. I would just unhook the line from the motor (if it is not already off) and connect it to a vacuum gauge and then move the position and find out if it is applying the proper vacuum.

I attached the process below for these. Let me know if you have questions.
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Thursday, February 18th, 2021 AT 10:48 AM

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