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.
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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