Mode actuator location and removal instructions needed

Tiny
BRENDA DAY
  • MEMBER
  • 2007 CHEVROLET TRAILBLAZER
  • 4.2L
  • V6
  • 4WD
  • AUTOMATIC
  • 172,000 MILES
Which one is mode actuator and how to take it out?
Sunday, July 4th, 2021 AT 11:28 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

It is located under the dash on the left side of the HVAC unit. If you look below at pic 1, I highlighted the actuator and the arrow I highlighted indicates the front of the vehicle.

The remaining pics are the directions for removal and replacement. Once it is installed, you will need to calibrate it. I included those directions as well. You can do it using a scanner or without one. I included both.

Let me know if this helps or if you have other questions.

Take care,

Joe

See pics below.
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Sunday, July 4th, 2021 AT 9:55 PM
Tiny
EUGENEVWONG
  • MEMBER
  • 1 POST
2007 Envoy SLT.
What is the OEM Part Number?
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Monday, September 4th, 2023 AT 3:44 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,144 POSTS
Temperature Mode Valve Actuator Assembly - GM (89018365) here it is on the GM website:

https://www.gmpartsstore.com/oem-parts/gm-temperature-mode-valve-actuator-assembly-89018365?origin=pla&gclid=CjwKCAjwo9unBhBTEiwAipC11yIR3ky-ihQrn-MOwY3eoSKdaLzMULqad-LY_D-gHGx-sQGyGDK-ChoCNRYQAvD_BwE

Please let us know if you need anything else to get the problem fixed.
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Tuesday, September 5th, 2023 AT 11:10 AM

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