HVAC system

GOLFERKING

MEMBER
2002 CHEVROLET TRAILBLAZER
6 CYL
2WD
AUTOMATIC
99,287 MILES

I hear a clicking noise coming from right behind my dash on driver side vent above radio in the vehicle listed above LT. I have heat but it's week and semi cold A/C.

please advise.

Thank you
Jim

Thursday, December 19th, 2019 AT 8:37 AM

3 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good afternoon,

There are 3 actuators on the driver side. Go up under the dash on the left side while the noise is happening. Put your hand on each one until you find out which one is making the noise.

Then get back to me with which actuator is making the noise.

Roy

1. Remove the I/P carrier.
2. Remove the left side air temperature actuator (1) retaining screws.
3. Disconnect the left side air temperature actuator electrical connector.
4. Remove the left side air temperature actuator.

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Thursday, December 19th, 2019 AT 1:18 PM

GOLFERKING

MEMBER
4 POSTS

Thanks Roy, that was a very fast response I was expecting 24-48 hours. So this is my question, from the photo attached I hear a clicking noise coming from behind left upper center vent. Looking at the diagram in you’re message 1, 2 and 3 being the actuators can you tell me what they are called? Since I’m going to be taking the dash apart I would like to replace all 3 and be done with it. Also does # 1 actuator represent bottom front left of center or is # 2 bottom left of center? Thank you, Jim

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