I have a 2002 Chevy Trailblazer LTZ recently the air conditioner has stopped blowing I can hear a loud tap-tap-tap but no air comes out what's causing this is it just a stuck switch how expensive is i

20

Asked by Jul 06, 2017 at 05:41 PM about the 2002 Chevrolet TrailBlazer LTZ 4WD

Question type: Maintenance & Repair

8 Answers

275

Did you unhook the battery for any reason? Also, does it not work on all speeds?

Best Answer Mark helpful
20

My shifter switch broke so its been sitting for a week or so. Battery died so it had to be jumped. It was working before that. Just got shifter fixed and the a/c quit. I can hear the blower (assuming that what its called) but no air coming from the vents.

275

Bad news, your vent actuators have blown IF you can hear the blower going through the different speeds. Cheap parts, but pain in the butt to replace. It's a design flaw really, they can easy blow (go out) when the battery is hooked back up or jumped or new battery put back in. Unfortunately it's a common problem with our platform.

2 of 2 people found this helpful.
20

Thank you. This is helpful. At least I know what to work on.

20

You do you access it? Where is it located?

20

How not you lol

1 of 1 people found this helpful.
275

It's accessed through the dash unfortunately. Youtube "trailblazer vent actuator". Envoy is exactly the same, I see 3 videos there.

1 of 1 people found this helpful.
20

Thanks. I appreciate your help!

1 of 1 people found this helpful.

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