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Chevy Mechanics
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Ted J View Drop Down
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Joined: 05 Jul 2010
Location: La Crosse, WI
Points: 18699 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ted J Quote  Post ReplyReply Direct Link To This Post Topic: Chevy Mechanics
    Posted: 20 Jun 2021 at 9:04pm
I have an 04 Silverado WT with the 4.3 v6 engine.
I have a clicking sound coming from the fan area.  When I have the manual heater control in the blue zone, it is clicking all the time.  If I raise it to the red area, it stops.
What piece do I need to replace to stop this?
My thinking is the HVAC Door Actuator.
What do you guys who KNOW and work on em think?
Thanks guys!
"Allis-Express"
19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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PaulB View Drop Down
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Joined: 12 Sep 2009
Location: Rocky Ridge Md
Points: 4400 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jun 2021 at 9:23pm
Turn the volume of the radio to 11 LOL
If it was fun to pull in LOW gear, I could have a John Deere.
If you can't make it GO... make it SHINY
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
Location: illinois
Points: 77571 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jun 2021 at 9:59pm
There is normally a BLEND DOOR that mixes the warm and cool air to get the correct temp.. If you set it to "cool" and the  adjuster is broken in the "warm" position, then yes.. it will set there and CLICK, CLICK, CLICK as it tries to position the door to your set position.... I think your looking at the right area.
Like them all, but love the "B"s.
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
Location: illinois
Points: 77571 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jun 2021 at 10:02pm
https://www.youtube.com/watch?v=vo6dnkbn5Bk


Like them all, but love the "B"s.
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HD6GTOM View Drop Down
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Joined: 30 Nov 2009
Location: MADISON CO IA
Points: 6627 		Post Options Post Options   Thanks (0) Thanks(0)   Quote HD6GTOM Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jun 2021 at 10:04pm
+1 on Steve's reply. The problem being sometimes ya gots ta tear the whole dang dash out to get to the one that ain't working. Boys in the shop used to cuss every pickup brand when this happened. I can't do it anymore my dang back won't let me. Good luck with it.
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Dakota Dave View Drop Down
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Joined: 12 Sep 2009
Location: ND
Points: 3893 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dakota Dave Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jun 2021 at 7:16am
blend door actuator is broken. if you remove the glove box you should be able to reach in and change it one of the 7mm screws is really hard to get to.  I had to remove defroster duct and  the ECM on my suburban to get one screw out. taped the screw to the wrench to get it back in.
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Ted J View Drop Down
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Joined: 05 Jul 2010
Location: La Crosse, WI
Points: 18699 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ted J Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jun 2021 at 1:40pm
Thanks Guys!  I have one on order.
"Allis-Express"
19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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