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06-27-2008, 11:05 PM
| #1 |
| Junior Member Join Date: Jun 2008 Location: Suthn half of Nortern Nevada
Posts: 6
 |  Wood ****** in my AC/Heater housing? Howdy folks, Diddly here. I have a 94 Sierra 4X4 with Z71 pkg. Lately when I turn the ignition switch on and for maybe 45 seconds there is a noise that sounds like a Woodpecker knocking away in the heater housing. Been told that maybe it is a bad AC/Htr Blend accuator and that it maybe necessary to R & R the dash to replace it? Does that sound right? Can it be disabled and left quiet where it is? Thank You Diddly here in the eastern Sierra/Nevada Mountains, Gardnerville, NV |
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06-28-2008, 10:29 AM
| #2 |
| Senior Member Join Date: Mar 2008 Location: N.Y.
Posts: 1,074
 | Sounds like the fan going bad, pull the glove box and r&r it. |
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06-29-2008, 05:23 PM
| #3 |
| Junior Member Join Date: Jun 2008 Location: Suthn half of Nortern Nevada
Posts: 6
| Woodpecker in my AC/HEATER housing. Thanks for the suggestion on the heater fan, I diconnected the Heater fan motor and it made no difference. Woody woodpecker is still there. diddly |
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06-29-2008, 06:04 PM
| #4 |
| mod-o-tator  Join Date: Feb 2006 Location: michigan
Posts: 4,059
| have you tried some bird shot on the pesky critter? 
__________________ member map add yourself |
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06-29-2008, 06:04 PM
| #5 |
| Senior Member Join Date: Mar 2008 Location: N.Y.
Posts: 1,074
| usually you have a hard time hearing the electric actuator when it sits there trying to move the door, does it change tone when you change the temp from hot to cold and back? |
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06-29-2008, 09:32 PM
| #6 |
| Junior Member Join Date: Jun 2008 Location: Suthn half of Nortern Nevada
Posts: 6
| Changing from direct to recirculate while it's making the noise. It will stop the noise temporarly, after a short rest, bout 10 seconds it starts up again. |
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06-30-2008, 07:10 AM
| #7 |
| Senior Member Join Date: Mar 2008 Location: N.Y.
Posts: 1,074
| So then its the controller for the cab air recirculation find it and unplug it, I think it defaults to outside air, should be on the pass side around the blower motor |
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06-30-2008, 10:28 AM
| #8 |
| Senior Member Join Date: Oct 2007
Posts: 216
| It is the blend door actuator motor.... |
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06-30-2008, 12:08 PM
| #9 |
| Junior Member Join Date: Jun 2008 Location: Suthn half of Nortern Nevada
Posts: 6
| Thanks to all who helped with the diagnosis on my woodpecker problem. Semper Fi 1952/1957 |
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07-02-2008, 07:40 AM
| #10 |
| Senior Member Join Date: Aug 2007
Posts: 82
| I have the same noise in my truck. Let us know how you fix it. |
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