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01 Tahoe - fresh air blend door issue (?) #4517640
09/16/17 08:12 AM
09/16/17 08:12 AM
Joined: Feb 2011
Posts: 1,264
Wishin' I was in Wi
mjk Offline OP
mjk  Offline OP
Joined: Feb 2011
Posts: 1,264
Wishin' I was in Wi
A problem started yesterday afternoon. As I left a gas station, I started to get a loud clicking noise from behind the glove box. It sounds a bit like a relay being tripped, about 1 click per second.

Turning the HVAC controls to recirculate eliminates the problem.

In doing a search, it sounds like a fresh air actuator is shot? I also heard the entire dash might have to be removed to replace it.

Any thoughts or ideas are appreciated. I am going into my mechanic on Monday, I am just trying to prepare myself for the worst.

Appreciate it.

Re: 01 Tahoe - fresh air blend door issue (?) [Re: mjk] #4517672
09/16/17 09:05 AM
09/16/17 09:05 AM
Joined: Sep 2005
Posts: 5,663
MIchigan
Warstud Offline
Warstud  Offline
Joined: Sep 2005
Posts: 5,663
MIchigan
You might be able to access it by removing the lower panel on the drivers side.

Re: 01 Tahoe - fresh air blend door issue (?) [Re: mjk] #4517689
09/16/17 09:30 AM
09/16/17 09:30 AM
Joined: Jun 2003
Posts: 17,338
Deplorable in apple valley, ca
Chris142 Online content
Chris142  Online Content
Joined: Jun 2003
Posts: 17,338
Deplorable in apple valley, ca
Its the teeth in the actuator. Depending on which one is bad the dash may have to be layed back to get to it. We get 6 hrs and replace all while its opened up. There is 1 that can be done without removing the dash.

Last edited by Chris142; 09/16/17 09:31 AM.

02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: 01 Tahoe - fresh air blend door issue (?) [Re: mjk] #4517704
09/16/17 09:47 AM
09/16/17 09:47 AM
Joined: Oct 2009
Posts: 3,206
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,206
Wet side WA
Originally Posted By: mjk
A problem started yesterday afternoon. As I left a gas station, I started to get a loud clicking noise from behind the glove box. It sounds a bit like a relay being tripped, about 1 click per second.

Turning the HVAC controls to recirculate eliminates the problem.

In doing a search, it sounds like a fresh air actuator is shot? I also heard the entire dash might have to be removed to replace it.

Any thoughts or ideas are appreciated. I am going into my mechanic on Monday, I am just trying to prepare myself for the worst.

Appreciate it.


Yes I was talking to a guy at NAPA just yesterday. They problem with new cars is they run pretty well but its all this kind of carp that kills cars and makes them unmaintainable in 8 to 12 years. So next time your looking for that shiny new ride pick the basic model without all the bells and whistles and you'll still be driving it in 20 years if you want to be.


2004 Corolla 124642
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74277
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 74705 4-22-18
Re: 01 Tahoe - fresh air blend door issue (?) [Re: mjk] #4517726
09/16/17 10:25 AM
09/16/17 10:25 AM
Joined: Feb 2011
Posts: 6,718
Hudson, NH
LeakySeals Offline
LeakySeals  Offline
Joined: Feb 2011
Posts: 6,718
Hudson, NH
Hopefully its just the blend door actuator. Pretty easy fix for DIY.

https://www.2carpros.com/articles/replace-blend-door-motor


06 Escalade 6.0L LQ9 AWD 165k M1 5w30
03 Maxima 3.5L POS 152k ST HM 10w30
Re: 01 Tahoe - fresh air blend door issue (?) [Re: mjk] #4517810
09/16/17 12:29 PM
09/16/17 12:29 PM
Joined: Sep 2005
Posts: 5,663
MIchigan
Warstud Offline
Warstud  Offline
Joined: Sep 2005
Posts: 5,663
MIchigan
A cheap fix is to rotate the Gear instead of replacing.

Re: 01 Tahoe - fresh air blend door issue (?) [Re: mjk] #4517844
09/16/17 01:08 PM
09/16/17 01:08 PM
Joined: Jan 2013
Posts: 1,833
Texas
WyrTwister Offline
WyrTwister  Offline
Joined: Jan 2013
Posts: 1,833
Texas
If the part is reasonably priced , if I managed to get to the old one , I would replace it , not just turn the gear .

But it is your money , each to his / her own .

Best wishes , :-)


Wyr
God bless
Re: 01 Tahoe - fresh air blend door issue (?) [Re: LeakySeals] #4517937
09/16/17 03:26 PM
09/16/17 03:26 PM
Joined: Feb 2011
Posts: 1,264
Wishin' I was in Wi
mjk Offline OP
mjk  Offline OP
Joined: Feb 2011
Posts: 1,264
Wishin' I was in Wi
Originally Posted By: LeakySeals
Hopefully its just the blend door actuator. Pretty easy fix for DIY.

https://www.2carpros.com/articles/replace-blend-door-motor


yeah, unfortunately, it isn't that one. All my HVAC works correctly, it is the actuator that must open/close the fresh air intake....

It is right behind the glove box. I can put my hand on the black box behind it, and feel the actuator trying to work.

Re: 01 Tahoe - fresh air blend door issue (?) [Re: mjk] #4517944
09/16/17 03:39 PM
09/16/17 03:39 PM
Joined: Feb 2013
Posts: 10,679
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline
Joined: Feb 2013
Posts: 10,679
Phoenix, AZ
Yup, those GM door actuators are always going out.


2015 Hyundai Sonata 2.4L 84k Mobil 1 AFE 0w30 & OEM
2000 Toyota Camry 2.2L 230k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: 01 Tahoe - fresh air blend door issue (?) [Re: Nick1994] #4518487
09/17/17 11:00 AM
09/17/17 11:00 AM
Joined: Sep 2005
Posts: 5,663
MIchigan
Warstud Offline
Warstud  Offline
Joined: Sep 2005
Posts: 5,663
MIchigan
Originally Posted By: Nick1994
Yup, those GM door actuators are always going out.


It's 16 years old....somethings bound to break.

Re: 01 Tahoe - fresh air blend door issue (?) [Re: mjk] #4518488
09/17/17 11:03 AM
09/17/17 11:03 AM
Joined: Jan 2013
Posts: 1,833
Texas
WyrTwister Offline
WyrTwister  Offline
Joined: Jan 2013
Posts: 1,833
Texas
Would be nice if they made those gears out of metal , preferably ferrous metal .

Best wishes , :-)


Wyr
God bless
Re: 01 Tahoe - fresh air blend door issue (?) [Re: WyrTwister] #4518529
09/17/17 11:57 AM
09/17/17 11:57 AM
Joined: Jun 2003
Posts: 17,338
Deplorable in apple valley, ca
Chris142 Online content
Chris142  Online Content
Joined: Jun 2003
Posts: 17,338
Deplorable in apple valley, ca
Originally Posted By: WyrTwister
Would be nice if they made those gears out of metal , preferably ferrous metal .

Best wishes , :-)
then the blend door would break instead.


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: 01 Tahoe - fresh air blend door issue (?) [Re: Chris142] #4518538
09/17/17 12:07 PM
09/17/17 12:07 PM
Joined: Sep 2005
Posts: 5,663
MIchigan
Warstud Offline
Warstud  Offline
Joined: Sep 2005
Posts: 5,663
MIchigan
Originally Posted By: Chris142
Originally Posted By: WyrTwister
Would be nice if they made those gears out of metal , preferably ferrous metal .

Best wishes , :-)
then the blend door would break instead.


Kinda like a shear pin? Weak point.

Re: 01 Tahoe - fresh air blend door issue (?) [Re: Chris142] #4518662
09/17/17 02:56 PM
09/17/17 02:56 PM
Joined: Jan 2013
Posts: 1,833
Texas
WyrTwister Offline
WyrTwister  Offline
Joined: Jan 2013
Posts: 1,833
Texas
Originally Posted By: Chris142
Originally Posted By: WyrTwister
Would be nice if they made those gears out of metal , preferably ferrous metal .

Best wishes , :-)
then the blend door would break instead.


You could be correct . :-(

Best of luck to you , :-)


Wyr
God bless

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