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Cabin air intake.

SwampCatRuss

By SwampCatRuss
in Troubleshooting & Recalls

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Colossus
Colossus

The filter doesn't get dirty by sitting it the garage, it gets dirty when you go out and drive it

2015 High Miler
2015 High Miler

Old thread but this looks like a good option.to keep out rodents and debris:  

jbugj
jbugj

I found where the mice got into mine and this was my fix.  Haven't had a mouse in the cabin filter since.    

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mikepol2 Enthusiast

mikepol2

Posted
Posted

Slightly different spin on this topic...after the dealership replaced the cabin air filter I started noticing a whirring or tapping sound that goes away when you turn off the HVAC. Quickly found that it's the fan that sucks air down through the cabin air filter. I took the filter out and expected to see a leaf or something in there but can't see anything, doing my best with a mirror to see the whole way around. Anyone else run into this?

Half_ton Enthusiast

Half_ton

Posted
Posted

Slightly different spin on this topic...after the dealership replaced the cabin air filter I started noticing a whirring or tapping sound that goes away when you turn off the HVAC. Quickly found that it's the fan that sucks air down through the cabin air filter. I took the filter out and expected to see a leaf or something in there but can't see anything, doing my best with a mirror to see the whole way around. Anyone else run into this?

Yes. You have a piece of debris in the blower. I have large hands and my compressor didn't work, so I took the blower out and one tiny piece of leaf had fallen into the blower. I wish there was a relief cut above the filter so when it is removed it doesn't "Scrape" the leaves and other debris off and down into the blower housing. The black cover isn't fun to remove and one screw couldn't be reinstalled as the angle is jsut too sharp to get the screw back in with a driver on it, it resides in my glove box..... This last time I changed it, I again had a leaf fall into the blower, but lucky for me my air compressor got it out.

Crap design if you ask me.....

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Half_ton Enthusiast

Half_ton

Posted
Posted

Any advice or pointers on how to get the blower out?

remove the black cover above pass side footwell, then just remove the blower with a few screws and a plug. simple

  • 1 year later...
lrymal Senior Enthusiast

lrymal

Posted
Posted (edited)

Wow.... bringing up this old topic, but I never found an answer to the original question. Where is the cabin air intake? I changed out the cabin filter and found stems, whole leaves, lots of debris. I don't understand how those get inside the intake. There certainly are no openings that large by the wipe cowling where they could simply fall in. The only area that seems to collect large leaves is in front on the radiator area, at the bottom part of the grill. Lots of branches and large leaves trapped there.

Does anyone have an old service manual with a diagram of the HVAC?

Edited by lrymal
  • 1 month later...
TJP New Member

TJP

Posted
Posted

Hi Newbie here, 

I have a 2018 with the Mouse Motel problem and tried to open the pic at the top of this page(3) but  have not been able to. ??  
Does anyone have any pics, experiences or other help they'd like to share.

Thanks in advance

TJP

  • 1 year later...
mjr1084 New Member

mjr1084

Posted
Posted
On 10/24/2016 at 8:51 PM, TJay74 said:

No way a rodent is making into that intake system. It is on the wiper cowl.

Haha. Searched for a way to add a screen and came across this post. Here's my mouse I pulled out of the cabin filter.  http://imgur.com/a/cC1HgCE

  • 2 months later...
K-man New Member

K-man

Posted
Posted (edited)

The plastic cowl under the windshield wipers covers a type of tunnel area which houses the  wiper motor and linkages and also the air intake to the cabin blower motor.  This area is sealed against rodents and debris EXCEPT for vertical openings on the ends (between the fender and the ends of this channel). Plug these holes and you will stop rodents and garbage from going through the blower and plugging the cabin air filters.  We had squirrels/chipmunks dragging anything/everything in through this opening on a 2002 Sierra 2500HD. NOTE: leave small holes for drainage of water.  Eventually these small holes may plug with accumulated muck and you will have to remove your plug and clean out and reinsert the plug. A better fix would be to fasten a screen ontop of the blower air intake that is in this tunnel.  You can access this intake by prying off a panel on passenger side of this tunnel that is factory sealed with caulk and painted over. (Not obvious that it is a removable panel)

Edited by K-man
new info
  • 2 weeks later...
Adel New Member

Adel

Posted
Posted

I have a Dutch Shepherd that that is a Search n Rescue and travels in my 2014 Silverado and his scent gets in the vents when fan is turned on. Your answer still doesn't explain how his smell stays in vent system. I just changed cabin filter and it was disgustingly dirty and filled with dog hair. How is this getting into the circulation system? Where does the air inside the truck get brought into the cabin filter?

  • 6 months later...
G Lee New Member

G Lee

Posted
Posted

Changing cabin filter I noticed coming out it had loads of pecan shells and all kinds of crap on it.  Thought I got it all but some shells fell on the fan—-couldn’t get all them out of the fan blades so there’s quite a blade imbalance there.  Now I guess I get to pull the fan out and try to find my mouse access hole too.  Unless someone has a shortcut up their sleeve?

Black02Silverado Senior Enthusiast

Black02Silverado

Posted
Posted
18 hours ago, G Lee said:

Changing cabin filter I noticed coming out it had loads of pecan shells and all kinds of crap on it.  Thought I got it all but some shells fell on the fan—-couldn’t get all them out of the fan blades so there’s quite a blade imbalance there.  Now I guess I get to pull the fan out and try to find my mouse access hole too.  Unless someone has a shortcut up their sleeve?

Did you try a shop vac to get them out?

  • 2 weeks later...

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