Buzzing sound after hvac filter replacement

[Ghost10]

Swapped cabin filter with new one because this is what my cabin filter look like

It’s raining today and I decided to kick the heater on and noticed a notice humm
If I switch to cold hum is there but less bassy
If I turn down air it slows down.

 

[Doubeleive]

Swapped cabin filter with new one because this is what my cabin filter look like

It’s raining today and I decided to kick the heater on and noticed a notice humm
If I switch to cold hum is there but less bassy
If I turn down air it slows down.

pull out the filter you put in and see if the noise is still present with the filter out, if not then try re adjusting the filter placement

 

[Ghost10]

pull out the filter you put in and see if the noise is still present with the filter out, if not then try re adjusting the filter placement

Maybe it’s backwards ?

 

[Ghost10]

Damn and I just put all the screws back in last night before the work week started. Ah 5 screws ain’t that big of a deal

 

[Doubeleive]

did all of the old one come out? maybe something fell in there

 

[Doubeleive]

if the noise is still there with filter out maybe stick a air hose in there and try blowing it out

 

[Ghost10]

if the noise is still there with filter out maybe stick a air hose in there and try blowing it out

There was pine needles and leaves in there and I did use my shop vac as I removed the old one. lol it sounds like a airplane engine but on a subwoofer level and you can’t hear it outside the truck. Yeah when I have a spare minute I’ll pull the glove out and take out filter and see what’s up I have an inspection camera like a endoscope. I just finished the ditch light install

 

[Joseph Garcia]

I suspect that some foreign material is still in the fan housing.

 

[nglauer]

Mine makes a noise too, I'm not sure what is stuck in mine but it's not as bad as it was. I need to replace my filter, couldn't get one locally and never got around to putting a new one in.

 

[RB_Trucker]

While you’re in there replacing stuff might as well get the K&N washable cabin filter for our rigs if you plan on keeping truck long term. For the price it’s worth it. Compared to 25 for each throw away filter