Mice In Engine Air Box

[ldusseau]

I just changed both the engine and cabin air filters and I found evidence of mice in both. The left engine airbox had birdseed in both the filter and the bottom of the box. The cabin air filter had seed in it as well. They can't possibly be getting in the same way for both spots. How do I block them off?

 

[D.J.]

I just changed both the engine and cabin air filters and I found evidence of mice in both. The left engine airbox had birdseed in both the filter and the bottom of the box. The cabin air filter had seed in it as well. They can't possibly be getting in the same way for both spots. How do I block them off?

They can easily enter from under the engine compartment and easily enter the passenger cabin from the HVAC fresh Air event on the passenger side firewall.

Your best bet is probably some kind of commercially available "rodent be gone"

 

[Thomby]

How do I block them off?

They make little mesh bags of mouse repellent that I believe are basically wood chips and innocuous oils (peppermint, pine/cedar, lavender) which mice find annoying, instead of chemicals. You could probably toss one in each airbox, if you have cone filters (in case they shed dust/fibers...probably better to be ahead of the filter instead of past it).

They should also be safe in the cabin air box, you'd just have to test to see if you could smell whatever aromatic they use, and if so, whether you mind it.

 

[ldusseau]

They make little mesh bags of mouse repellent that I believe are basically wood chips and innocuous oils (peppermint, pine/cedar, lavender) which mice find annoying, instead of chemicals. You could probably toss one in each airbox, if you have cone filters (in case they shed dust/fibers...probably better to be ahead of the filter instead of past it).

They should also be safe in the cabin air box, you'd just have to test to see if you could smell whatever aromatic they use, and if so, whether you mind it.

I installed stock engine air filters so there's enough room to put the mouse repellent in the bottom of the box. I'll have to see where there's enough room around the cabin air filter for a baggie but the best thing will be to get them out of the garage in the first place. They already ruined my motorcycle helmet last spring and they're making a mess so far this winter. I hate to do it, but inside they're fair game.

 

[Snicklefritz]

A kitty cat, or even several. Let nature take its course.

 

[Thomby]

I'll have to see where there's enough room around the cabin air filter for a baggie but the best thing will be to get them out of the garage in the first place

Toss one in each corner of the garage too. You can even get cinnamon flavor.

 

[Buzzman12]

We have mice all over the neighbourhood. They are everywhere. I keep several traps in the garage at all times.
Just when you think you've gotten rid of them, another dead mouse shows up in one of my traps.
They reproduce faster than I can kill them.