Charcoal canister servicing, what's inside + new filter

[Airborne Janitor]

Pulled the charcoal canister from my MJ after realizing that there is a filter replacement for it, WIX 42998. Pulling the old filter is as easy as popping off the bottom cap and physically pulling the filter out.

 

 

 

Installation is just shoving the new filter in there. Very easy and inexpensive service job, especially if your filter is 30+ years old.

 

 

I did get curious and cut apart one of the spare cannisters I had just to see what's inside. I made an entire YouTube video about it that gives you more info than you'll ever need to know about these things. Be forewarned, I do cuss a lot. CLIFF NOTES: There's charcoal in there, and a couple foam screens.

 

 

[Ωhm]

Great video. Thanks.

[eaglescout526]

Yeah this is good info. I didn’t know there was a new filter. We all should probably change this. 

[Pete M]

added to the to-do list.  

 

 

[Ωhm]

6 minutes ago, eaglescout526 said:

We all should probably change this. 

 

Every 30,000 miles.

 

_fuel evaporation system.pdf

[Airborne Janitor]

51 minutes ago, eaglescout526 said:

Yeah this is good info. I didn’t know there was a new filter. We all should probably change this. 

 

$5 on amazon

https://amzn.to/3X3QrkQ

 

or $1.50 on rockauto + shipping. Cheap piece of mind.

 

 

[fiatslug87]

9 minutes ago, Ωhm said:

 

Every 30,000 miles.

 

_fuel evaporation system.pdf

[rokinn]

$3.19 at O'Reilly's!  Says in stock near me.

[ghetdjc320]

This is awesome! 

[Keri]

Awesome f***ing video!!! ;-) What is connected to the bottom of the Charcoal canister? I am chasing the issue of my A/C leaking into my 1987 Comanche's passenger floor board and have been hunting the A/C drain and just cannot find it! It appears to be connected to the bottom of the canister?????? Maybe I am super crazy or maybe it is supposed to be like that or maybe the previous PO did it but for the life of me, I cannot understand what is going on down there.

Thanks again for the video. I watched the entire thing and will def put that on my long list of things to do...
 

[Airborne Janitor]

Saw you got your answer on another post, but there's nothing but a tube that hangs off the bottom of the canister.

[J33ps]

Wait, just so I’m clear…you don’t ever need to replace the charcoal inside?  You simply replace the mesh screen piece?  I would think the charcoal degrades over time….mines probably original.

[AnotherOldJeepGuy]

Thanks for the video @Airborne Janitor.  Cool to see what is really in there.  I am curious about a couple things  and would like to hear the thoughts you and maybe the other experts on here might add just for fun.  One, might a heat gun work to melt the glue and get it apart without cutting?  The other thing is I am wondering how helpful it is to replace only 1 of the 4 "filters".  I get that the filter you access easily may be the only one that is officially a "filter", but it seems if the other 3 "filter like" foam pieces are still dirty, cleaning 1 of 4 isn't doing a lot.  Comments?