How to Test and Repalce an EVAP Canister HD 

I love how when folks do a show or a youtube video like this and when they spray the bolts it just pops off but when I do it I have to threaten the bolt and its family

I got one of these as a code for my check engine light that came on, I’ve replace the gas cap and reset the light. A week later the check engine light came back on for 3 days and finally went away. I’m new to fixing my own car wanted to self learn and make this a goal to learn trouble shooting my vehicle. Thanks for the great video..!

the best video on youtube for this issue. I blew by mouth from the pipe and it was completely clogged. Tomorrow i'm going to buy a cheap used canister and i'll check it with this way. Thanks a lot

The flow of air from one port to another just means the air can still pass thru. The carbon has to still be activated to do its job. Once the carbon is no longer activated you have to replace it.

Depending on the specific vehicle you could probably test it on the vehicle and save the removal and reassembly time if it's not bad.

Shouldn't you cover that hole also while your blowing to see if that canister is cracked ?

FYI you should also test from the tank side to the vent side with the purge capped, I'll seen these clog that way.

I love when you say “ very very excited” for replacing it :) same

Well the charcoal still needs to be able to absorb the fumes sufficiently as to not trigger a code. It's not just a matter of whether the canister is plugged.

Good job on your Evap troubleshooting videos. They are very useful. I'm a new subscriber to your channel. Keep it up. Thanks.

Love the location of your charcoal canister! That job should be a piece of cake! 😂

It’s sounds asinine but try using spray olive oil (for cooking). I used it once because i was in a pinch about 15 years ago and won’t use anything else now.

good to see if it holds a vacuum or air pressure no leaks from the seams.

thanks, I just went to a auto yards where you pull your own parts. took pictures of how everything is hooked up, pulled the part and replaced it on mine. still didn't take care of my problem. I've had the car for a month and replaced many parts, car still won't start. I'm about to push it in the river.

Could you have done that test while it was mounted?

No fuel smell, P0455 . new LDP, canister flow valve, new canister vapor solenoid. new fuel cap, still this code. Shop did a smoke test, no signs of smoke. 2004 grand Cherokee.

Thank you now I understand why my gas was spitting back at least I feel more comfortable knowing it's not going to explode and what's happening thank you very much Anna

what happens is no air comes out? How does a blocked charcoal canister negatively effect one's EVAP system? What specific codes , if any, will be thrown if the charcoal canister is blocked?

FROM CHICAGO EXELENT VIDEO. NOW CAN CHECK THE SWITCH CANISTER BY HOMS AND HOW PLEASE AND THANK YOU SO MUCH

I'm so glad I don't live up north being that I like working on cars. The underside of cars up north looks horrible with all the major rust. Not like that down in Texas!

Good info. Unfortunately, I already assumed that at 150k, the canister was plugged. Now that I find its working ok, guess I'll just return it to Amazon... Probly not the only time this has happened. Or should I just replace it anyway??? Or will in never go bad??? Its doing a slow fill at the gas tank...Just started with this tank of gas, perfectly normal fill on the previous tank.

Now that was a good video short and sweet make me a subscribe thanks for sharing

Man! I have a 2008 impreza 2.5i. Today i noticed cuel dripping from a hole in the center of the right fuel tank plastic protector cover. At first I thought it could be coming from around the fuel canister or one of it's hoses. But I think the fuel tank protector cover is not covering that fuel canister (not likely the canister). But now I think it's either than my fuel tank is rusted through (salt from winters), or the fuel pump assy is leaking (cracked plastic connector ?). Changing the tank is 1800 USD, so I will definitely going to check my fuel pump assy first (I recon the whole unit is around 400$). The thing is I see dripping and smell gas only just after filling up or when the tank is near full. Today I noticed that reving the engine cause the leak to manifest, becoming more visible, whereas when I cut off the engine, I'm having a hard time seeing any dripping at all. That leads me to believe my leak is fuel pressure-realted (hence more likely a pump leak than a tank leak). Man I really hope it's the pump assy and not a rusted tank !!! BUT for diagnostic purposes, IN YOUR EXPERIENCE, Is the fuel canister covered by the right fuel tank plastic cover protector ???? If not, it's not the canister leaking for sure.

Phenomenal video already subscribed I'm sure you'll show me other things that are helpful rock on brother

This checks for clocks but what about small cracks causing vacuum leaks?

Good to know... If that's all there is to test, then it can be done "in situ" by removing the 2 smaller hoses and do a blow-through test... Yes ?

I have a car puzzle mystery if any mechanics want to give me your input. There is a 2011 KIA Soul throwing a P0455 (large evap leak) code. We replaced the gas cap with an OEM KIA cap. I replaced the Canister Purge Valve solenoid. We ran smoke though it and saw no leaks anywhere. Took it to a Kia Dealership. They tested everything , bench tested the Evap canister , evap vent valve, gas cap , tested fuel pressure sensor and everything is checking out OK. But the P0455 code keeps coming back? The dealership said the Evap canister looks a little swollen but didn't show any signs of visible leakage. They said they could put a new Evap canister and evap canister filter on (which is 800 bucks) but cant guarantee that this will fix the problem. I was hoping that one of you on my friends list has gone through this or a mechanic might have a suggestion. Thanks

I have done nothing to the car and it came to me to be fixed. It's a 2000 Mercedes s 430. I'm thinking of changing the EVAP vent control valve but I was still like to know what causes that.. there is one video with the guy has the same problem with the same car but he hasn't found a fix either

If air blows in & out, does that mean the canister is not leaking air? Is it a good idea to submerge it under water except for the air openings and blow air through it? I'm trying to find where my small evap leak is.

Got a p2401 code. Already replaced the evap purge n80 valve and the gas cap so i guess this is the next thing ill check

The mechanic that checked mine he left it on the vehicle all he did was remove a hose when he did a smoke test and you could see the white smoke coming out of the hose is this the correct way to check a cars charcoal canister? I mean obviously if you were move a hose it's going to be coming out of the hose I don't know I'm a little confused about it. I didn't see any white smoke at all coming out of the canister or anything like that until he removed one hose

How come you didn't show you removing the 2 'mounts' or taking off the opposite end of the hose you left connecconnected ??

Thanks

2014 Toyota FJ Mine is making humming noise hours after bieng turned off any feed back greatly appritiate.

Excelente..... gracias por compartir esta información

You could have tested it with out removing it correct?

2009 Jeep Liberty Sport smells of gas when running, notice it almost every night backing into my carport where it smells stronger. Can smell a bit when car is off, EVAP canister or aftermarket gas cap? Also, P0455, P0456, and P0457 error codes, will check my EVAP purge valve Wednesday.

😒👍 Liquid Wrench Penetrating Oil, good stuff 😒👍

Can the vent side go bad? This wouldn't test that aspect.

THANK YOU

Thank you

Would I smell gas when I start my car if my canister is cracked or clogged

I have a 2013 bmw 328i evap code came on. Had the fuel vent valve replaced. Code still comes on. I do have a muffler deleat. What else could it be?

Great information, 2011 Tacoma, code 456(evap small leak) smoke test shows smoke coming from tube that is attached the gas filler neck. Gas filler was covered and OEM gas cap remove. Attached tube was left uncovered during test and smoke was coming out. Technician wants to replace charcoal canister. Any advise. Thanks

Do it suppose to be alot of air come out or very little when u blow into the canister because mines have air but not to much

Hey Guys. Enjoyed the video. AI have a question. I have a 2005 Prius that is having problems filling up gas. I tried Your procedure to test if the vapor canister is the problem. I did have air come out the large port. Has some resistance but air does come out decent. Have You guys any experience with Prius not filling correctly? I mean I can only get 3 gallons of fuel in it. Thanks

So then.. my charcoal canister is good?? Because I'm able to blow air from either side

do you need to relief gas pressure prior to removing any of those hoses?

I don't understand why you removed from vehicle, seems like you could test on vehicle

You didn’t check the vent valve 🤦‍♂️ it might be stuck open. That’s why the air flowed right through. Shouldn’t it be closed when car is off/no power to it? P0497

Thank you.

Great video! :) I have a 2007 Dodge caliber that sometimes smells in the area of the canister (driver's rear). Is this typical and does it need to be changed.

When I shift I can hear pressure release seems like it’s having trouble tho

Ok will do thanx for the video .

Incomplete test, because you didn't test the vent hose. If the vent hose was clogged, there will be no fresh air intake while the engine sucking vapor from the canister, this will lead the canister low pressure then sucking the fuel tank, nomally you can hear the sound when open the fuel cap, and a P0441 code.

thank you sir

Is your website not up and running anymore? I tried visiting it and it's just a generic domain page.

I hate this box, its in the way for differential fluid changes. Why they block the fill hole!?

Ugh. I just replaced the control valve and filter and I'm still getting a PO446 control valve code. It cooouuld be the purge valve but I have a hunch that I'm going to have to jack up and tear apart that assembly I just put back together. 😢

Should be the other way around fuel evaporative canister filter.

I did live data test. Normal is -35 to 50. Running it -1300. & Idel is -100 what do you think is wrong

Thanks for your videos. Will you also do one on how to track down a small EVAP leak (ie. P1440)?

Why take completely out? Couldn’t you disconnect hoses and blow with less trouble?

If ONLY it were just that easy 😂😂.

If I blow into the big hole, nothing happens. It pressurizes. If I block the small or medium hole and blow into the unblocked one, air comes out the big hole. Is this normal operation?

If only air should go through it, solenoid does nothing?

2009 Hyundai sonata, how do I remove a fuel tank pressure sensor from fuel pump. how is it attached?

Help please! I have a 2014 chevrolet equinox and I need to replace the vapor canister can you please tell me the steps involved or point me where I can find instructions on how to do it. Thank you

i have 2001 blazer p0440 code says its evap ststem and been stumped

Would this cause problems starting up? I have a 98 dodge dakota v6 3.9L. Sometimes it'll start up find then other itll have problems starting & I have rev it up alot till it kinda warms up but has a rough idle.

I have a '99 Expedition w/ a 442 code. I smell fuel too. I don't know if the fuel smell comes from through the A/C vents or from the canister in the rear of the vehicle. Could a clogged canister cause any of my issues?

How many years do they usually last? Got mine changed under warranty in 2017

Is the charcoal pellets supposed to fall out of the canister, when u take it off,

2002 Tacoma v6 with gas smell after shutoff. Already replaced cap, no issues at pump. CEL codes P00440, P00441 & P00446. Tech thinks a bad vapor canister?

New subs here!

no ice bin overfilling ur gas u need a new canister and clean ur lines out real good valume control need to open and clean maybe even replace my guess ur codes would bep1447 and p1446

I have a Vauxhall corsa and I can’t really blow through mine, is that a problem. Vauxhall Corsa D, built by Opel and GM

My 05 grand Cherokee isn’t throwing a code but when I try to fill the tank it stops 3/4 full and won’t take anymore. Could it be the canister you think?

why did the canister have to be removed to do the "blow" test???????

I have a 91 Honda Civic it has rough idle when I get to half a tank . Could this be causing the problem ? I already changed the fuel pump. Thanks

Hi. I got an p0499 code and says evap pressure high. Tested the valve and it clicked. Could it be the canister? Car sometimes stalls. 2006 Chrysler 300c hemi. Thnx for the video.

I'm having trouble filling up at the pump. I replaced the Evap. Vent Solenoid, but still having trouble at pump. I removed the canister drove for gas and the tank fills fine. When I blow through the tank side of canister and plug the fresh air side air moves through very easily. When I plug the line going to the engine and blow air through the tank side, it acts like there is a partial blockage and air doesn't move well at all. It does move but not well. Is this normal? My thought is no, and is why the pump shuts off. Any ideas? BTW I have a 2005 GMC Sierra

I have a 2004 dodge ram 1500 5.7l hemi and everytime I fuel up it over flow even when it does not have any gas. What could be the issue.?

If your car cannister is clogged will it make your car stall and act like it is out of gas

Is your name Rusty by the way? :D

I do not have a evap trouble code but when the car has been sitting after it's been driven gas is pouring out from the evap vent valve control. I need your help on what can be the cause? and do I have to replace the evap canister now because it is saturated with gas?

I have a p0446, thus far have replaced the purge and vent solenoid and gas cap. I checked my canister and air flows through it. Anything else I should check? I haven’t checked the fuel tank pressure sensor as it’s a new fuel pump and the pump came with a new sensor. I don’t have a scan tool to perform evap tests

So does it mean that the purge valve itself is bad?

Can I replace the hoses or is that something I should leave on? Thanks

theres carbon particles coming out of mine its a 98 pathfinder should it be doing that

Can you use CarbuCleaner or something like that to clean it up from inside?

Before removing the canister ( disconnecting hoses/lines ) do you have to depressurize the fuel system first and if so, how? Is it as simple as removing the gas cap? Does the battery need also to be disconnected before you start removal of the canister?

Hi, I got a 2004 honda crv , with code p1457 , should I change the whole Vapor Canister , or just the Vapor Canister Vent Solenoid. thank you

Your videos would be higher quality if you used a computer screen capturing device instead of just filming a computer screen.

i have 0443 code for my 2003 escape, I checked for voltage in the canister valve connector and theres no voltage.. check the 5amp fuse and it has power, any ideas what to do next?

My 2011 sonata 2.0t i barley drive with 59,500 garage kept has the po455 i changed gas cap, purge valve, Canister Vent Valve code came right back after 5 miles down the road what's next that i"m over looking?

Are they known to get cracks in them

The white can with 2 houses ?! What does it do ? What is it ? Thank you

I have a 2007 Audi S4 4.2 V8. I got a purge valve flow error code. I changed the valve but the code came back after a few weeks. I removed the valve an noticed it was completely clogged with charcoal. Is it my canister that is leaking charcoal in the system? If so how would I know, and if I replace canister how do I clean the hoses leading to the purge valve? Thanks for any help on this!

What is the proper voltage, going back to the ecm?