How To Perform An EVAP Smoke Test To Look For Leaks

[@GoTechTraining]

Hey guys, the laser light idea came from Cody over at Cody's Auto Diagnostics...check him out here! th-cam.com/channels/7AtpaCPv1QXYa-yE2sPQbQ.html

[@exmotorsports]

I was going to mention that..I think Cody watches a lot of CSI shows. Lol
Great Video Mike...Looks like this Quarantine has treated you well. Your face grew out and you seem to have a bit of a glow in the hair too. (: Cheers Bro

[@faridamccormick5537]

My,v

[@globalcommerce7654]

Nice video but honestly that machine is way too complicated! This one is so simple here, shouldmakea how to with it:
th-cam.com/video/4R4Q9Y-sW-s/w-d-xo.html

[@themanfromcabowabo1559]

If you don’t have a laser or you want a bigger area of light use a projection alarm clock. I did that as it was getting dark outside. Don’t know if sunlight is a factor or not.

[@billsfan1768]

This is a great EVAP smoke test video. I am a auto tech and I would definitely go to a class this guy was teaching.

[@kennethlowevideo]

Absolutely AWESOME tutorial! Very refreshing to get automotive instructions without also getting motion sickness from bad camera work. THANK YOU!!

[@GoTechTraining]

Hey Kenneth, thanks for watching!
Mike Becker, Senior Instructor

[@kimberlysmith3628]

@@GoTechTraining How long does it take to do a smoke test from start to finish? I have a P0440 code and a P1441 code, do you think that's a purge valve or charcoal canister?

[@ayyy9017]

@@kimberlysmith3628 purge valve

Typically outstanding fact-filled demonstration.
Well done, Sir Mike.

[@GoTechTraining]

Typical world-class comment, thanks James!!!
Mike Becker Senior Instructor

[@Thefox2000unit]

"I really appreciate you guys watching".
No, Mike. We REALLY appreciate your vids!
Fox
N/W Scotland.

[@GoTechTraining]

Hey Fox, without you guys I wouldn't be able to do this!!! I truly do appreciate each and every one of you! :)
Mike Becker Senior Instructor

[@StakzMusic]

Been working on cars for about 5yrs I done about everything and I hate evap codes! You broke it down perfect thank you

[@GoTechTraining]

You're welcome! Thank you for watching!

[@walter.bellini]

Mike, thank you for the really great walk-through, it was very informative!
I would have liked to have seen a real test on a vehicle that actually had a known leak that you knew where it was to see what it looks like.

[@Gary_in_NoVA]

Best video on Evap testing & smoke machine usage on U-Tube! Nice job!

[@radleybradford1356]

Agreed!!

[@themanfromcabowabo1559]

Hands down the best instructional video I found.

[@GoTechTraining]

Wow, thank you so much!!!
Mike Becker, Senior Instructor

[@AFineLineA]

Totally agreed!!! Very easy for a lay person to understand even!

[@ronijr4918]

You did a very great job on explaining this! Many videos just talk and talk and no actual showing. Cheers!!!

[@GoTechTraining]

Hey Roni, thanks for watching!
Mike Becker, Senior Instructor

[@AFineLineA]

Totally agreed!!!

[@cjlarson7642]

Thank for telling how to test for a Leak and setting up the Vent valve manually.

[@ronaldmahoney1283]

Your videos are Great! You explain everything in detail and show what equipment or tools that are needed!

[@northwestmechanic8991]

My friend is letting me borrow his smoke tester, thank you for showing me how to perform one.

[@monahumada7535]

Did you get it?

[@billyyoder8171]

Thank you Mike. Good job. Have a blessed and safe week to you and your family.

[@GoTechTraining]

Hey Billy, thanks a lot! You as well :)
Mike Becker Senior Instructor

[@jlcastille9017]

Excellent video with the perfect amount of educational information. I have seen too many videos from others that are either too long because they dwell on useless information or others that are too vague and don't offer enough information. Of course, I have seen some videos that give incorrect, bad and sometimes dangerous information. Those should be reported and banned but that is another topic. I thought your video was very educational, to the point and covered everything in a short amount of time. This is an excellent video, IMO. Congratulations and thanks for what I consider to be an excellent presentation. Also, I use a laser pointer and it has enabled me to find leaks that I may not have seen without it. Of course, I'm 60 years old and my eye sight isn't as good as it once was. lol

[@manuelduenas4742]

I agree with you JL

[@ridgerunner4420]

Thanks for a great video. It was very informative and well explained. I’m trying to troubleshoot a small EVAP leak and this was perfect for helping me understand how the system works.

[@seanrowland1670]

Fantastic walk through. Clear and concise. I have a PO442 error code on my 2012 F150 Lariat 5.0
I feel I can confidently now trace the leak. Thank you !

[@GoTechTraining]

Now that's what I like to hear Sean! Good luck with your diagnosis!
Mike Becker, Senior Instructor

[@kimberlysmith3628]

​@@GoTechTraining I had my fuel pump changed and ever since then my check engine light comes on with a P0440 code. I had replaced the gas cap and purge solenoid and it still comes up. Sometimes when I put gas in the check engine light goes away. Do you think the fuel pump was the cause because it started from there?

[@USSHammerology]

Gasket probably not seated properly.

[@DonBMW]

Very informative video and good instruction. Lost me with the $1,200 machine but appreciate the tip for closing the vent without a scan tool.

[@GoTechTraining]

Hey Don, thanks for watching! You can find smoke machines for cheaper. Sometimes used ones can be a great deal.
Mike Becker, Senior Instructor

[@A.C.71]

@@GoTechTraining I found one for 100 bucks but not sure how to close the vent solenoid since my scan tool is autel md806 pro and I don't think I can use it to close it as your snap-on did. direction on how to do this would be great.

[@robbanta2979]

@@A.C.71 Use a hose clamp to pinch off the vent line at the solenoid.

[@pirihern9329]

Need bidirectional scanner

[@AFineLineA]

​@@GoTechTraining Thanks for the used ones tip!!!

[@wyattoneable]

Yes, I believe Cody was the one who suggested using a laser light to Mario. Awesome tip. Great lesson Mike.

[@codysautodiagnosticsprogra8706]

Thank you Wyatt!!

[@GoTechTraining]

I added a pinned comment to give credit where it's definitely due :)
Mike Becker Senior Instructor

[@throttlebottle5906]

I think I mentioned using them on SMA or other a long while back, but sometimes I get going on comments far too much lol

[@AFineLineA]

​@@codysautodiagnosticsprogra8706 Thank You for the laser tip!!!

[@anthonysova7117]

Like always a very thorough explanation CHEERS enjoyed the stepped procedure

[@GoTechTraining]

Hey Anthony, thanks for watching!
Mike Becker Senior Instructor

[@depthbrewedrollers.8793]

Thumbs up from me, specifically for the last part when you mentioned about intermittent problems. Good vid.

[@GoTechTraining]

Thanks for watching!
Glad you enjoyed it!
~Ryan

[@nicknicu1787]

If you’ve watched all of Mike’s videos on the EVAP system and you still don’t know how it operates,you either haven’t been paying attention or you have a comprehension problem.
Great video as always Mike! 👍

[@GoTechTraining]

Hey Nick, thanks for watching! Some people just need things explained in a different way :)
Mike Becker Senior Instructor

[@Lost_souls_lose_freedom]

@@GoTechTraining Perfect answer! it's easy to think that you've explained it to a point everyone should understand and if they don't then they must just be an idiot. A true teacher will look at himself and find more ways to explain it until everyone gets it. understanding that everyone learns differently! i've seen the light bulbs in people's minds come on in real time by finding that specific way for that specific person and it's a truly awesome thing to witness!

[@maxrpmstuff]

Very well done, Mike .... Thorough information and presentation easy to follow details. Thank You!

[@mikechiodetti4482]

Another great diagnostic video Mike. I seem to remember seeing some smoke machines that had duel smoke test modes for evap and other areas/parts.
Anyway, good to see you again, take care stay well.

[@GoTechTraining]

Hey Mike, i've seen them as well. Like 2 machines in one. Thanks for watching!
Mike Becker Senior Instructor

[@TheNYgolfer]

You are good. Great communication skills. I see teaching in your future

[@jamesdrury2016]

Hey Mike with the Magic Smoke Good one See Ya soon I hope

[@GoTechTraining]

Hey Jim, how to properly use that magic smoke ;)
Mike Becker Senior Instructor

[@pirihern9329]

Autool st206 .$ 289.00 have had for 4 years . Works fine for me retired 67 with very limited income. Have found and repaired a po442 and po456 on my 06 subie sti . Also used to find exhaust leak on 99 toyota rav4

[@GoTechTraining]

Hey Piri, sounds like the tools done you well!
Mike Becker Senior Instructor

[@pirihern9329]

You do need a psi regulator to restrict psi pressure. I keep it at 1 to 2 psi

[@themanfromcabowabo1559]

If you don’t have a laser or you want a bigger area of light use a projection alarm clock. I did that as it was getting dark outside. Don’t know if sunlight is a factor or not.

[@pablomarquez4431]

Wow thanks man. Out of all the evap videos I've seen you answered my question. Hopefully I can now figure out my p0441 code.

[@jasonmurawski4917]

Great video and was the best articulated explanation I needed to verify what I thought I needed to do

[@mikeburton1733]

Great video Mike. Never thought of the laser light before. Will try it next time. Stay safe.

[@GoTechTraining]

Hey Mike, thanks man! Hope all is well in Canada :) you stay safe as well!
Mike Becker Senior Instructor

[@waynebeaver4096]

I feel educated after watching this. Nice video!

[@GoTechTraining]

Hey Wayne, thanks for watching!!!!
Mike Becker, Senior Instructor

[@codysautodiagnosticsprogra8706]

Great video Mike! I Like the home garage videos, keep it up

[@GoTechTraining]

Thanks man! Check out the pinned comment. I believe I've now given credit where it was due :)
Mike Becker, Senior Instructor

[@ro-landocalrissian4633]

I’m curious, is the code for the evap canister the same as the code for anything else including a gas cap problem?

[@GoTechTraining]

EVAP codes can be a pain...Never trust what the code says at face value. Always test the system as a whole.
~Mike

[@ro-landocalrissian4633]

@@GoTechTraining thanks..it says “Gross leak” by the way..

[@ro-landocalrissian4633]

@@GoTechTraining turned out to be the sensor only..

[@arbez.nation]

Mike, Mike, Mike, I need more shirts. We need a final Jeopardy question.

[@GoTechTraining]

Hey man, I hear ya! I have them all here, pocketed and not pocketed! Just need to put something together and go live once lockdown is over ;)
Mike Becker Senior Instructor

[@joshuaatkins5197]

I appreciate the video and it was very well done. If I could make a request it would only be that you zoom in and show the actual thing you're holding up in your hand, or show a separate shot of it sitting on a workbench so we can see what it looks like up close

[@garyspitzervoiceoversproje6537]

What adapter do you use to hook up to the evap service port?

[@georgeruiz1048]

Great info. Thank you and the laser light is brilliant

[@radleybradford1356]

TH-cam, put this video at the top of the SEO algorithm

[@f41lurizer]

This is an amazing tutorial, thank you!

[@blastforyou]

Hello Mike,I have a 2010 F150 4.6 that has error code 466 and 455 and when I checked the Evap vent solenoid by applying voltage from separate battery source it functioned normally. When I checked for reference voltage at connector with key on engine off i had 0 volts.I checked the purge solenoid connector and had 12 .15 KOEO. Both of these sensors should have 12.15 volts from parallel connection (same green wire color)when key is on and PCM controls switching thru ground side. This failure of canister vent would also explain the 455 (gross leak) code wouldn't it. I am right to just focus now on looking for break in circuit. Thanks for great video.

[@chriscadman5715]

As always, excellent and informative. Thanks!

[@wyattoneable]

Mike is teaching, everyone be quiet. :)

[@GoTechTraining]

Haha thanks Wyatt :)
Mike Becker Senior Instructor

[@nasserkaouk]

Very good video on evap testing

[@carlossoto6623]

Very great detail buddy, thanks!

[@GoTechTraining]

Thanks Carlos!
Mike Becker, Senior Instructor

[@AFineLineA]

Totally agreed!!!

[@stephenrose8188]

Very good and informative video Mike, thank you!

[@Kentucky-bz6pg]

Great video. I have a 2019 VW Jetta. I'm smoke testing and see smoke coming out of the round vent next to the canister. The vehicle is turned off. Is this a sign that the valve is open and bad?

[@diydiy5883]

Thank you so much ! this is the video for my DIY evap test

[@GoTechTraining]

Hey, thanks for watching!
Mike Becker, Senior Instructor

[@rosslawrence4628]

Thanks for the video. $1500 for a smoke machine! Yikes. I built a DIY one with parts I had around the house, and made a video of it. Laser light tip is a great idea. Good to know that some cars have a self evap test... didn't know to check for that.

[@GoTechTraining]

Hey Ross, yeh 1500$ is a steep price. But for a mobile tech or something along those sorts, it's worth it. It'll earn 10 times that in it's lifetime.
Mike Becker Senior Instructor

[@mikeburton1733]

Hey Ross. Maybe you already know this but still worth sharing. After i made my first one i got a good tip from Keith at New Level Auto. He said if testing evap system with the homemade smoke machines to disconnect the machine from the car BEFORE shutting off the air supply. That way you dont get fuel fumes backfeeding into your heater apparatus causing any accidents/injury. Fantastic advice. I still do that even now with my Smoke Pro machine.

[@AFineLineA]

​@@mikeburton1733 Thanks for the tip!!!

[@AFineLineA]

Same on the self test. Will search that out.

[@Mike-kz9so]

I don’t have any fancy scanner to close the vent valve. Can I disconnect and pinch the hose completely closed where it connects to the vent valve and then run the smoke test? (Assuming I know the vent valve is not the problem). Thanks

[@GoTechTraining]

Hey Mike, sure you could do that. Like you said, that's assuming the vent is ok. You're taking it out of the system at this point.
Mike Becker, Senior Instructor

[@Badwolf6466]

Good job. I refill my machine with baby oil. A lot cheaper and smells good. Another thing is I bought a smoke machine for smoking intakes for vacuum leaks. Much cheaper than a evap smoke machine. You just have to add a inline check valve so gas fumes cant back flo into the machine. And test the check valve before each use.

[@AreaCode862]

Great video but you lost me on the part with manually closing the vent valve. Are there any other videos you have showing what you mentioned in the video?

[@obiwan19771]

Thank you for the video! It was a big help!

[@chrisc6874]

Great video. Just the info I was looking for. Thanks

[@robpaul7900]

I have a 2001 Silverado 5.3l what do you think my leak would be from p0442 small leak only turns on every other week or 2 weeks what would you guess that's coming from if you had to guess?

[@gregjones8501]

Great video! Confirmed a lot of my suspicions with Evap systems and I actually just had an accord with a p1456 and after running the Evap function test it failed. I pulled out the smoke machine and smoke tested them system hoping the cvs valve or two way valve would leak and nothing. Ran another function test and it passed!🤦🏽‍♂️ Couldnt get the system to act up again! They can be bothersome when it comes to intermittent problems

[@GoTechTraining]

Hey Greg, thanks for watching! Ahh the good ole' intermittent EVAP leak...yuk!
Mike Becker Senior Instructor

[@canadianintheend]

He really explained everything that anybody can understand. Having my car checked for the third time now.

[@tonykari5124]

Is it common to NOT have any codes thrown but have a to lean pending code (2187&89)on the OB2. I ask only because I think that I have a leak up front someplace because I CANNOT get my EVAP or secondary air to get ready for the emissions test. My car runs / drives perfectly btw.

[@TheDisgruntledMechanic]

Great video and information Mike. Thank you.

[@GoTechTraining]

Thank you for watching!!!
Mike Becker Senior Instructor

[@emanuelcalderon]

what does the vent in a scion xb look like? and can you just seal it up just for the test?

[@eddietime08]

Great video, I smoke tested my 2009 pontiac g8gt and I have to use a latex glove and ty-wraps to seal of the throttle body. Shouls I be getting smoke out the throttle body. Perge valve is closed and vent valve is close.

[@Snekul_Xfire11]

When I do a smoke test, smoke is pouring out of my EGR diaphragm. Is that normal ?

[@luismarty1685]

Thanks Mike. Well done.

[@vegasdevl84]

Super clear and concise tutorial. Thank you! Subbed!

[@GoTechTraining]

Hi Diab,
Glad you like it, thank you for supporting the channel!
Ryan Wilsing

[@websurfer1585]

Great info, thanks. I have a 1991 toyota celica that i want to check through, it smells very rich whilst warming up, has poor fuel economy, and there is always a rush of air when i remove the gas cap to fill up, is this normal? Otherwise, it runs well, plenty of power etc?

[@sketchystuff5917]

Need some guidance here, I did a smoke test for vacuum leaks on my Ford and one of the places smoke was coming from was the vent holes on the bottom of the diaphragm part of the egr. The smoke isn’t coming through the little vacuum line though, because that still holds vacuum and opens and closes the egr properly. The smoke is coming through the intake side of the egr. Further investigation showed that I could suck a decent amount of air through the egr even when it was closed. Anyone know if this is supposed to vent this way? Any guidance or advice would help a lot

[@ruffriffing247]

very well made and informative 👍👍👍

[@GoTechTraining]

Thanks Ruff Riffing!
Mike Becker, Senior Instructor

[@AFineLineA]

Totally agreed!!!

[@PhillyDee215]

That machine will be so convenient!!!

[@GoTechTraining]

It really is Philly...it's my favorite smoke machine by far.
Mike Becker Senior Instructor

[@lala-love1272]

Please answer my question. I have a P0456 code and even with smoke test, mechanics cannot locate the leak. My question is does smoke test specify the location of the leak?

[@alb12345672]

I was working on my 96 Explorer, Had a P0455. Turns out the 1/2" steel evap tube from the purge valve to the canister was full of rust holes :lol:. I was smelling gas. I recently replaced the tank too. Going to replace with a 12' rubber fuel line.

[@AFineLineA]

Thanks for that tip!!!

[@ChevySS1968]

Thanks for the vid! I'm confused about the vent solenoid. Why is the vent solenoid 'open' with engine off? Do you mean it's open to the air? That would defeat the whole purpose of the EVAP system, lol. Or is it simply open to the EVAP system? And if it is open to the system, wouldn't you want it that way for the test?? I've got my new smoke machine coming tomorrow (8/29/2022), so I want to do this right. This dang P0442 code is driving me nuts!

[@GoTechTraining]

Hello,
The vent solenoid is open unless the vehicle is testing the system for leaks. This is because the fuel tank needs to vent with the expanding and contracting associated with temperature change. This ok be cause all the venting must first go through the charcoal canister to be scrubbed before entering the atmosphere. The system checks for leaks because if there was a leak, hydrocarbons would be able to vent from the tank without first going through the canister. To smoke test the system you must first close or block the vent solenoid off. I hope this helps and good luck finding you leak.
Ryan Wilsing, Technical Instructor

[@ChevySS1968]

@@GoTechTraining - Thank you! It's impressive watching you effortlessly go through the diagnostics and repairs. Well done!

[@AFineLineA]

​@@ChevySS1968 Totally agreed!!! Knowledge means less to get flustered about. Glad to have found this video. It answers a lot. :)

[@Snowdog216]

Great info, thanks. Maybe someone can answer this. My understanding is the entire purpose of the EVAP system is to prevent gas fumes from going into the open air, ie outside the tank. And in fact those fumes are trapped and drawn back into the engine through the purge solenoid, and burned like fuel. Which was the first thing referenced in the video. So why is the vent solenoid in the Open position? Thanks.

[@lonetraveler5660]

Mike, I have 09 s80. I monitor the EVAP-flow while driving. Its reading is 0.36 g/s. Is it normal? Is it should be 0 at most of time? No DTC code, but mpg dropped from 25 to 21 recently. Long term fuel trim is about 5-6%. Thank you

[@GoTechTraining]

Hello,
I believe that scan tool pid on the s80 is showing calculated purge flow volume. It is normal to have that amount of flow while driving. 5-6% fuel trim is not bad either. If your after a recent MPG drop, I would start by checking fuel quality.
Thanks for the question!
Ryan Wilsing, Technical Instructor

[@lonetraveler5660]

@@GoTechTraining thank you for your reply and knowledge. There was no check engine light. There is gas cap message after filling up gas. I do see a p0445 via vida. Clean the gas cap. Tested and cleaned the purge valve. Applied some rubber conditioner. Then the code becomes p0441. Reconnected the purge valve 2 days ago. No code so far. But mpg is still 20-21, was 25 mpg couple weeks ago. There must be a leak somewhere.

[@terminaldiagnostics5576]

Nice one Mike as always good info as normal enjoy the videos more brain teaser nxt keep my mind active in lockdown cheers

[@GoTechTraining]

Hey Terminal Diagnostics, brains going to mush during lock-down, huh? haha!
Mike Becker Senior Instructor

[@AFineLineA]

Totally agreed!!!

[@salmanalmahal5373]

That is fantastic video. Thank you 😊

[@Vevxo]

Question. I ran a smoke test and there’s smoke coming out around the gas cap. It’s a brand new cap and there’s no cracks on it. I also have no EVAP code but I do have two lean codes. P0171 and P0174

[@GoTechTraining]

Hey Darvin, Thanks for watching! Interesting. So an evap leak back by the gas cap won't cause a lean condition. I would fix the lean condition first before spending time on an EVAP leak that may or may not actually be a problem.
~Mike

[@MrAjd1982]

I've replaced that exact purge valve solenoid for 2016 traverse twice now. Same result for both times, engine light will stay off for a few weeks and then throw the p0496 code again. Any ideas/recommendations? I haven't replaced gas cap yet, guess that would be the next cheapest. However, what would cause a new purge valve solenoid to work like it should for a few weeks and then get stuck open?

[@netroel]

When I used my scan tool to do the self test. Evap system the gas cap was doing noise, maybe because I have a vented gas cap, but the tested passed ok. The problem I'm having is that my car has trouble starting in hot days, and also after filling the tank. What it could be, it's toyota Corolla 2003 engine 1.8

[@GoTechTraining]

Hey Rocky,
I would check your purge solenoid for sticking open.
~Ryan

[@rmzstudio8229]

How would you use a smoke machine to figure out a p0171 p0170 code on a Honda ? Where would you connect the hose of the machine to? The intake or another place?

[@johnbriggs7514]

Super helpful. Been chancing an evap leak in a 2004 Corolla for a while and I didn't understand the vent valve was normally open or how to close it.
Any guess what the least expensive scan tool is that has the ability to close the vent valve and read the pressure?

[@GoTechTraining]

Hey John, thanks for watching! I would look into options from either Autel or Launch.
Mike Becker, Senior Instructor

[@MrBufordWilson]

If the vent valve is normally open, what prevents the gas fumes from escaping to the environment there. Through the open vent valve.

[@chickballz313]

I just did a smoke test from the purge valve and after about 30 seconds fuel was leaking out of the filler neck. What could that be? I was thinking a saturated canister

[@throttlebottle5906]

strobe lights are good for lighting and watching smoke too or hillbilly it with timing light (lol) but having variable speed strobe is good

[@GoTechTraining]

Interesting, you find a strobe light better than a regular light?
Mike Becker Senior Instructor

[@throttlebottle5906]

@@GoTechTraining I think it's easier to see smoke moving with it "freeze framing", it's about like watching injection patterns and vibrations with strobe lighting also.
you can watch belt harmonic vibrations as well as many others things with your naked eye that way, kind of like poor mans super high speed camera frames being reviewed.
of course being able to vary the strobe speed or synch. it helps a bunch(downfall of the timing light)

[@Lost_souls_lose_freedom]

smoke testing on a 2013 silverado 1500 LMG. P0446 code. applying smoke behind purge solenoid as you did i have smoke in the tank but not at the vent valve. I disconnected the line from the canister to the vent valve and still no smoke. does this suggest a plugged charcoal canister???

[@GoTechTraining]

Yes it sounds like the canister could be plugged, to prove this I would take the hose off the canister that goes to the tank and see if smoke comes out.
~Ryan Wilsing

[@TC-en7vi]

Thanks for the video! Sorry I didn't get if the car has to be running to perform the test. I have a 2003 Kia Sorento, but I'm not sure were to put the hose...!?! Thanks

[@ronaldmahoney1283]

How much is enough pressure to pump in the system? You said you shouldn't"t put more than 2 psi! I"m confused by what you said!

[@SwedishHunter77]

Please I have question, since check engine light comes on after long investigation in Toyota/ sienna2021, do you have an idea if the smoke comes out thru rounded plastic(Vapor Canister Filter) has small fins this located around the filler neck by fuel cap ? Is that leaking or normal during smoke test ?

[@jonleone777]

I have an 06 ram 1500 that has a strong gas odor at the rear drivers side wheel well where the gas tank is. I dont see a physical leak of any kind from the various connectors on the tank and have no check engine light. Any ideas.

[@chevylover432]

Sometimes if you put some ac dye and perfume in the oil it makes finding the leak easier

[@GoTechTraining]

Perfume? I don't think i've ever heard of that. Interesting thought!
Mike Becker Senior Instructor

[@lewis2553]

@@GoTechTraining Can you smell it over the gasoline vapors?

[@williammason7092]

Eric o from south main auto had a video out were he used one it worked great

[@michaelwellner8151]

Great job young man.

[@marlenemcmillan8891]

Now i know what my mechanic will be doing on my car...🙂

[@GoTechTraining]

It's nice to be informed, isn't it? Thanks for watching Marlene!
Mike Becker, Senior Instructor

[@marlenemcmillan8891]

@@GoTechTraining it's very helpful..

[@ihatehandles111]

Can anyone share how much it should cost to get an evap smoke test done? My mechanic is quoting me $170 and it seems high considering that doesn't include the price of patching any leak. But I don't know.

[@neverstoplearning382]

Thanks a lot for sharing knowledge. Regards sir.

[@GoTechTraining]

Thank you for watching!
Mike Becker Senior Instructor

[@rogerchabot8684]

i connected to the purge solenoid hose going to the back solenoid that is completely disconnected hose and all and pressure is building up and no smoke is coming out and gas cap is out

[@MasQueAutosRD]

Hey brother one question, you mention that the vent selenoid has power all the time. Does that include when the car's switch is OFF?

[@GoTechTraining]

Good question!
No it only has power with the key in the ON position

[@sesparza5020]

What if after performing the smoke machine test and it has no leaks? But it still says large leak

[@GoTechTraining]

Hey S Esparza, thanks for watching! So maybe you're dealing with an intermittent problem? Or, how are you forcing the vent solenoid closed? Are you pinching a hose off? Maybe the vent isn't closing electronically? Also, where are you hooking up the smoke machine? Could the leak be on the other side of where you're hooking up?
~Mike

[@beatrizcordero6255]

thanks for these info , i was told you only need to turn the key an on position and the vent valve will activate but i guess that is a lie !!!!! so you need a scaner to close the vent valve and then use smoke machine .. thanks again

[@GoTechTraining]

Hello Beatriz,
You can also manually close the vent solenoid by supplying it power and ground if a scan tool is unavailable.
Thanks for checking out the video and reaching out!
~Ryan

[@GoTechTraining]

Hey Beatriz, thanks for watching! Right, the vent solenoid will only close when the computer is attempting a system leak test. Using a scan tool or power and grounding the solenoid are the only way to force it closed.
~Mike

[@Fordgroup00]

Thanks! Very helpful 👍

[@GoTechTraining]

Thanks for watching and supporting the channel!
~Ryan Wilsing

[@wild8757]

When does the vent solenoid close on its own? When it’s running or when the engines off?

[@jayymaxx]

Okay thanks I will just change my gas cap before continuing past :44 of this video lol