How To Test Evap Purge Valve is Good or Bad (No Tools Needed)

A quick way to test if the Evap Purge Valve is working or has failed.
Read here for more information: www.backyardmechanic.org/how-...
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By using this information user assumes all risk of use.

[@tylerblack9220]

Short, to the point, easy to understand. This is exactly what type of car repair content that we need on KZbin! Thank you!

[@rustyd5070]

Exactly! We don't care about a life history.

[@kevinmizhquiri5865]

Amen 🙏🏽, short videos are always the best, this guy deserve more subscribers 🫡

[@lethalchaos19]

Thanks man thats the same sound when i first started my mitsubishi lancer 2005 i got an error code P0456 small leak i already replaced my gas cap in the orignal dealership gas cap but i still have this error… is the symptoms sometimes im loosing power when i press the gas rapidly like chocking is that one of the symptoms? Also the sound u is same as my lancer. Thanks man for this short video!!

[@justinsoderberg5660]

Yes short and to the point

[@GOGO14234]

That right comment in the entire section , thank you sir

[@JohnDoe-uv3rr]

It’s always cars guy who make videos that get right to the point.

[@Jay.Walker]

Only guy that said car needs to warmes up to valve test. Everyone else has folks checking plugs, fuses, etc. Thank you for posting.

[@sonjacuti2627]

Well you should check fuses etc.. before buying expensive parts

[@fastrivers812]

When I was younger my grandpa had me pull his finger to test his purge valve. It was always in working order, his rear end made a noise every time.

[@T4k013]

😄

[@arcademania7544]

🦙💨

[@bigdoog9870]

bro that was so funny you had me going there lol.

[@michaelmartinez9602]

Omg 😂😂

[@ericandrews1661]

Yes this is exactly what my father and I found yesterday. I wish we had found this video before then but is helpful to see even now.

[@Rody_le_Cid]

no nonsense about your life story and to the point, awesome video, subed

[@YamahaC7SRG]

Thanks, that was great! If you don't want to wait for the car to warm up, you can remove the electrical connector on the valve and clip a wire to each of your battery terminals. Carefully touch the other ends to the electrical contacts on the valve. If the valve is good, you'll hear a clicking sound as the solenoid moves.

[@danielmalloy6093]

Yu can use a 9v battery also.

[@contouraerials]

doesnt matter positive and negative on the connector?

[@waldolemmer]

​@@contouraerialsYes, it's a solenoid

[@louisthibault555]

Dude, can you make a video? I’m too dumb to confidently do this after reading words 😉

[@stephenenright8428]

On the e240 merk there is another purge valve on the side of the fuel tank to the canisters grate video

[@gutzkinq]

this was absolutely the best automotive "diag" vid ive ever seen,, , brief and to the point- easy to understand. thank you a ton! gonna go test this out on my galant

[@jakethesnakev1121]

this video is super helpful, thanks for explaining how each part worked and how the whole system is kinda put together. it really helped me get an understanding of what’s going wrong with my car

[@Nichole-xs3ot]

Awesome video! Thank you! Concise, to the point, and great camera placement! This will really help me either confirm or mark off why I’m getting an evap code.

[@Javii96]

Excellent video thank you. No need to waste money on a part thats good without testing first

[@prabhakarrao4922]

Simple & to the point. Great video.

[@omegahyperes96]

Excellent! Thank you for this concise information, Sir

[@chaidezrigo]

This is the exact noise my car is making. Thank you very much my friend! 🍻

[@anthonybrown3481]

Man, I want to give you a hug for that. Thanks.

[@lldadb664]

Great video. Thanks!

[@behunin1963]

Brilliant & simple! 👍

[@B.F633]

Very helpful tip. Thank you

[@dantesmith3664]

Another great video. Thank you sir

[@danwinmanalang25]

Thanks for the tip👍👏 How to trace a big leak from the Vapor canister?

[@Frank289100]

I HAVE A 05 MERCURY MARINER. USING YOUR VIDEO HERE AND EVEN THOUGH IT'S FROM ANOTHER TYPE OF VEHICLE, I LOCATED MY PURGE VALVE AND I WILL PERFORM THIS EXACT TEST. IF IT'S BAD I WILL REPLACE IT. MOST OF ALL YOUR VIDEO HERE WILL SAVE ME THE TROUBLE OF GOING UNDERNEATH THE CAR NEAR THE GAS TANK AND CHANGING THE VENT SOLENOID VALVE WHICH MAY STILL BE GOOD. IF THE PURGE VALVE TURNS OUT TO BE BAD. THEN I KNOW IT'S NOT THE VENT VALVE UNDERNEATH THE GAS TANK. THANK YOU VERY MUCH FOR POSTING THESE TYPES OF VIDEOS. IT HELPS ELIMINATE A HEADACHE AND IT HELPS PEOPLE KEEP UP ON THE MAINTENANCE OF THEIR CARS. WHO HAS TIME TO TAKE IT TO A MECHANIC AND YOU GOT TO LEAVE THE CAR THERE ALL DAY WHEN YOU NEED TO USE YOUR CAR DAILY. AND IT'S A TOSS OF THE DICE IF THE MECHANIC IS HONEST OR NOT..

[@gt_drew2258]

ALRIGHT BROTHER LET ME KNOW WHAT HAPPENED

[@Frank289100]

@@gt_drew2258 I REMOVED THE PURGE VALVE ON THE FIREWALL AND RAN DIRECT POWER TO IT AND IT'S FINE. THEN I DID A ELECTRICAL TEST AND FOUND THERE IS NO CONSTANT 12+ POWER THERE. I HAVE TO ALSO CHECK IF THE COMPUTOR IS SENDING THE 12- SIGNAL. I WILL LET YOU KNOW HOW I MAKE OUT AFTER I LOOK INTO IT FURTHER.

[@Stizzedd]

HOW DID IT GO???

[@Strumdude]

😂😂

[@mrfuel1866]

Thank you buddy...excellent video

[@Johnsmith-yv8tx]

thank you for your information so useful!!

[@buttdreads]

Top notch video, thank you.

[@cayilo2]

Thanks bro, nice explaining.

[@johnnyowens6757]

A effective to the point video , thanks

[@dannysautorepair]

Great video

[@WerkToday]

Thanks, What engine was this test done on?

[@georgegarner1775]

great job. it is so easy when know what you are doing. thanks!!!!!!!!!!!!!!

[@toddcornelius5817]

Very good information thanks 👍

[@endurofan9854]

oh and here i was thinking it was on the opposite like it opened on first start to aid for the fuel and then closes when the engine warms up 😅 thank you for clearing that up

[@patrickedgington6189]

Thanks this video just showed me how to test this and save me money, really thank you

[@Michaelobama184]

Just buy it. Mine cost 15 bucks and I also replaced the gas cap. Tacoma truck 253,000 somethings gotta break.

[@jdubs1007]

Excellent Video!!

[@shanebyrd8625]

Should it have constant power with key on to the purge valve plug?

[@vitalgambit6641]

Awesome video easy to follow

[@richarddiaz8248]

Thanks so much

[@_TheHSG]

brilliant video

[@aaaDKaaa]

Question: that blue part at the top should be connected to the purge valve?

[@carlodonnell146]

when the engine goes into close loop is when it starts operating and the fuel trims will go a bit rich because of the extra fuel vapors thats pulled in.

[@scottphillips2023]

Would this be the same part to cause overpressure in the fuel system or something else? I have a small evaporator code and getting horrible fumes from the tank area and also noticed my tank is wet and fuel dripping.

[@wildside1951]

Would checking resistance on it work too? Mines got no resistance on it

[@gibson7654]

What if it works intermittently? When I started the car (2008 mercury mariner hybrid) it would not suck even after warming up. The car was higher than normal on idle and the p0455 code came in. I have checked voltage on the connector and I was getting 14v. When it went down to 13v I plugged it back to the valve and it started sucking. The engine light went away. Is the valve the issue or should I look elsewhere?

[@bridgeboy9256]

Does the motor have to be cold? I haven’t drove in a hour or so but motor still has heat is it going to work the same?

[@mohamadkilani2599]

Hello friend when the engine going warm, does the Files when you touch it in your finger you feeling like little vibration (the valve )is that normally or not thank you

[@Jralls3]

Great video 👍🏿

[@bebettertryharder5338]

Thanks bro... this helped

[@bubbiethecat5435]

Thank you so much my car keeps saying I have a Evap leak and we have tried 2 different gas caps so it’s not my gas cap so just trying to figure it out on our own so we don’t spend a ton of money getting it fixed in a garage

[@user-eu2tj2ti8c]

What if it’s the hose how do you remove the long hose in the front if you see it cracked

[@QasimMaqbool]

Thanks dear, bless you.

[@inhocsigno9151]

Good check, but note that GM does a evaporate test on cold start and passes vacuum to the evaporation system. If the system does not hold vac or is not vented quickly on Vent, or build vac, codes can be set.

[@user-kz1mz4hq3i]

Great Video Suggest a zoom out to show where in the engine compartment to find the purge valve

[@steve9326]

these valves are in different locations based on the make\model ect..

[@mrayco]

❤❤❤ awesome quick and easy

[@mrcountit]

Sweet! Thank you!

[@pourtierbeatz7804]

Would this cause my car to feel like i lost a cylinder or two if its bad solenoid? I got a code for the purge flow but not sure if thats whats causing my car to feel very slugish

[@cjwittmeyer]

what car is that where the evap valve is right on top for you? I cannot find it on my 2009 subaru outback

[@hjhshoms2545]

I have watched videos on replacing the purge valve on Hyundai's but none show the exact location of the purge valve and how to get to it.

[@patrickrobinson317]

Thanks for making this Bro !!! 😀😀😀

[@mohammednoah6813]

Thanx , good job

[@Royalti20]

so i have the entire valve off, and blowing through it. should i be able to get air going in in either direction? just 1 direction? the new valve i bought (wrong size btw) doesnt allow air through either side. is this what should be happening with the stock valve?

[@mikhail8853]

How do you know which hose is going to the engine and which is going to the canister?

[@susanemerson269]

2002 vapor canister Chevy blazer? Should we test evap purge valve first?

[@miguelrivera5345]

Thank you Sir

[@charlievanwindt7145]

Thanks!

[@jamoss2007]

Purfect video!

[@josemena7644]

Thank You 🙏🏼

[@RichardWilliams-lt9yv]

Thank you for the video my name is Richard I drive a XLT 2021 F150 Ford says my purge valve was out they changed it and then it took them a couple weeks then they had to put one on my gas tank because I had a light on my Dash just got it back today after 3 weeks light come back on nice trying to say it's from the LED lights I put on my truck that had no problems for 2 months any suggestions

[@smileymerino8972]

If it’s pulling when you start the engine, even after installing a new valve, what could it be? Or what am I doing wrong.

[@devgirl7208]

thanks for posting this ... can small evap leaks cause car engines to heat (not necessarily overheat) due to these exhausts not pumping fast enough? can it cause a car to "shake and rumble" upon acceleration? my guess is an exhaust pipe might cause those types of issues.

[@htimsxela]

Thanks. Quick question (I hope). So I did the test and I can feel the vacuum when the engine has warmed up. But when I reattach the hose, the thumping (open/close?) noise is still present. Does this mean that the line further up is clogged?

[@mikimiki195]

Good video thanks

[@ImpureGunner]

Can you make or do you have a video on how to test using a smoke machine. Im thinking about getting one to test

[@krakenhits1587]

I got an EVAP code and they suggested this part I changed out the part and the new one is making a that I never heard before. It doesn't seem normal so I don't know if it's supposed to do that. When I took my old one off I checked it for flow and I can't blow through it so they say it's good when it's like that so I don't even know if I'm replacing the part that is throwing the code?

[@MrJithingopal143]

My accord v6 purge valve also making that too til noise and it’s irritating too. Is there any solution to reduce the noise. Hondas technician said it totally normal

[@keovongogh4094]

What are some of the symptoms of a bad purge valve?

[@ocam988able]

Does this valve start faulting and finally quits? Does it start sticking until it goes bad? I tested mine as per your video and it does have suction. Twice though, after gassing up it won’t start like if it is flooded and eventually it will start. Thanks

[@carribean660]

Thank you for the explanation.Mine is stuck open 🙄

[@gregorygarcia6819]

I have a 2003 dodge Durango the say I have a large leak in my evap system can help me out troubleshoot it has a 5.9l engine thank you very much

[@shaileshparikh6920]

How many purge valves [solenoid] in 2003 lexus es300?

[@RandomClips27.]

Thank you my code said it was the egr valve so got a new one same problem starts and stalls again till I remove the egr valve connector and it runs fine but once I done what you done it turned out my purge valve was stuck open from a cold engine replaced it and perfect and passed emissions aswel as it failed last time

[@jeffdeluca1153]

Question... I ran my engine a good 20 minutes and the valve never pulled suction although in the hose from the manifold - there was suction. So I placed my finger over the open tube on the valve for a few seconds and in doing so it began to function as you show. Is it possible the valve is intermittent or sticking thus throwing the codes?

[@spazzologist]

Change it anyway. It’s cheap insurance

[@Dave-jc6ky]

So if vacuum during first 2-3 minutes then the purge valve is bad. Perhaps likely stuck open. Is that correct?

[@phantasm489]

So mine (Toyota Camry 2014 with the 2AR) actually has a third nub but nothing is hook up to it (part 90910-tc001) is that just an air purge or is it actually supposed to connect to another vacuum line

[@bbhoustontx]

thanks!

[@kendallt.1253]

What is the noise when you first started the vehicle? I have a 2020 Jeep wrangler 2.0 and it sounds just like this when idling, is that a normal engine noise?

[@stevesmith5604]

Thank you for making this test available. I own a 2007 Honda Odyssey with a P145c trouble code. I did the test and the valve test good. Any suggestions as to what I should check next. Thanks again.

[@deejwilson_5276]

Gas cap

[@marcusholtzheimer9316]

How loud should the clicking be? I replaced mine and it’s making a loud rhythmic click or tick after opening

[@Oscarisahoe]

I have an 07 avalanche. I got that code and it says its for that. Would that fix my starting issues? Because sometimes it takes up to 2 to 3 tries to turn on

[@davechampion3495]

Great explanation! Mine is sucking like crazy even with the electric disconnected. Stuck open so I will replace. Hopefully that will fix my p0449 on a Chevy Tahoe.

[@joshuafleming4433]

Did it clear the code? I'm about to check this to see if that's the problem. My evap vent value behind the gas tank looks good but I can't check it due to the damn clip on the hose line (won't come off)

[@davechampion3495]

I had to replace the rear vent valve too. It was easy to get to but that clip is tricky. It takes a couple small screwdrivers to pry it out.

[@joshuafleming4433]

Damn, I don't even think I have screwdrivers that small. I'll go pick some up later on. Also on the purge value under the engine cover, how did you test it? Mine has a vacuum line attached to it that won't come off and a stem that has a screwed on green cap. Which one would I use to see if it is staying open or not? Idk what year Tahoe you have but mines a 06 with the 5.3. the previous owner neglected the hell out of this truck, rear main seal was bad and my lifters have that tick

[@joaquinsandoval7156]

I don’t get it why on my car I don’t get the purge valve after the car warmed up and two different purge valves not to open. I have no codes what so ever is very frustrating.

[@tonycobb9059]

​@joshuafleming4433 6 months later here lol. The clip pushes very easy. A pair of needle nose pliers worked great for me. Trick is to push both tabs up Abita and pinch the top part with other hand then drop the pliers and the hose eascomes off

[@joeazigazi1802]

opel astra f x14xe The EVAP valve is constantly open. It receives direct current.what might be the problem?

[@Random.Adventures.]

awesome thanks

[@TimRoss-qv9td]

Also, you can just put 12v power to it using some jumper wires and you can hear it click to open and you will be able to blow through it. Without power, valve should be closed and won't be able to blow through it.

[@michaelbrock6222]

will a stuck open purge solenoid cause the Po450 code i had my Toyota T100 3.4 check engine codes that came up i had the P0450 code and the P0441 code i know my purge solenoid is stuck open it draws vaccume whenyou start engine cold

[@tripsitter271]

Ive got a loght on for it but it works correctly with this test, any idea on what the problem could be?

[@johnhead6116]

Cool. So if the valve is good, how do you find out what's making the engine light come on from code P0456?

[@clrd4takoff32]

Would my tach bounce or stop working if this was bad? My temp gauge also stopped but all my codes say EVAP Canister. 2008 Toyota Corolla

[@ventacasaciudadjardincali1321]

Is it normal that when is working , if you touch it you feel the beat of it working?

[@uptownphotography]

Good tip. Unfortunately, on my 2008 E90 (BMW) it is located underneath next to the gas tank. It's doable, but somewhat a pain unless you have a lift or ramps. This is great info for other cars however...Well done. Phil

[@BamaJoeBob]

It sounds like you’re referring to the vent valve instead of the purge valve? Just guessing

[@uptownphotography]

@@BamaJoeBob Is the vent valve the one near the gas tank on an E90 (2008 335XI)...Thanks.

[@pennyluo9123]

@@uptownphotography that's not the same valve. This purge valve should be near the intake manifold.

[@uptownphotography]

@@pennyluo9123 Thanks for this info. To be clear are you saying the Purge Valve is not the same as an EVAP Pump? My EVAP Pump is next to the gas tank (and a pain to get to), so if the Purge is a different value (and is near the intake manifold), this would be great news as that I likely can get to easily to test. Thanks for your comment. Phil

[@finessedabest9341]

That's the charcoal canister vent valve

[@1littlelee]

is this when the engine is warm or after say 5 minutes of you running the car?

[@JohnDoe-jk8yy]

My 94 f150 is revs up and down and then dies could this be the problem you think

[@rwarren4637]

My check engine light came on, and the Code Read from AutoZone said: EVAP Canister purge valve, was the culprit. What is the cost to repair this? I have a 2015 Chevy Impala. Can a Backyard mechanic fix this?