Quick Easy Test For Stuck Open Evap Purge Valve

In this video I show a quick and easy way to test to see if an evaporative emissions purge valve is stuck open due to an internal mechanical fault. (The evaporative emissions purge valve is also known as a vapor management valve.)
Step 1: Disconnect the vapor tube going to the valve at the valve. The particular tube that is needed to be disconnected will be the one coming from the evap canister to the purge valve. Typically the evap canister is located near the fuel cell. So this tube will typically run to the rear of the vehicle.
Step 2: Start the engine and allow it to idle. This is important so that vacuum can be applied to the valve. !!! WARNING: BE SURE THE VEHICLE IS IN PARK AND THE PARKING BRAKE IS ON. KEEP THE VEHICLE IN PARK WITH THE PARKING BRAKE APPLIED!!!
Step 3: Disconnect the valve's electrical connector. It is important to do this because the PCM may cause the valve to come on allowing vacuum to pass 0through the valve giving inaccurate test results. It is normal to have the PCM command the valve on. Also, if there is an electrical fault it could cause the valve to stay on allowing vacuum to pass through the valve causing inaccurate test results. A mechanically sound valve should not allow vacuum to pass through it when the valve is not commanded on by the PCM. Disconnecting the valve electrically helps with getting accurate test results by isolating the valve.
Step 4: Place a wet finger over the opening of evap purge valve nipple. No vacuum should be felt. If so, then the valve is stuck open and is faulty. (Do note: in the case of a very small leak, special leak detection equipment may be needed. It's been my experience however, that 99% of the time if the valve is stuck open a leak can be detected in the manner shown in the video.)
Definition of "Normally closed solenoid/valve": A solenoid that is closed when no electrical current is supplied to the valve.
Caution: Keep all ignition sources away from work area. Fuel vapor may be present in tube and valve. Fuel is very flammable. Even with all sources of ignition removed from the area fuel vapor can still ignite via other means. Use extreme caution. Keep a fire extinguisher handy. Work in a well ventilated area. Do test at your own risk!
Caution: Use extreme caution when performing this test. Beware of moving parts that could potentially injure you. Keep your members clear of moving parts. Keep loose garments and jewelry away from moving parts.
Caution: Be sure the vehicle is in park and that the parking brake is applied before performing this test!!
For tool reviews and product recommendations by Barbour's Auto Help visit my store front on Amazon by clicking the link: www.amazon.com...
Disclosure: As an Amazon affiliate I make a commission on qualifying sales.
DISCLAIMER
Barbour's Auto Help is not responsible for any damage or personal injury incurred in the process of performing any auto repairs done by you the viewer. Automotive repair is extremely dangerous. Repair your vehicle at your own risk. It is the viewers responsibility to verify all information and procedures as outlined in YOUR REPAIR MANUAL AND OWNERS MANUAL FOR YOUR VEHICLE. Owning and using a repair manual suited for your vehicle is essential for correctly and safely performing ANY repair to your vehicle. Always wear safety glasses and heed all instructions for use applicable to any piece of equipment you may use. Due to circumstances out of the control of Barbours Auto Help, Barbours Auto Help makes no guarantee that by the use of the information given in this video a quality repair will be made. Barbour'sAutoHelp makes no guarantee that the information provided is totally complete, syncronized and accurate. Verify everything using an appropriate repair manual.
USE THE INFORMATION FOUND IN THIS VIDEO AT YOUR OWN RISK! YOU CAN GET HURT. BE CAREFULL.
Barbour's Auto Help is owned and operated by Silver Hat Productions, LLC.

[@than217]

I love how the connections in this video come right off. I'm trying to remove them right now and it's like concrete.

[@BarboursAutoHelp]

Yea, after over 20 years in the industry I've never once had to struggle with anything.....ever... lol.

[@Cathida]

WD-40 help?😂 G🍀L if your still have troubles.

[@live86coal]

Lol

[@skud9999]

@@BarboursAutoHelp I'm an appliance repair technician. Same here. Lol

[@blakeuhl8731]

Not over-thought. Short, sweet, efficient, excellent tech tip!

[@BarboursAutoHelp]

Glad you liked it!

[@gklcinc]

2013 Toyota Tundra. Did this test and it worked! Simple fix as well. Thank you very much my friend.

[@darylkik777]

After watching subpar videos it was a relief to find yours. I do not know how you find the time to answer so many peoples questions listed below. But because of your good faith and help I have subscribed and will watch more videos. Thank you.

[@BarboursAutoHelp]

That's great. Thank you for subscribing! I appreciate it.

[@johnjohnson-qe3gt]

Everytime i fill my gas up and leave the gas station my rpms fludder down if i come to a redlight. It goes away after a few miles though. No check engine light on. Could this be the purge valve? And do i need to change valve and canister?

[@dko8546]

Thanks for the video. I did this test today and don't have a stuck solenoid. Now, on to the next possible issue.

[@davewilson7422]

This is an easy, straightforward way to do a quick test. And a ding of a lot less than a Ford dealer will "hose" (pun intended) me for. If it IS stuck open, is there a danger in essential driving until the new one arrives? (2 days) I heard somewhere that it could fill the canister with gas. And that begs the question, if I don't want vacuum to the canister, can I drive with the hose plugged until the new valve comes? Thanx much for this. Hopefully it saves a trip to a high priced shop.

[@michael-lynn]

Thank you! I really appreciate the help. Your diagnosis worked and was very simple. I had a brand new purge valve installed that I suspected was faulty. I replaced it with another purge valve and it corrected the problem. Was getting a p0456 code and the smell of fuel vapor that I couldn't locate.

[@BarboursAutoHelp]

Super cool!

[@wrenchguy3942]

Much appreciate the help brother! After watching I troubleshooted the problem and replaced the valve

[@BarboursAutoHelp]

Good job!

[@samuraikenshinn]

I test mine same way, disconnect the hose of the gas tank and place a finger in the valve, if you feel vacuum is a fault valve, the valve make a rough idle, shut off when running, hard to start. THANKS

[@chgofdsteve]

Great video! right to the point, with good camera work! 10/10!

[@BarboursAutoHelp]

Much appreciated!

[@StrangerinaStrangeLand-im4yl]

My canister purge valve seems to be stuck partially open when unplugged as well, plus the engine idle would bog down some every 10-15 seconds. It eventually caused my fuel tank to implode/shrink while going down the road.

[@FDbroadcasting]

Do you need to reset the fuel trims in the ecu after replacing the faulty valve?

[@williammason7092]

I always enjoy watching your videos I have done a Ford Edge water pump after watching you do one

[@BarboursAutoHelp]

That's awesome. Great job!

[@lynnt3964]

Excellent vid boss! Short and straight to the point❤

[@lh98]

How about testing the valve by putting voltage to the valve? Listen for the click

[@darrenbrown7669]

No videos on crown Victoria evap vent canister please doone

[@cecilwright4017]

I have a question. Can it stop a vehicle from starting? Or have u heard of that before. I have one that finally failed....and my vehicle won’t start. Changed everything, plugs, fuses and sensors then I remember I never got to changing my purge valve that was bad several yrs ago.

[@michaelcolagiovanni9195]

Anyone know if it's possible for the purge valve to be noisy, yet still operate normally? The car runs perfectly fine and there are no codes, but the purge solenoid makes a lot of noise and I haven't seen this issue before

[@freelandaudits3737]

Thanks for the video.. I didn't even think about removing the connector and checking the valve.. sure enough, constant very powerful suction..

[@STRATTONSGARAGE]

Excellent video you speak very clear and precise and you know as well as I do how important that is. Great job

[@forexcontratosfuturos9290]

it causes code P2198 in my ford edge. I did this test, and YES!! there is a vaccum with the eletric cable disconnected. the valve is stuck open! thanks, I will buy a new one

[@BarboursAutoHelp]

Thanks for sharing

[@murphytoadster9864]

My 4.9 bronco runs like crap and wants to die unless I bypass the solenoid and run tube open straight from charcoal canister to intake.

[@dannybrazil3986]

I have a 2005 ford ranger my purge valve has a 3rd port that's capped off with a green threaded cap it's on the opposite side of the other 2 ports , I want to say it's a service port? Would that port be where I would test the valve for having vacuum or no vacuum.

[@lizog5008]

Will a bad purge valve get a 02 sensor code as well ?

[@adelinolumbongo2526]

Good day My 2009 Ford Expedition with a 5.4 L engine is misfiring rough idle put a scan tool to it gave me a code P0453. Changed the sensor on top of the fuel tank no leaks in the EVap system. Still doing the same

[@Convoycrazy]

Appreciate the video buddy. I have the old style OBD1 with the vacuum operated purge.. was tryin to figure out if it was normally closed / normally open. I guess the design theory is when you apply throttle and the manifold vacuum drops, the purge valve opens.. anyways thanks a lot

[@felixchavez9950]

I have a 2009 Buick Lucerne they got a code for the EVAP vent solenoid I changed it out and the light still stayed on

[@nicktaylor4807]

Wish I would have seen this a year ago. Thanks so much for sharing

[@jasonnasiry]

i keep getting P0456 on mitsubishi 02 galant went away and back after 3 new gas cap and the oem model but still pops up any suggestions?

[@strahinjicban4682]

Hello, can i just turn it off electricaly (plug out) for a test drive, i mean is it safe for car, will not cause some damage??

[@streetDAOC]

Is it possible to have a faulty purge valve and the truck not throwing any codes? 2018 ford f150 xlt 5.0 Truck doesn’t turn over after stopping to get gas after long (cross country) drives. (Only starts if truck is left to sit for 20-30 minutes) Good starter, good alternator, good battery, no leaky injectors, fuel pump fuse is good.

[@BarboursAutoHelp]

So when you say that the vehicle doesn't turn over, to me that means that it's not cranking. Is this what you are saying? The engine is not cranking? That would be what we call a "no crank/ no start" scenario. Now if the vehicle cranks but doesn't start then that is a "crank/ no start" scenario. A stuck open purge valve will not cause a "no crank/ no start" scenario but could possibly cause a "crank/ no start" scenario. But, it's hard to believe that the purge valve could be causing this and not setting a check engine light to come on. That would be one heck of a leak to cause that symptom.

[@jrfindsjr.originalsfm8814]

I have a 2004 f150 XL heritage my question is, can you blow in through the canister purge side when it’s disconnected because I know it’s supposed to be open when it’s connected when I put a vacuum to the intake, engine side on the purge solenoid it holes vacuum, but when I blow in through the other side from the canister purge site when it’s disconnected air goes through and comes out the intake engine side of the purge solenoid ?

[@blankman8021]

So if it's not pulling a vacuum after it warms up, does that mean it's stuck closed?

[@206elprimo]

What causes purge valve solenoid to have gasoline inside on a 2006 f150 4.6L please help

[@willhall7777]

If a person is broke is there any way to fix the purge valve at all? Anyone tried it or done it?

[@tftcride]

Thank you for this video. Is Evap Purge Valve the same as Canister Purge Valve/Solenoid?

[@BarboursAutoHelp]

Yes, it is

[@tftcride]

Thanks @@BarboursAutoHelp

[@Rtb323]

Would a Evap purge canister cause the smell of gas ?

[@peterzinia3767]

Yup!

[@sniperpaintcorrection]

Thank you I have a 07 galant and getting p0441 code it wasn’t the gas tank cap tho

[@felix2916]

I just did the procedure in an 08 explorer 4.6 v8 and it sucked my finger a bit. Not sure if I'm this vehicles the valve should be normally closed or open

[@muddinbros4873]

So while its running pull the electrical connector off and the vacuum line testing if it's got pressure which is bad

[@amandabell5756]

Where is the purge valve located on a Ford mustang 1997

[@JQUiK84]

Question I cleaned mine out the car is running way faster is that what it do?

[@dereksellsmi]

Hello, my Grand Cherokee’s purge valve is making a tapping or ticking noise. Is that normal and indicative of it functioning properly?

[@matthewkester9387]

I followed the steps and there was no suction, i plugged the electrical back in while engine was running, and it began sucking air, not sure if that was the right way, but either way i suppose i need to replace it now

[@BarboursAutoHelp]

It will suck when it is connected if the PCM commands it to come on. That's why you test for suction with it disconnected. It should have no suction with the electrical connector disconnected.

[@63paulc]

Thank you for the info sir I was able to diagnose my girlfriends car ,you were a big help

[@zhangtiger9651]

Solenoid Purge Valve stuck close how i check it pelase

[@Pccpy]

Can you clean it instead of buying new one?

[@walterquinones7991]

Do you do the same to the leak detector pump too ???

[@BarboursAutoHelp]

Are you referring to the expensive leak detector pump that shops use to diagnose evap leaks?

[@walterquinones7991]

@@BarboursAutoHelp i was trying to show a picture but i can't i was talking under the car i have a 04 chrysler pacifica

[@bazanemilio09]

Is this part the same as a egr vacuum solenoid?

[@BarboursAutoHelp]

It may work similarly but the egr vacuum solenoid and the evap purge valve are not the same part.

[@MoisesZamora-w7k]

Hello, Do you know why my engine is not sucking in air? It turns on and runs just fine. I am not getting no air sucked in even when I removed the purge valve. I tested the purge valve by applying voltage and it opens and closes. Thats when I realized that engine is not sucking in air regardless.

[@BarboursAutoHelp]

What vehicle are you working on and are you sure you checked the right part?

[@pangelmontalvo16]

that's a good video ty.can the purge valve get stuck in the closed position?

[@BarboursAutoHelp]

Absolutely

[@JoyfulJapaneseMaples-us7on]

So you don't even have to turn the engine on? It will just permanently have a vacuum if it's broken??

[@BarboursAutoHelp]

There is text over the video at the time stating that the engine has to be running when checking for vacuum.

[@carlorocky]

I’m working on a mystery and collecting clues. I have a 1996 Nissan Quest, 140k miles, strong smell of gas in the cabin. I also have a terrible low speed hesitation, it bogs down and noses over when accelerating from a stop. I recently replaced spark plugs, fuel filter, air filter and cleaned the MAF sensor. It got a little better but it’s still pretty bad especially with the a/c on. Any ideas would be greatly appreciated. Thank you

[@wilnoreugene1582]

I have a 2014 escape eco boost and I’m smelling evaporated gas through the vents . Could that be the same thing ?

[@jeanjeanty9128]

Good diagnostic tip right to the point. Thanks

[@macegarage9603]

good thing , aside from testing the wiring for current flow or voltage, another way to quickly find if it is a stuck open purge valve, Ow yeah , just don't forget to reset or clear that code if so ever it throws any. Thanks man for this, gonna see more of your videos sooner, peace!

[@deloisrichardson6054]

Hi, I have a jaguar xtype 2005,i have code 442,but can not find it??

[@mkate3959]

2007 Toyota Sequoia check engine light lit up and the other lights as well. Gas cap has been changed, gas cap always is tightened correctly. Now I am told that the Purge Valve is making the check engine light up, nothing to do with the gas cap. The Purge Valve will cost $350-$500 to replace next time the check engine lights up. ~ Fort Smith Arkansas

[@bowesman1000]

my wifes 08 G35 had a P0455 code. i reset code and hasn't come back on yet. can this effect her gas mileage. car used to get 20 mpg, now its gettin 16 over a period of last two years. i am going to replace valve i bought already but hasn't done it yet. p.s all normal maintenance been done including plugs at 96k car has 102k on it. any suggestions?

[@BarboursAutoHelp]

It's hard to say. There are a lot of factors that can affect fuel economy. I suppose it may be possible but I'm not really sure if that is causing an issue like that.

[@AlecDaStar]

What about a clicking noise from the cap connected to purge valve when I start my car?

[@longohome]

That is the valve opening and closing. They are closed with no current. Open with current.

[@phillipcalderon9877]

Hey, thanks for your video, I have a 2007 Jeep Grand Cherokee 3.7L V6 4x4, I've gotten both P0455 (large leak) & P0456 (small leak), I will try your test today, but when both codes present, could the purge valve still be the issue?

[@BarboursAutoHelp]

Yes, a faulty purge valve can cause a large and small leak.

[@phillipcalderon9877]

@@BarboursAutoHelp yeah you were right! That fixes it! Thank you!

[@ccas6771]

2001 Audi TT code P0422. Could this be my issue?

[@st-gelaiskevin9202]

So simple... Sharing your knowledge with us is really, really nice and I thank you Sir.

[@BarboursAutoHelp]

Your welcome.

[@douglasbrunt2675]

I have no codes! No engine light! But have a strong gas odor in cabin Of 05 Honda Odyssey. Help!

[@BarboursAutoHelp]

Gas cap?

[@allenleavell2847]

Could this cause possible lean codes? On my 2015 Chevy Impala I have a check engine light on for lean codes and I hear an air leak in the back of the intake somewhere. It sounds like it's coming from the purge valve but I'm not completely sure

[@BarboursAutoHelp]

Typically these cause rich codes when the fail like this.

[@bizkit2147]

I've changed this purge valve 3 times already now I have to change it again,,what's really going on...2007 Yukon denali

[@BarboursAutoHelp]

Why do you keep replacing it?

[@bizkit2147]

@@BarboursAutoHelp check engine light comes on, I take it to Auto Zone. Get it checked and it's the Purge valve again

[@BarboursAutoHelp]

@@bizkit2147 What code exactly are you getting? What tests have you done?

[@jessejameshurtadoiii9916]

Can this cause a p0430?? Or even a fuel filter that's old or clogged???

[@michaeldysart2271]

Question. My 04 mustang gt been sputtering when I give it alot of gas. And when you fill up with gas it kicks pump off and you can hear air. So I went to check the purge valve first and the vacuum line to the intake from the purge valve is collapsed. Took it off and it was still sucking but not alot. Put it back on and checked the one to the tank and didn't feel no vacuum from it. Kept it off and it still sputters when hard excellerating. Could it just be the collapsed hose? It still sucks but prob not enough

[@BarboursAutoHelp]

Maybe you have a misfire. Are you setting any codes?

[@michaeldysart2271]

Only code I'm getting is fuel rail sensor but I've replaced it 3 times with 3 different new ones.

[@BarboursAutoHelp]

@@michaeldysart2271 Shoot...I'm not sure.

[@andrewjohnson3587]

would a stuck open purge valve cause an o2 sensor rich to lean code come up

[@BarboursAutoHelp]

It sure could..

[@drewgsands]

My LTFT is 3.9% STFT is -0 to -12 appox. and runs perfect. When it runs bad the stft is postive 5-12. (Runs like is is starving for fuel) 2003 slk 230 mostly runs bad. Fuel pressure pressure is 55psi and stays that way even under load. This is the Mercedes code when I get one pictured. It might be a purge valve now it is running perfect. Checked fuel Pressure 55psi all the time. Cleaned some grounds cleaned Throttle body. Checked the 2 valves that are only 2 wire they are clicking. Swaped oem MAF sensor with oem Maf sensor no change. Smoke test done. Can a purge valve cause this. When it runs bad this is the code p2024-1 B28 Mercedes code.

[@BarboursAutoHelp]

Not a Mercedes expert but I wouldn't think a stuck open purge valve would cause the fuel trims to go positive like that.

[@truckerfromnl]

Can it alsow make the engine shake ? I got misfire codes.

[@BarboursAutoHelp]

Yes, a stuck open valve could cause misfire codes.

[@adrianburns548]

Great video! Thanks!

[@bbmd2200]

Great tip as always!

[@BarboursAutoHelp]

Happy to help!

[@deere3321]

Mine was sending lean codes to both banks. I tried this method and felt nothing. I put a vacuum gauge on it and the needle was moving. It was undetectable with my finger. I replaced the purge valve and the problem went away.

[@BarboursAutoHelp]

It's highly unlikely that a purge valve that is stuck open will cause a lean code. Think about it... What is it sucking on?... Gas vapor. More gas vapor = richer. What kind of vehicle do you have?

[@lorrainefoster1268]

Where can i find the purge valve on a mercedes benz 190E 2.3?

[@BarboursAutoHelp]

I really don't know. Maybe another viewer can answer that.

[@patrickrobinson317]

Very Helpful - Thanks Bro !!!

[@BarboursAutoHelp]

Glad it helped

[@shortgeorge8272]

Thanks, helping the simple made clear

[@BarboursAutoHelp]

Glad it helped!

[@shadow13888]

I have a 98 dodge dakota the pcv valve ticks and was bought new why is that?

[@BarboursAutoHelp]

Maybe a bad part... not sure. When does it click and under what conditions?

[@captainamerica6521]

what do ytou mean!!???????????????????? do you try to start car when feeling for sucktion??

[@BarboursAutoHelp]

Either start the vehicle and then go and feel for suction or have someone start it for you when feeling for suction. Easy peasy. *Be sure the vehicle is in park and that the parking brake is applied. Keep the vehicle in park with the parking brake applied while checking valve.*

[@rexluongo6470]

My evap purge valve on my 06 F250 5.4, closed when initially started. Opened after a minute and then closed for a few seconds while running. Is this indicative of a failing valve or does it open and close while running?

[@BarboursAutoHelp]

Did it do that with the electrical connector connected?

[@rexluongo6470]

It did shut off with the connector plugged in and the truck running at an idle. It shut of completely when I turned the truck off and tried to blow air through the valve. It was closed. When I disconnected the power it closed everytime. I don’t know if it’s related but I have two issues I am trying to resolve. First the tank will not fill with gas except a tiny bit at a time. Second there is a P0171 lean bank 1 code. I plan to swap the o2 sensors to see if the code switches to the other bank. The fuel I think my be the ball valve at the tank. Just my best guess at this point but I wanted to check all the parts. Also looking at the charcoal canister and valve.

[@BarboursAutoHelp]

@@rexluongo6470 I'd suspect a possible "bad" evap vent valve or a restriction causing the refueling issue. A stuck open purge valve will not cause the issue with filling the gas tank. Also, if the purge valve is opening and closing with the vehicle running and the valve plugged in electrically then I'd say it's doing what it's meant to do. It's supposed to do that as the PCM commands it on and off. When is the last time the MAF sensor was cleaned?

[@luiginumbaone]

Hey I recently changed my purge valve on my 09 toyota camry and I want to find out how to close it.

[@stevewilliams4777]

I know they are in 2 different locations but are the purge valve and vent control valve the same part?

[@BarboursAutoHelp]

no

[@dark666leo]

Excelente video me sirvió de mucho ya había checado todas las conexiones y no daba con la falla asta que realice la prueba que dijo y listo solucionado lo hice en una gmc canyon 2009

[@michaelmcfeely6588]

Is the vent valve a normally open type?

[@BarboursAutoHelp]

An evap vent valve is a "normally open" valve on the majority of vehicles out there equipped with an evaperative emissions system.

[@captainamerica6521]

i think you meant to tell people to try to start while feeling holes for suction

[@BarboursAutoHelp]

Obviously, you cant be in both places at once. Start the vehicle and then walk over to the valve and feel for suction. Easy peasy.. *Be sure the vehicle is in park and that the parking brake is applied. Keep the vehicle in park and keep the parking brake applied while checking valve.*

[@quanganh4768]

The great video. Thanks alot and Best regard

[@ZteveW]

My purge valve stops working like every few months or so. Why?

[@BarboursAutoHelp]

It probably has to do with the color of the car. Red and black cars usually have this problem....lol Heck I don't know. What kind of car is it and how exactly is the valve not working? Why do you think the valve is bad?

[@ZteveW]

@@BarboursAutoHelp It's a 97 Ram 1500. I keep getting the error code that tells me it's bad and when i remove my gas cap, I no longer hear that vacuum sound I normally hear.

[@BarboursAutoHelp]

@@ZteveW What code exactly are you getting?

[@ZteveW]

@@BarboursAutoHelp P0443

[@BarboursAutoHelp]

@@ZteveW Ok, so P0443 sets when the PCM detects a faulty with the valve or the circuit. Now the circuit goes through the valve and into the PCM. Now if I'm not mistaken the possible points of failure are, the valve, the circuit, connectors in the circuit or a PCM. So, you'll need to do further testing to determine what exactly is the problem.

[@SwayNotZay]

I did this test and it my purge valve was sucking in air when I put my finger on it, I changed it and it still continues to suck air. Is there something else that would cause this?

[@BarboursAutoHelp]

Did you disconnect the electrical connector before checking it?

[@kevinmcgehee5557]

Very good explanation!

[@BarboursAutoHelp]

Appreciate it, Kevin! Thank you.

[@openEfingerstyleguitar]

You didn't mention - I'm guessing the engine must be running? Sorry, I've not worked on a car in about 40 years.

[@BarboursAutoHelp]

I have it notated in text on the video.

[@izikush]

Have a question for you ?? Can I email you ?

[@BarboursAutoHelp]

We can talk just as well here. What you got?

[@vincentgranville964]

Struggling with mine but. I have 2 hoses... 1. Runs from the top of a small purge valve to the back of the car, I assume cannister or tank. 2. The hose coming out of the bottom of the purge valve goes to the fuel rail. The difficulty I have is the fuel rail has no other hoses that can be attached so it looks like fuel delivery also runs through the valve. Is this actually a purge valve or some kind of vacuum solenoid? It does have an electrical connector (2-pin)

[@BarboursAutoHelp]

That doesn't sound like a purge valve to me. Purge valves don't feed fuel rails. What vehicle are you working on?

[@vincentgranville964]

@@BarboursAutoHelp it's a Renault Modus 1.4L Gasoline 2006 (European Car) It doesn't actually have an Evap system, it vents through a tube next to the gas cap. It looks like a purge valve and is consistent in design but my next thought is a pressure regulator or fuel flow but according to my service book the pressure regulator and filter are all integrated in to the fuel pump contained in the gas tank. Either way fuel flows directly through it to the rail and it is electronically controlled. My understanding of purge valves is they nearly always vent the vapours from the cannister back in to the intake by means of a hose (separate from fuel delivery) Thanks for replying.

[@nathanrhoden4694]

Awesome job mate

[@richardmoreno1338]

Thank you Barbours Auto

[@BarboursAutoHelp]

You're welcome!

[@jasonmorris9138]

I just tried it I can't feel any air going in or coming out

[@josephblurton3793]

So if I don’t feel vacuum then it’s good?

[@BarboursAutoHelp]

Didn't say that. If you don't feel vacuum it means that it's not mechanically stuck open.

[@christopherhampton8364]

This might be the issue I’ve been hunting on my civic for 3 months🤞🏻

[@georgematthew1]

Thanks for the video

[@BarboursAutoHelp]

You bet

[@timbosolo1629]

Hello the was a good video , I recently fix my cooling deposit because it was leaking and now that i put it back in it still gets a almost to the red hot but now it makes this noise like it wants to turn off and the acceleration goes up and down what can it be

[@BarboursAutoHelp]

Don't know. Have you considered having a tech look at it?