This is a great tip for those of us that doesn't have smoke or "Virus". Thanks Eric, and those guys at Wells are the real deal, an invaluable online resource to get trained in vehicle systems.
What an excellent link to Wells, I had forgotten how good those guys are. For those of us without a high end scanner, we have bigger challenges. I sure like the old school method with a vacuum gauge, most of us have one of those, ha ha. Presumably toggling the solenoid without bidirectional control is just a matter of figuring out how much voltage it needs and applying power and ground to the solenoid directly. Thanks!
Hey Spelunkerd, thanks man! You are exactly right, most of our vent and purge solenoids operate on 12v power. They are also normally ground side controlled by the PCM. That being said, they are typically powered up at all times when the key is on/engine running. So, running a simple ground wire on the PCM control side should actuate the solenoid 100%. ~Mike
Thanks you man.I'm happy there's people like you and Mike Becker from Wells electronics that share their knowledge in such small details...FOR FREE!! THANKS!
Excellent walk through and tips. With my luck, the new one would have also failed the vacuum test. I'm glad you demonstrate the need to verify repairs.
Great video that applies to many vehicles. Basically, it shows that you can use the engine's vacuum to test the EVAP purge solenoid. Do not even need a scan tool, just a vacuum gauge and the ability to activate the solenoid with a powerprobe or battery. Nice. Thumbs up! - Robert.
Good stuff as always Eric! Thanks for the shoutout :) **making a mental note** kibbles and bits in the canister...and here I thought they were little chocolate sprinkles. ~Mike
Bro, this is the exact video with code I was looking for. 2004 Toyota Corolla LE, 138,000. 06/2021: I changed the EVAP Purge Valve because it stalled out whenever pumped gas and I was at a stop or red light and took my foot of the break. Changing it solved the problem. 10/2021: I had a small leak code P0456 and it was in one of the rubber hose where the EVAP Purge Valve is connected thathad an air leak coming out. Now issue came back. I changed the rubber hose. Correct me if I am wrong, but that rubber hose leak that connected to the EVAP Purge Valve caused my EVAP Purge Valve to go bad and leaving it in either the OPEN/CLOSED position. Fortunately, my new one is coming in today and I’ll be changing it.
Just had one of these come in the shop yesterday. Customer is coming back in tomorrow to leave car with me. I was leaning towards the filler without having spent any time with it (just did a quick scan). I will be running this test tomorrow. As always, thanks for the tips, you once again have saved me some time...
Yes sir that is correct. If there are no evap leaks found when smoking the system using the smoke machine but there is a stored evap code in the computer, this usually indicates one of the components/solenoids are sticking intermittently causing this code. Nice work.
Fantastic diag, Eric! I would have been on there with a smoke machine for hours to no avail lol... But now I do remember this fellow named Keith telling me repeatedly that for ANY EVAP CODE, CHECK THE PURGE! Maybe that guy knows a thing or two haha
Eric thanks for the practical lesson and the experience you put into Mike's videos. Mike from Wells has been on the topic of evap systems for a few months now. I also seen on one occasion, you gave Mike some adivce to why his demo wasn't working, well done. The TST videos are also a good source of information, but they are extremely long.
Why do we not have a regular vacuum gauge with a bleed trigger like a fuel pressure gauge ? Hmmmm . Great video as always brother . Told ya , purge for me here 7 out of 10 times has failed even if there is a smoke leak elsewhere
2 AM someone who taught me many years ago said that a vacuum pump gauge is for the pump , and a vacuum gauge should be used to check vacuum. The accuracy is always greater. Don't know if he was right but the guy never led me wrong , not once ever
I guess a person could test that out easily with both a pump gauge and vacuum gauge hooked up to a tee coming off the same source of vacuum. Maybe a hand pump uses a check valve in it that would not show decreasing vacuum, such as a sudden vacuum leak.
Great Vid Eric! I am getting a small leak code on the PT cruiser. It also has NVLD system. I was watching some of those wells videos on it, and they are top notch. Looks like the PT purge solenoid runs on 12 volts so I can disconnect it and cycle it with some jumpers (Probably with a test light in line just in case) since I don't have a bi-directional scan tool.
Actually Joe's my uncle, but thanks for posting. :D Great tip! I'd have NEVER figured this one out - would've been super aggravating for me! I need to watch that Wells vid. EVAP is my weakest automotive point. All I know how to do with it is disable it. :D
I just replace that little valve on my 2014 Taurus. Exactly the same valve. Took it off and blow air with my mouth, was stuck open when is supposed to be normally close. That fixed my code p0456
wish you lived closer to Pine Valley ,ny because i have a small P0456 system leak and was told it was going to cost me $500 to get it fixed. i have a 2012 ford fusion sel and on a fixed income .
I have been waiting for a new video, and I would love to see a new video on your other channel, I really like the campfire experiments. God bless you and your family.
Eric I've noticed that the only time that replacement parts being made out of the country are only brought to our attention when they are on General Motors vehicles I noticed that that part for the Ford was made in Mexico 🇲🇽
Thanks for another awesome video. After watching your videos I have become a better technician and instructor. I salute you Eric O. Thanks again and keep up the great work.
Thanks Eric. Because of you, I understand the EVAP system on my car very well. One thing that is NOT clear to me is WHEN does the car go through the purge cycle? Every start? Every so many miles? Every so much time? Every time I add gas to my car? And if adding gas is the trigger, what about when the gas gauge doesn't work (as mine does not right now)? Thanks.
I don't know the official answer but I can tell you that I see my 08 Honda at 20-30% duty cycle on the purge valve most of the time after it's warmed up. It seems to purge most all the time.
I have a 2010 Ford Edge that keeps coming back to my shop (just a company we hold their maintainence contract for) with a p0422 small evap leak. It does not have a capless system and is not flex fuel. it has been to the dealer numerous times and they always says its the gas cap, but they have never replaced it, and the customer can not tell me if they smoked the system. I replaced the Gas cap as per the customer, since the dealer didn't do it. have pretty much disassembled everything inspecting it, I don't have a smoke machine and neither does the shop, I told the customer that. I removed the purge solenoid and tested it as per a vid I saw from "realfixesrealfast" but it didn't do anything. I watch a vid from 'fordtechmakulco' and he said the change the design of the purge solenoid in 2010 to the type Eric just showed, and he showed the old style which was actually the style that is on the one I keep getting. Any ideas? And I'm confused why I'm getting a different code for a small evap leak.
I never realized how many evap leaks you repair. I know you mentioned before that since you live in the rust belt that it causes a lot of these problems. But this video is great because it highlights the purge solenoid as the problem verses the traditional find the leak with the smoke machine. Lol. These purge solenoids seem to be junk. Always seem to be going bad? Or is it just me?
Uncle Bob! Eric said Bob's my uncle, so....great to see you, Uncle Bob! Eric must have started watching the Dave Jones on EEVBlog! Dave loves the "Bob's your uncle" line. Cousin Mike, your EVAP videos are definitely top notch. Keep up the great work all of you. I have learned a lot from all of you guys.
Good job I see this a lot on these I would say at least 8 out of 10 times that is the issue. What's with all the nasty comments lately on people's channels like people complaining about watching.
Be careful. Sometimes when you replace a part and that was not the problem it takes a long time for the code to come back especially when its a small leak at the fuel pump , until it's worse. That is actually the most common cause 2007-2009 Sonatas. When my mechanic replaced mine he insisted on using OEM because he had too many comebacks on aftermarkets with altered design.
I hace a mitsubishi lancer 2004 ES 2.0 engine... ANd i have this engine light come on i put my obd and said P0456.... first i bought a gas cap thought i solve the problem it went away after almost a week of driving the light came on again. I check my OBD its the same error. Thank you for this video its very helpful. I will try to change my purge valve solenoid/ Hoping this is the same problem im having it too.
Thank you Eric and Vanessa (and Hanna), you all have became my favorite subscription, and I always look forward to your next "if I can do it..." video. THUMBS UP!
Eric I have seen you with multiple scanners. I use the Maxisys Pro so that is my preference. I have seen you use the Maxisys on occasion but as of late it is not your go to scanner. Is there a reason and do you have a preference.
Thank you for the video. I just got 2011 Ford Escape out of shop, purge valve replaced, smoke test done, no leak found. On my way to ER, due to exposure, fumes coming into truck agsin. Help, what is my mechanic missing???
Back in the 80's GM had a 3C carbureted 307 Oldsmobile engine that was used across divisions, and it had a vacuum operated purge valve that I would say 1 in 3-4 cars that came in the shop would have a bad one, to the point that when you saw one regardless of the reason for the car being there, you'd check that purge valve with a vacuum pump cuzz it was 3-5 tenths of an hour warranty and super easy to do. This was the valve and we'd check at the top vacuum port. www.rockauto.com/en/catalog/oldsmobile,1985,cutlass+supreme,5.0l+307cid+v8,1222827,emission,vapor+canister+purge+valve,4936
Good to see that you are feeling better.... just a quick question how can a 3.0L move such a car at anything other than half a sail's pace... :p Great work as always Mr. O.. Bod bless....
AnhYeuEmMaiMai69 3.0's are actually pretty strong. I had one in a first generation Taurus and it would roast the tires. won a lot of money racing Cavaliers.
We replaced the Purge valve on my 2014 ford flex , hoping this would eliminate the check engine light. How long does it take for the vehicle to register there is no longer an issue on its own?
This is a great tip wish I know this when I owned an MB 1994 had saved me time, Mb had this purge valve and they got I think stuck open because carbon build up and the symptom was erratic idle. Is this possible on this system to get the idle problem.
I just got this P0456 code today when I left library. Says its a very small leak...I didn't see in your description link for part you showed having changed as being culprit. Can I get name of that part and approx cost for one. Im a check my gas cap....then check that item you talked about in video here....
I have a 2010 fusion but same engine, with only 27000 miles I have had four of these things replaced, and had to have the gas tank replaced because it was crushed like a empty beer can.
once again, public/consumers got pooched over by wide-scale public beta testing, least they had a recall.. if it was like chrysler/jeep/mopatsr, it took them nearly 2 years to supply a HITCH for jeep recall on gastanks being smashed when hit in the rear-end... jeep liberty-turd, their hopes was that the jeeps got wrecked, broke down, totaled or scraped before hand.. no bail out's? they need pushed out
Cherokees were involved in that one too, got a recall notice via my parents, whom I'd bought it from, but AFTER I'd gotten rid of it. Mine was a '99 Grand Cherokee Loredo recalled in I think 2015 or 2016 but got rid of mine in 2014.
I have a video on how to turn an old EVAP solenoid into a multi use crackpipe. It also supports meth usage. lol Enjoyed the vid Eric and I agree that Wells has some kickass vids on EVAP stuff
How do you feel about pushing CO2 and sniffing out evap and y1234 a/c leaks? I want to try it just not sure how practical. Was watching one of those motor age training videos lol.
Every time I call Ford looking for this part ,the parts guys always says " I HAVE DOZENS OF THEM IN STOCK"that says it all. I keep purging Ford of their purge valves..thanks scanner O.
I have a question about my Ford Fiesta's charcoal evap canister. Near the air hose on it is a plastic lever that can be switched 90 degrees in locked and unlocked positions. I messed around with this canister last night due to a P0456 error and I can't remember what it was set on by default. Should it be locked or unlocked? Thanks my man!
I got taken for $400 by a garage that changed my gas cap twice. I replaced the solenoids, etc myself, flex sealed the hoses just in case...i know if i replace the charcoal canister or gas tank neck, itll be the last thing i spend money on thats the real problem.. with everything else replaced for nothing. This has cost me already 2 years tax return money and its still not fixed. Can it be bypassed? I erased the codes with an OBD but the inspector could tell and i failed...its an 08 accent
FMC have replaced 3 of these purge valve solenoids. I started dumping Lucas fuel cleaner in it and so far no codes. Only cleaner that works on the Eco Boost engines.
Hi Eric I work mostly on European cars and I'm familiar with the system on all European car I think they all run a leak détection pump anyway I was checking my cousin's 2008 Chrysler town and county van with the older V6 engine not the pentastar engine it had the same fault I check the purge valve with a vacuum pump an it seems ok the tank cap was replaced with a new Oem I checked the filler neck were the cap goes and there was a very small amount of rust I cleaned it I also look at the check valve with the weight in them it's on the end of the charcoal canister I don't know how to test that part ? So the Ford system and the Chrysler system are similar so the purge valve could be intermittent the purge valve on the van is on the passenger side in the engine compartment ?
Good morning Eric-O. I have the ridgeline 07. I am having an acceleration problem. All runs well but if I'm doing 50 60 mph and give a little gas i get a little hesitation. Where do you feel i should start? I did run some STP Ultra fuel cleaner with no change. Thanks for all your great videos big guy.
I have a 2005 Ford sport Trac 4.0 with same issue. My car has a vent valve and purge valve. I wonder how I would test the purge valve but this type up?
Eric, I was checking my purge valve when I noticed it was covered in a charcoal sediment, far dirtier than the old valve you pulled out of this Ford. You mentioned there were bigger problems if there was charcoal on the valve, what would those problems be?
So was that part, PURGE VALVE the culprit ? I ask this because when I pit my reader on and everything showed green color. NOTHING ON COMPTER SHOWED RED IN COLOR. Only red light I am seeing is from the OBDII TOOL THAT HAS GREEN YELLOW RED LIGHT INDICATING READY OR NOT IF GREEN MEANS EVERYTHING IS OKAY.
I just recently had to change the purge valve because of the code? This happened to be yesterday 4/20/19 now I see the Sam code it hasn't changed? Any tips? I did check the new purge valve to see if it was working I just changed it I thought the check engine would erase?
