Quickest And Easiest Test For EVAP System Leak Codes P0442, P0455, P0440 On A Basic GM EVAP System
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- Опубліковано 18 жов 2024
- In this video we should you what we think is the quickest and easiest way to diagnose a basic Purge/Seal EVAP system. Time is money and this is what we think to be the most efficient way to diag a leak on a simple EVAP system.
Eric O. Sent me over. If he admires your skills I'm going to check ya out! That's a great compliment having him praise you.
It's an amazing compliment Yepper11!!! Thanks for watching. If you have any questions don't hesitate to reach out.
Mike Becker, Senior Instructor
@@GoTechTraining You guys are light years above my skill on cars! I change brakes as long as it's not the lines. And anything outside the motor I will usually tackle. But if it involves taking the engine apart I'm taking it to someone like you. I know my limitations. I can do just about anything with wood but working on cars is a different kind of "mechanically inclined". I admire the skills guys like you and Eric possess. Keep up the good work. And thank you so much for putting up these videos. There are times when I have to tackle the car due to not having the $ so I have no choice. I greatly appreciate that you have videos like these for me to be able to save myself even more grief. You get a good guy award in my book for your kindness in instructing those of us who really need the help.
Same here
Same here, well done.
Nice video but honestly that machine is way too complicated! This one is so simple here:
ua-cam.com/video/4R4Q9Y-sW-s/v-deo.html
I linked over from SMA...Eric O.....when he recommends someone, I go and check 'em out....glad I did....good explanation
on EVAP system...gives me a little more confidence to troubleshoot when the time comes....thanks for posting...
Hey Ken, welcome and thanks for watching!
Mike Becker, Senior Instructor
Here from Eric at SMA. Always appreciate a competent mechanic! Thanks for the video!
Hey Ryan, thanks a lot!
Mike Becker, Senior Instructor
I understand this is very simple but Mike's knowledge and teaching is impressive. And something to be proud of!👑
Excellent presentation! I have seen so many of these codes but not really certain how to troubleshoot without the guessing. Now I have a much better understanding.
Hey Mark,
Glad it helped you!
Thanks for reaching out and supporting the channel!
~Ryan
You certainly know how to use that scan tool to its full potential. That is a skill all its own.
Thanks for watching Michael!
Mike Becker, Senior Technical Instructor
I have only one word: brilliant! Thank you very much for sharing the expertise!
Thanks a ton Selim!!!
~Mike
Came across your video from Eric O. at SMA. I watched it about a year ago. Thought it was very thorough, and simply put. Keeping it as simple as possible is always a good thing. Watching it again now, because I have an 03 S10 4.3 with a 449 code. My first check also is always the vent solenoid. Was cycling it on/off and initially was working fine. Til eventually it started acting up, rapid cycling, and unresponsive to commands. I assumed faulty solenoid and replaced it. Initial tested showed working fine, and during the purge/seal test would pull down a vacuum to almost 5 volts and slowly deplete after going back into system seal. After a road test and monitor test, light is back on for 449. After cycling solenoid on/off several times, it fails to respond. I'm assuming the ground side circuit (pcm) is possibly not functioning correctly. After the car sits for a while, I attempted purge/seal test again. It responded and showed expected results. Went to evap vent solenoid and commanded on/off again. And it was responding normally. Any suggestions? Using Autel Maxisys Elite.
Gotta love the way you quickly did a screening test, then using the data you came to an hypothesis and then verified the diagnosis. I can think of ways to do this without bidirectional control but it would take imagination and a vacuum source.
There is always more than one way to "skin a cat" right? A few jumper wires, a vacuum source, and a meter would get you there on this car. Wouldn't even need a vacuum source if the car runs!
Mike Becker, Technical Services Instructor
To that I would add that for a DIY'er, I would try cleaning out the old valve with some carb cleaner, before making a decision to replace it. Cycle the sticking valve with some jumper wires attached to the battery with solvent sprayed into the vacuum hose inlet of the valve. Cheap and easy. Sometimes just spraying carb cleaner into the associated vacuum hose from the easier access of under the hood will do it too, if you spray enough in there and give it time to soak/loosen up. A lot of car owners are just focused on getting the car past the annual state emissions test with as little expense as possible, though obviously a professional repair would require replacing the valve.
Another DIY trick you can use in this situation on some older cars is to just fill up your tank, then disconnect your battery for a few minutes to clear the code & check engine light, then run a standard drive cycle for your specific vehicle. Keeping the tank full will get you a Not Ready for the Evap test, but in many localities, they'll let older cars slide with a single Not Ready. (Check your state emissions rules to see if such a tolerance exists where you live. In some states they'll actually let you slide with TWO Not Readys, if your car is old enough, and the check engine light isn't on. ) If the Evap problem still exists, the check engine light will come back on when the fuel tank level decreases to the point that the car can test the evap system, but at least it gets you past the inspection (if you don't live in some strict state like California).
Eric O. says that you're the 'best'....so here I am. Very instructive and precise video.
Hey Airborne63, thanks for watching! Naw, I'm not the best. Just another tech trying to share stories so we can all have good days.
Mike Becker, Senior Instructor
THANK YOU FOR SHARING YOU KNOWLEDGE, NOT TOO MANY PEOPLE TALK ABOUT THAT DEVICE
Thank you for sharing your knowledge on evap and for being more detailed. I appreciate your skill and your videos. I hope to see and learn and gain more I sight through your teaching. Excellent episode.👍👍👍
Hey Joel, thanks for watching and the kind words! Hope we can help you gain the knowledge you're looking for!
Mike Becker, Senior Instructor
Thanks very much, Mike, for the tutorial. I just ordered a bidirectional scanner. With your demo, I am ready to go this weekend.
hi c wood, what brand of scanner did you get, is it the same one mike is using? thanks
@@charleycharles6757 I bought XTOOL Anyscan A30M and it works great. $219
I'm learning so much! May God bless you all
Thank you! Glad you're learning :)
Mike Becker, Senior Technical Instructor
Very "Wells" done Mike. Us DIY'ers always ask the same question..."but what if I don't have a bi-directional scanner" ? With the GM we can still check for power, signal and grounds, and hear the "click". I like it.
Hey Wyatt, that is a great point. Do you think there is value in doing something similar without a scanner?
Mike Becker, Technical Services Instructor
In my humble opinion, yes sir. A fair number of the viewers are people like me who are beginners. We watch UA-cam to learn more in general, (like me) or we're here because our car broke and were looking for information to fix that particular problem with basic tools. DVOM, test light etc. I have realized from watching other great UA-cam channels that some systems will require a high end scanner and/or scope. Even that I can afford such items (I do have a few scanners and the basic series 2000 PICO) I can't justify more expensive equipment for the few times I'd need one. If a case presents itself where one could troubleshoot a system with some basic tools that would be great. It may not bring immediate viewing, but your library of material that included the use of basic tools I think would attract many viewers over time. Thank you for the opportunity to comment.
Hey Wyatt, save a search on your local craigslist (or one nearby) for "autel" or whatever scan tool you like. I did this about 18 months ago as I couldn't afford the $1200 or more these things cost. Then about 3-6 months went by, I had even forgotten about it, when an Autel DS708 popped up and I got an email out of the blue. Not a latest and greatest but I ended up picking it up for $225 with a near current update. I'm now making money on the side with the knowledge from these guys. There are deals out there to be had but you just need to know how to find them and then jump when one pops up.
I also just picked up a Redline Smoke Pro smoke machine with all the accessories on eBay for $450 (about half price) and put it to use the same day it showed up on UPS. Just have to watch and save searches on eBay and Craigslist.
That's awesome you found some good deals. So you can have a standing "search" on Craigslist and it will alert you?
Yes sir. You just need an account and you can hit "save search" and then go to your list of saved searches and make sure it's set to notify you. You will get occasional emails that aren't always relevant (the CL spammers sometimes get through) but it's worth it to be the first to jump on a good deal should it come around.
Fast and efficient! Always a pleasure to watch Mike in action! 👍
Hey Nick, Thanks!
Mike Becker, Technical Services Instructor
Simple test Mike. When I was working it took "a while" and one day I realized that just what you've shown us, I could do the same thing. It simplified testing. Most of what I had were vacuum lines, pressure sensors and occasionally a purge valve. We dealt with heat, occasional smog, and accidents. Fleets in L.A. are like that. Great Video!
Hey Mike, thanks for watching! :)
Mike Becker, Senior Technical Instructor
Eric O sent me also,you are a true technician thanks
Hey Tim, thanks!!!
Mike Becker, Senior Instructor
This is the diff btw an ASE Cert Mechanic and a hack. Bravo man.
Thanks for watching Douglas!
~Mike
Eric O. said to come and check out your channel, now I can see why! Great job👌
Hey Brett, thank you very much! Welcome!
Mike Becker, Senior Instructor
I like to pull up fuel trims too to monitor the purge valve opening.. It's interesting see the rich condition from the vapors, then a huge lean condition, vacuum leak. If you have a bad tank pressure sensor you can verify very quickly
Hey GJ auto, fuel trims are great to watch as well. Fuel trims move, but FTP stays put....you are pretty set on that FTP. Newer cars actually do that. They use trims to verify the purge is actually opening!
Mike Becker, Technical Services Instructor
Wells Vehicle Electronics So that helps rule out a stuck closed purge valve?
Exactly John, the PCM will expect to see a deviation in the fuel trims when it cycles the purge open. Not rich or lean, just a change. The rich/lean factor would depend the contents the canister.
Mike Becker, Technical Services Instructor
Well done Mike. Happy New Years! I'm in Florida for a week and a half right now. Sunny and warm. I think this place is a mechanics dream. No rust!!! Total extreme form Ontario.
Hey Mike! Enjoy your time in Florida! I've heard that. Enjoying some rest and relaxation I hope?
Mike Becker, Technical Services Instructor
Very informative videos! I am just wondering if you can make videos about testing bad oxygen sensor, bad mass airflow sensor and bad throttle body. Thank
Well that hose been off before at the vent valve could see the markings from the clamp lol. This is how I like to do them very well done Mike
Hey Mike, Yeh they have, I filmed that part twice. Prior to that though, they had not been off! :)
Mike Becker, Technical Services Instructor
Wells Vehicle Electronics Yeah I figured that was the case that or someone else was messing with it.
Awesome! Just what I needed for the pesky check engine light on my 2003 Chevy Cavalier. Thanks so much!
Glad the video was able to help JJ!
Mike Becker, Senior Technical Instructor
the results of the purge/seal test, specifically the rate of vacuum decay, on a known good system, was exactly what i was looking for. i would assume that would apply to other GM EONV evap systems as well, like the 05 suburban 5.3L that im working on? great video and content as usual from you guys
Mike thanks for taking the time to share your knowledge. Very informative video Artie 👍👍👍
Hey Artie, thanks for watching and commenting! :)
Mike Becker, Senior Instructor
GoTech Mike I’ve watched you on Wells but am sought of new to all of this technology and am looking forward to your channel especially schematic reading and of course everything else. I think I mentioned I’m a retired aircraft mechanic and I do have basic electrical knowledge but not very much. Been taking webinars, I continue watch joe,Keith and others been purchasing equipment messing around with Arduiano and just want to learn what I can. I appreciate any direction you can point me in. I’ve subscribed to Mitchel Diyer electrical for my own vehicles which I maintain myself. Thank you for sharing your knowledge I greatly appreciate it. You can friend me on Facebook and my Email is ajfricchione@optonline.net. Thanks Mike 👍👍👍
Retired and still learning, that's what I like to hear! :)
Mike Becker, Senior Instructor
Mike I will not stop learning. I truly enjoy autos from the sixties to now. My sixty eight mustang was a jewel but I want to learn today’s systems to maintain my own vehicles. Up here on LINY good tech are hard to find that said I enjoy learning and repairing everything I own. I will be following you. It’s my life. 👍👍👍
Nice little quick video with lots of good info. Thanks
Hey Mike, thanks!!
~Mike
Hi Mike thanks for that quick diag. what brand and type of scanner are you using? thanks
Hey Charley,
The scan tool used in this video is a Snap-On Verus.
Same as Yepper 11 said; if Eric O. recommends, I am checking you out
Well thanks, I really appreciate it John!
Mike Becker, Senior Instructor
You are a master at your trade
Hey John, thank you very much!
Mike Becker, Senior Instructor
Another great video. Thank you for the clear and very informative information.
Outstanding video - thank you!
Thank you so much!
~Mike
Glad i found your channel. Thank you for your time and effort on these videos.
Hey, thanks for watching!!!
Mike Becker, Senior Technical Instructor
GREAT VIDEO i learned a faster way then i had been doing it, but I would fix that rusty brake line way before i worried about an evap code
Great video, how do you test if we don't have a higher end scanner tool? Do you know any lower end scanner tools that would allow you to turn on and off the vent? I would like to be able to do what you're doing by turning off the vent to trouble shoot. I'm pulling my hair out with my 2015 chevy silverado. We changed out the solenoid valve and the error code i'm getting points to the fuel pressure sensor you mentioned, fingers crossed that it's it but if not i don't know what else to do. Thanks for the content.
Thanks for watching! Check out something from Launch or Autel, they may be able to do what you need at a lower price.
Mike Becker, Senior Technical Instructor
Man, what a nice simple system. I think my first gen Mazdas are quite similar. Thanks!
Hey John, if only they were all the simple.....haha!
Mike Becker, Technical Services Instructor
Good and straight to the point. Great job Mike
Thanks for watching Ant C.
Mike Becker, Senior Technical Services Instructor
Wells Vehicle Electronics I Subscribed after watching this and checked out other videos that are great quick references if needed at anytime. (I'm a GM tech and ASE Cert'd also)
Hey man, thanks! Glad we can help :)
Mike Becker, Senior Technical Services Instructor
Thank you for taking the time to post your video!
Thanks for watching Robert!
Mike Becker, Technical Services Instructor
Hi Mike, thank you for the helpful information. What scan / diagnostics tool are you using? Do you have a recommendation on a scan tool for a home mechanic / DIY-er? I have a simple code reader - but am seeing the value in a more sophisticated tool - yet don't want to spend a ton of money on one either.
Thank you,
-Jason
Hey Jason, In this video I was using a the Snap On Verus. It really depends on your budget. You can get into a Launch or Autel tool for a good price. The Autel Maxisys tools are good. Launch also has some lower end "full function" tools. Expect to pay over 1000$ for something decent though.
Mike Becker, Senior Technical Instructor
Thank you for the information Mike! I appreciate it. -Jason
You are awesome, exellent knowledge and skills
Thank you!!!
Mike Becker, Senior Technical Instructor
I don't have a scanner that turns my vent solenoid on and off. Turning my ingition key on and off would I hear the solenoid clicking? Or do I have to use a jumper?
Hey Jim, the vent solenoid is usually fed power whenever the key is turned on. When commanded by the PCM it will ground and close. If they vent is clicking just turning on the key, check for a short to ground on the ground wire. If you want to force it closed for a leak test you can use a jumper wire.
Eric O. sent me over. Very well done. Subscribed
Sweet, thanks David! Welcome!
Mike Becker, Senior Instructor
Hi Mike, great explanation of the Evap system diagnosis. I have a code P0446 [Evaporative Emission System Vent Control Circuit] on my 2002 Toyota Camry 3.0 Liter Engine. Since I do not have the sophisticated test equipment like you do, is there a way to know more about what that code means? I checked the purge valve power and it is working and clicking when applied.
Hey Jim, that's a tough one. Old Toyota EVAP can be very hard to diagnose. You're dealing with a vent solenoid code, which is part of the canister if I remember right on those cars. Take a look at my EVAP playlist on here. There's a video covering Toyota EVAP that i'm sure you can pick a few pointers up from.
Mike Becker, Senior Instructor
@@GoTechTraining Thanks for your prompt reply. I will check out the video.
Hi Mike! Eric sent me over. Good video! I have a P0442 in a 2008 Hyundai Santa Fe with the 3.3 V6. Replaces the vent solenoid and purge valve. No issue. Then I recall the CEL came on when I replaced the fuel level sensor. Can that trigger an evap leak?
Hey Oche Oche, the fuel level sensor may have been faulty causing the EVAP test to never run.
Mike Becker, Senior Instructor
GoTech oh wow. Okay. Never thought the used unit could cause that. Guess I’m better off with a new unit
i've a 2013 odyssey, with P0430. It had a check fuel cap msg for long time that didn't go away when i changed the cap. Could it be a evap issue, where engine is running rich and thats why catalyc converter is under performing? I checked with OBD, no other MIL, only thing noticed is that fuel trim is high negative, like -6/-7 for both short & long. Also Evap system vapor pressure is continuously changing from 16 to -60, to -120 pa..... any opinion on this? thanks.
very educative. Thank you
Glad it was helpful!
Nice video! Came here due to Eric O’s suggestion.
Awesome! thanks for watching!
Mike Becker, Senior Instructor
Nice quicky Mike! Thx for all the great videos in 2017. 👍👍
Hey Dylan thanks for watching and commenting in 2017! Great stuff to come in 2018!
Mike Becker, Technical Services Instructor
Do I understand rightly that the tankpressure is a reflection of the pressuresensor voltage, and that the tanksolenoid and purge both are valves of which the latter is scalable (in steps of 10%)?
Thanks and greetings from the Netherlands!
Hey M. Torn, correct the PCM/scan tool translate the pressure sensor voltage to give us a parameter in pressure. The vent solenoid on the tank is typically on/off only where the purge is typically scaled in whatever percentage the PCM is calling for. That clear it up!? :)
Mike Becker, Senior Instructor
@@GoTechTraining Thanks, very glad that I got it!
You are AWESOME ! GREAT VIDEO ! Thanks for your time and effort !
Thanks so much John!!!
Mike Becker, Senior Instructor
Hi Mike do you think this issue can cause the nuzzle stop frequently when I try to fill it up the gasoline tank event if it is half way full? by any chance there's another way to test the charcol canister or the selenoide ? since I don't have a scanner like yours, thank you
Eric O. From South Main Auto. Sent me over to check you out.
Sweeeet! Welcome!
Mike Becker, Senior Instructor
I have a 06 impreza that has had all valves on the tank replaced along with the charcoal canister, I'm still getting a p0457 code. No leaks, purge solenoid replaced and canister vent replaced. What would you suggest I do next???
Very nice explanation Mike and very well presented! Should help a lot of techs out there...Oh, and I wish you and your family a prosperous and healthy NEW YEAR!
Hey Terry, thanks! I hope so. Quick and easy check to weed a lot of things out. Happy New Year to you and yours as well!
Mike Becker, Technical Services Instructor
Eric O said to come here and watch your videos. Hello!
Hello there Matthew, welcome! :)
Mike Becker, Senior Instructor
What would you recommend to check next after changing out the purge valve, vent Solenoid and the gas cap is still receiving the code p0455 on a ‘14 Chevy impala limited
Hey Lafayette Huston, i would change your approach. You've already spent quite a bit on parts and haven't fixed it. I think it may be time to have a tech look at it. They can perform a smoke/leak test on the system and actually diagnose and repair the source of the leak instead of guessing.
Mike Becker, Senior Technical Instructor
@@GoTechTraining ok thanks!
If purge is shut and stuck close and vent is open, all while driving, will vapor be suck through vent solenoid to the point it builds up fuel in the vent solenoid? What are other possibility that fuel is found in the vent solenoid?
Hey Padrote Lopez, if you have fuel in the vent solenoid I'd be guessing at an overfilled gas tank...that's really the only reason. You could maybe have a plugged hose somewhere forcing pressure from the tank to the vent, but overfilling the tank is way more likely.
Mike Becker, Senior Technical Services
Only if they were all that easy. Lol Great job Mike. Thumbs Up Brofessor.!! I was surprised to see a video up so soon after Christmas.. SWEET :} Thanks
Cheers
If only! That's what's nice about being able to que up videos :)
Mike Becker, Technical Services Instructor
Is the vent selenoid same as the purge selenoid valve?
No, they are not. The vent is near the fuel tank and is normally open. The purge is under the hood and normally closed.
Mike Becker, Senior Technical Instructor
if my actuators click when opening door/starting car will this prevent some types of computers from diagnosing?
Excellent help! I used this to help me focus on the 3 parameters for small evap leak (no cel but repeat gas cap message) on 2010 Express 6.0
I know it's different vehicle but the PID data doesn't vary that much and I was able to see 4 PID relationships when purge commanded.
Thank you!
Hey NV, that's great use of the video. The systems are pretty much identical. Glad it helped!
Mike Becker, Senior Instructor
Mike, what is the red colored object you are holding in your left hand (you stuck into the connector) when you are testing the vent solenoid with a test light in your right hand?
What scan tool are you using?
Thanks!
Great video demonstration. Thank you
I have a 98 civic Ex with an intermittent small evap code P1456. A shop ran a smoke machine and found no leaks. They suspected and replaced both the bypass and two-way valves but no change.
Only clue I have is, on warmer days like hot summer days, everything works and no codes. Once outside temps drop below 70 degrees the code always returns. Any suggestions what to look for?
Mrsemifixit, the temp may be related to the test running or not running. At this point it's time to have a shop do a smoke test and actually diagnose it. Something is either leaking, or the feedback is not functioning. If you've already taken it to a shop and had it diagnosed and repaired, but it's still not fixed..sounds to me like they missed something and they should cover it and make it right for you.
Mike Becker, Technical Services Instructor
Wells Vehicle Electronics Thanks for your reply. In the hotter days the test does run and passes is what I meant to say. I’ll check with an OBD2 scanner and it’ll say evap system passed and ready. But in colder days it throws a code. I did at the time go back to the shop and they ran another smoke test but didn’t see any leaks so it’s confusing
How did the test light show power and ground at the same time???
Having a hell of a time diagnosing po446 code something's wrong with the EVAP circuit change the solenoid change the purge valve still got the code turning on the check engine light something's wrong with the circuit I think some assistance would be appreciated
Yeah...real easy if you have sophisticated test equipment like that!
Mike tool did you use in 6:45 besides test light the red thing in your left hand
Thanks Mike! good explanation.
Thank you thank you!
Mike Becker, Technical Services Instructor
Good explanation ,
hi what was the load you put on the connector when you tested with test light?
Hey John, not sure I understand your question. The test light was the load. An incandescent test light will generally pull about 1/4 amp.
Mike Becker, Senior Instructor
@NGK Technical Training Mike, EVERYTIME I perform the EVAP Purge/Seal test (using Tech 2) on my 2004 Trailblazer EXT LT 4.2L 6 cyl. my car STALLS immediately when I HIT THE SEAL BUTTON, and all vacuum in tank(I usually pull vac between -7 to -10 inH20, that's at 60% command on the Purge) goes immediately back to 0.00 inH20 and the FTP sensor voltage goes down from 3-4 volts back to atmospheric 1.5v. If I have car running and just seal the system, NO Pressure builds up like in your vid. I can hear vent clicking in the back when commanded, and purge is working because I can feel the engine react when I start purging more and more. EVAP Diag seems to clearly be my nemesis! Any thoughts, suggestions, remedies, tips, ANYTHING? Thanks in advance
Try plugging the vent hose after the vent solenoid. Just because the solenoid is clicking doesn't mean it's actually closing!
Mike Becker, Senior Technical Instructor
@@GoTechTraining Will do. Can't pinch off, due to ALL these EVAP hoses are all those pre-bent hard plastic hoses. Got to find something to plug into end without disturbing the inside o-ring or breaking tabs. Do you think it would upset system if I were to just replace vent hose to canister with a normal rubber hose like the oldn' days? Thanks for reply in advance Mike.
What do you mean by drive cycle? Is it just driving the car around town or following 15-20 steps of ob2 test drive cycle test?
Hey Padrote, when I said drive cycle, I had mean the OBD2 test drive cycle. I just shortened it up :)
Mike Becker, Senior Technical Instructor
6.4.2019
Long Beach,CA.
You can purchase a "Drive Cycle" CD by going through www.motors.com
Then you'll have to purchase it from one of their Field employees.
How did you connect your scan tool ? i know you must connect to the OBD11 but is that all you connected the scan tool to or did you also connect it to ground?
Hey, thanks for watching. The scanner is connected to the OBDII port. That port has both power and ground connected to it.
Mike Becker, Senior Technical Instructor
NGK Technical Training Thank you , and really good video , very well explained
Hey, Mike. When you use the bi directional control, does that mean you bypass the pcm? So, if the pcm would not run the test because of a short to voltage or to ground, you woud be able to do it bi directionally.
Hi Littlebear Gaming, great question. When us use bi-directional control the scan tool is telling the PCM to perform a function. It is not bypassing the PCM. The scan tool is only submitting a request to the PCM. If the PCM is unable to, then the bidirectional control would fail.
Mike Becker, Senior Technical Services Instructor
Thank you so much for the answer, Mike. You are great!
Thanks for watching and commenting! If you ever have any more questions don't hesitate to ask!
Mike Becker, Senior Technical Services Instructor
Good job Mike. Thank you. Happy New Year to you and your family.
Hey Billy, thanks! Happy New Year to you and yours as well!
Mike Becker, Technical Services Instructor
When i check the purge solenoid with a mityvac ,I hold pressure on the vaccum side but not on the other side of solenoid, is that a normal condition . Im not able to vaccum more the 5 on the side that goes to the tank only on the vaccum i can hold as mich as i put on it . Should it hold vaccumm on both sides when i test with mityvac?
Hey, yes it should hold vacuum either way. Chances are the way you are holding vacuum is just holding the seal tight against it's sealing surface.
Mike Becker, Senior Technical Services Instructor
What type of bi-directional scanner was used in this video?
Eric O sent me. Beautiful work. Just subbed.
Awesome Omar, thanks and welcome!
Mike Becker, Senior Instructor
What a great person. Thank you.
Thanks for posting this.
Thanks for watching Richard!
Mike Becker, Senior Instructor
Mr Becker r u still here, i want to ask u a guestion about my 2015 toyoto corolla. evap system, leak detection pump. there r 7 wires going to and from it. with the key on on there r 2 wires, 1 has 12 volts and the other one has .5 volts. they r beside each other. the other 5 wires no volts. when i take the pump out of the canister on the bench and check it, the same 2 wires that had volts, in ohms they r 27.7. If i take a 9 volt battery and touch those 2 male pins, it clicks just a little but it doesnt close all the way. I think it is stuck open. Thats what i`m asking u. I`snt that the way u check it, and what do u think. And the reason for all this is DTC po 455 code. And dont have a machine like u to auto turn off the pump, all i have is a cheap scanner. Thanks u. And u have some great videos.
I had a 442 leak code. Found possible loose gas cap. Went through at least 14 drive cycles of 12 miles or more and the evap mil still has not completed.
How much would a evap scan test like this cost?
Hey Cal Lee, that depends on the shop. I'd figure an hour of labor for an EVAP test.
Mike Becker, Senior Instructor
Most logical diagnosis
Thanks for watching!
Mike Becker, Senior Technical Instructor
Sent from Eric O. Great find.
Thanks Kieran!
Mike Becker, Senior Instructor
Great explanation, thank you so much
Thanks Brian!
Mike Becker, Senior Instructor
Sent here by Eric O of SMA to check out your channel.
Awesome, thanks!
Mike Becker, Senior Instructor
great video. learning so much from you guy's
Excellent Shaun! If you have any questions, don't hesitate to ask.
Mike Becker, Technical Services Instructor
Wells Vehicle Electronics. hi Mike, am studying automotive engineering at college. looking for information about engine management systems, electric steering and suspension and electronic braking and stability controls. do you have any videos on these subjects?
I'd say your best bet is to just browse through all of our videos and see if there is something that interests you.
Mike Becker, Technical Services Instructor
Nice video Mike! Merry Christmas and Happy New Year!!
Hey Bob, thanks! Merry Christmas and Happy New Year!
Mike Becker, Technical Services Instructor
Question why a car stall put at stop 🛑 only when its cold when reach normal operation temperature everything is fine car has a clean tb new map tps etc sensor new iac valve ?
Hey Fredy, and codes? Have you had it scanned? Start there.
Mike Becker, Technical Services Instructor
Wells Vehicle Electronics i got po170 malfunction bank 1 noticed a negative fuel trim but notice the base idle it should be 730 rmp - + 50 load when i turn the ac or the heater the rpm increases a little bit then goes back where it was before i think my idle base its set to low and make the car stall but weird only does in the morning or whatever the engine is cold after is warm works great 👍 sometimes i hear the engine like is flooded when come to stop hit the brakes the rpm drops to low and stall out and sometimes the rpm stay the same and hear the engine like wants to die it sounds like this broom broom sorry haha can’t say by words but it makes a weird noise I increased the base idle just a little bit it seems to help a bit but it’s annoying coming to stop and have to press the brake and the gas pedal at the same time for preventing to stall i cleaning the egr valve before and i don’t know if was working i notice the pin was like way inside the valve don’t know if it was stuck
Can that particular scanner help detect the source of a 0172 and 0175 codes?
Sure, the scanner can pull codes and data, from there you have to do your own testing!
Mike Becker, Senior Technical Services Instructor
vent valve on gm rare problem thanks for the evap follow up
Hey Juan, right!? Especially up here in the rust belt!
Mike Becker, Technical Services Instructor
no different in south florida i thought it was the heat
Really, could be! Many of ours end up with rust in the solenoid. To the point where the body of the solenoid actually rusts enough to crack its plastic that is holding it in! Rust can build up a ton of force.
Mike Becker, Technical Services Instructor
Damn...didn't know Jim Carrey was a mechanic as well😮😀👍
Haaha thanks...I think.
Mike Becker, Senior Technical Instructor
😂😂😂
Got a question...stumbled across your video after I bought a 98' Mustang GT...it runs pretty damn good, but it has a check engine light. I put a code reader on it and it said System lean bank 1. It has a fairly strong emission smell with no fuel leaks that I can see. Checked some vacuum lines on the purge valve and are pretty deteriorated. Also a 2 1/2" rubber hose on the PCV valve is deteriorated. Haven't checked the O2 sensors yet. The car has aftermarket x-pipe exhaust with only 2 O2 sensors instead of 4. Is there any advice you could give me?...would greatly appreciate it👍
Great video Mike
excellent video. thank you for sharing.
Hey David, thanks for watching!
Mike Becker, Senior Technical Instructor
Eric O. sent me. Hoping to find a clue for my '06 Chrysler Town and Country 3.8 small eval leak
Hey PastBlast, I have a video specifically on Chrylser EVAP. Here's a link...ua-cam.com/video/k4MJ8zy3r_M/v-deo.html
Mike Becker, Senior Instructor
Which scanner are you using?
Hey Derrick, I was using a Launch scanner in this video.
Mike Becker, Senior Instructor
@@GoTechTraining Thank you. BTW. I have an issue with a 2001 Ford E250. It will not pass Evap test. I'm down to the last two reader codes $2A and $2B. Tank pressure initial Failed. All other readiness are green. Any ideas would be appreciated.