In this video I have a look at a customers Chevy Impala that came in with the CEL on and a P0449 and a P0455. These are both really common codes to see on this vintage GM. A couple of quick checks and we know what the issue is!
-Enjoy!
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--Eric & Vanessa O.
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South Main Auto Repair
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Disclaimer:
Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained.
-Enjoy!
If an SMA Video has helped you out please consider giving using "Patreon" to help support us. The videos take real time to create and pull us away from real work that pays our bills. CLICK HERE: https://www.patreon.com/southmainauto
CHECK OUT OUR "SMA SWAG" STORE! Go on Teespring and get your very own SMA merch!
https://teespring.com/stores/the-sma-store
If you don't like Patreon feel free to use the "PayPal Me" link: https://www.paypal.me/SouthMainAuto
The South Main Auto Amazon Store:
https://www.amazon.com/shop/southmainautorepairavoca
AES Wave Automotive Diagnostic Tools: https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=2525b91fc8e906e8215984074c9d9e8f&go=https://www.aeswave.com/Miscellaneous-p9347.html
Thank you for all the continuing support!
--Eric & Vanessa O.
Feel like sending some swag to SMA because you love the videos but don't know where to send it?
Just ship it here:
South Main Auto Repair
47 S. Main St
PO Box 471
Avoca, NY 14809
Disclaimer:
Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained.
All right folks Working on a 2011 Chevrolet with no hood prop apparently so we'll use our own. Lady states that money light is on. we're going to throw a battery main container on it. We got the altel hooked up.
We'll see what we have in it for a code or codes see. got her all Ided on the Alel here. We'll go and see what code it has is. was the engine light out when you drove it in? McCoy yeah was okay.
uh we'll just say has dual zone I don't know and we're just going to go right to the ECM All right Yep. EVAP System large leak detected all right invent Control Cite So it's a couple classic GM codes uh 4 449 for open circuit or a circuit problem in the canister vent valve and then if the canister vent valve doesn't work, you know it's stuck open. Uh, the system will interpret it as a a large leak. so pretty classic stuff.
Um, we've probably done videos on these before. We'll just keep going cuz we didn't know what we were going to have until until we knew what we were going to have, right? So we just want to look at a couple things here. I Want to see fuel tank pressure on see that 1 and 1/2 volts and it is. Um, all right.
that's all I Wanted to look at here so let's go back. We'll go into active test uh you can go ah aad and start get it up on the lift there McCoy Um, we're going to go to the uh uh canister vent valve or the vent solenoids. they have it listed here I Don't hear it kicking on back there so but we can see the short ground test. It shows it fault and the open test.
it shows it fault so likely just a bad uh vent valve there. So okay, let's get up in here and check it. They're pretty easy to get to on these cars. So right back here by the left rear tire.
this is the filler neck and then the canister V valve lives up here. Usually they're pretty Rusty uh underneath the plastic? Uh well. it's kind of difficult to see here, but let me take and unplug it. Actually, we let the car down a little bit.
make a little easier to reach here Infamous Red lock in there I Can move my light up in there, get our fingers behind it. All right? So there's our connector. Sometimes these connectors are green and corroded. this case, it isn't same.
Jam Full of holes or anything. Uh, so typically uh, one of these wires usually the pink or the red with white is a full-time power from a fuse. So we're going to lightly front probe this connector and if we stick this up body ground. Yep, there we go.
So we've got power back here. Okay, And then the computer ground side switches the solenoid so we'll lightly front probe that one. now. come over the scan tool, we'll turn the valve on.
Yep, it lights up the light and we turn it off. We can go on and off with it. so that's it. I Mean that's a pretty simple simple test.
Um, the canister vent valve was simply open circuited. So uh, we need a new cancer vent valve. The control from the PCM is good cuz we can light a quarter amp test light and that's pretty much all there is to do. Uh, you could always take and stick an OM meter. If you don't have bir directional controls, you can make make sure that you have power back here and then stick your own meter across the coil of the solenoid. and I imagine it's probably like you know, 30 to 50 ohms somewhere in there. This one I imagine would be much higher than that, be open circuited. So what we'll do is, we'll get it out of there.
It's hooked to this Rusty bracket up here. We'll take this Bol out, hopefully take the whole bracket down where we can get to it. We'll follow that hose up and see where that unhooks off from the tank. It's interesting.
It looks like it has grease on it. Oh yeah, it's actually oh, that actually came unhooked. pretty easy. It's likely been replaced before.
Yeah, there's some kind of Grease or something on here. So these are a super, uh, common failure prone item here. especially in the Rust Belt Like I say, usually corrosion is what gets them rust out under the plastic. Yank that baby out of there there.
whoops. We just slid it off the bracket instead of taking the whole bracket down. Yeah, just seeing if the solenoid here was swollen. Nope.
Doesn't really look that old to be honest with you. So just for the sake of uh, the video. I Guess we can do a quick Mm check on this. Stick that on ohage.
we'll check leads. they're good. We'll just compare it to the new one. but I Imagine this is open circuited or very high resistance.
Get on these pins here. Come on there. we go there. it settle out.
so it is Point 800 Mega Ohms So we're Way Beyond the limits of what we should be like I Said I Would expect it to be you know, maybe around 50 ohms or so. but we're up in the mega Ohm scale so it is open circuited so that's that. Nap has come through for us yet again. So there's that.
open it up. there's that extra parts. Oh comes with a new bracket I was hoping it did. other bracket's pretty Rusty And then it comes with this jumper harness here.
Um, some of the older GMS use this style connector and then you would just plug this into the vehicle to go to this style. but uh, this car is already equipped with uh, that connector there. So now we can see what the resistance value of a good solenoid is. Maybe you guys could see that there? I'll just read it to you.
20 ohms. So 19.3 So 20 Ohms. All right. So if you're checking yours, you want to know what a good uh value is.
It's 20 Ohms. Uh. me and McCoy are going to get this swapped out. We just yanked it off the bracket because this bolt wasn't looking too healthy.
So we'll see if that bolt feels like it wants to turn. If it does, we'll swap the new backing on. If it doesn't, we'll use. the old rusty bracket bolt actually came loose.
We had to use a a Twist socket on it, but it came loose pretty easily. actually. All right. So we'll get a new 6 mm bolt to stick in there. So there's our old bracket that the old in with the new. Make sure that looks like she got line up. She does. Sweet.
All right. we'll go get a new bolt for it. I've just gone ahead and put it on the bracket before we stick it up here. which is we can take and plug it in, have it on the bracket, and then technically got the scan tool here.
sorry about the bad lighting. Let's see now. we should be able to hear it click. All right.
So that's good. Slide The whole thing up there. We got our new 6 mm bolt. takes the infamous 10 mm socket.
stick that bad boy on there, grab our torque wrench torque at the factory specs. Of course there we are. We all heard it click. hook the hose up.
So one potential issue uh, after doing a vent valve and having a large leak coat is now it has the ability to run the leak test on the tank, check for small leaks, and and uh so on. What we our habit usually is to do is we'll close the vent valve. and technically it should start building pressure in the tank. So it's just like leaving a gas can out in the sun.
You know as it heats up, it's going to feel feels volatile. it's going to start building pressure. Uh, even though this kind of cold in the shop and uh, the car itself is is pretty cold and the fuel Tank's cold. but you can see we're still building a slight amount of pressure and then so if we let it sit here for a while it it'll continue to build but build really slow.
so this is a good indicator. This tells us that we likely don't have, you know, a leak in the EVAP system. It's not a foolproof method. Um, but it works pretty good.
So now we'll turn it off and it should go back to atmospheric pressure. Yep, and you see it vent back out. So uh, so that's a good sign. Um I'm going to let the lady take it and just uh run, you know, drive, cycle on.
and if it comes back with a you know with a leak code then we'll we'll Chase it Chase it down from there. But um, the way that this builds pressure, uh, that quickly just through um, you just natural uh expansion I would say we're we're more than likely good. All right folks, that's it. So large evap, leak, canister, vent, valve circuit code on your Chevy Impala Um, sorry for the repeats.
Uh, cuz like I said. I'm sure that we've done this before. um, but it's just part of life. That's how the shop works.
We never know what we're getting in. Um, and if you're wondering who McCoy is. so he's an intern here from a local high school. Uh, they have a program for uh, kids who are likely going to have you know, a blue collar job or a job in trades and they're going out and experiencing uh, different different types of trades for each quarter of school.
Um, but they're also pursuing, uh, higher academics to at school. So therefore, they're not going to like our local trade program that they have at the school. Say that makes sense. But anyhow, so he might be in a few videos here and there and uh, that's it. questions, comments, concerns the ins. the Facebook you guys know what to do and just remember viewers. If I can do it, you can do it. Thanks for watching! Hey.
Thank you Mr O
Thanks as always, Eric! Those young folks couldn't have a better teacher!
Hi Eric! Happy to see you supporting your local trade school! I love your videos simply because 1) your electronic/electric diagnostics are the best and 2) the cars you work on are in the same shape those I work on, (I’m a pencil pusher by day, but a week-end wrench monkey and the go-to guy for my family crusted mobile heap of metal) being in the Montreal region – probably an even worst rust belt than you!
I have aquick question re. the model of theAutel scanner you are using. I remember you either did a video Or put the link on the model in previous video, but could not find it. Yours is probably out of my price point for a DYI guy, but it will be a good benchmark to compare with sub $1,000 bi-directional scan tools available on the market today, at least on the feature side… Considering that my Jeep is going on 5 years (low mileage, though – about 50k miles) and my wife’s 2018 Outlander going on 100,000 miles and the fact that we have not found any great independent mechanic in our area, being at least able to pinpoint a problem would be a great asset against some places’ part cannons. I currently use a Bluedriver OBDII reader, and it does a fairly good job, but not being bi-directional limits how deep I can pinpoint issues…
Wow, what an opportunity for the young fellow! I wonder if he realizes he is learning from the best? Ego is what happens when you stop learning, the best teachers are still learning. Much of the knowledge I still have was passed down to me and I was fortunate that i didn't have to learn all of those mistakes myself, well, except for the ego part.
Good guy is Mr.O
Thanks for the evap can chase, got a Chevy Express with similar to do. Which Autel are you using?
Your intern will get way better training & experience in your shop than he would with any instructor in the classroom.
Make sure he learns the most important part, your sense of humor and your vocabulary
How many miles on it
My 2010 impala has the California emissions sticker and is covered up to 120,000 or more the dealer said and it was free!!!!😊
I can't believe you didn't tell me the displacement 😂
Eric you remind me of my Dad, he was a plumber and he as took on young men who wanted to be in a good trade.. thank you for all you do…
Repeats are not a problem. Honestly, I enjoy watching your application of logic in finding the problems. Yes, the diagnosis on this one is sort of "cut to the chase" but that is often a big part of day to day mechanic work. Keep it up, no complains from me.
Comment for the algorythm.
That intern is one lucky guy! Happy New Year!
It might work out to your favor Eric, get one trained to your way of doing things then you can get on to doing more important things like hunting and fishing.
I admit… I'm a little surprised you didn't hose down that bracket with Fluid Film. 😛
Even though it was an easy diag, I still love the video. And the fact that you help young people experience how a professional automotive technician does the job is terrific. Although I was going to be a dentist, I discovered my true love was automobiles. Best career decision I ever made that led me to a 30 year career with Ford Motor Company.
Boy lucky kid to have his intern with eric. One thing for sure he will gain huge troubleshooting skills and professional traits that make or break a business.
One question why do engineers put electronic parts where the tire throws all the road trash at it and get job getting an apprentice he will learn a trade that is recession proof I have been in the trade for 45 years and never had a bad day
I say always learn from the best this intern will learn a wealth of knowledge from you great content as always Dr O
Repeating or not I always learn. I’m watching closely on how to work my new dia tools
Happy it see kids learning something they can actually make money with
Thanks for a common fix for a common problem,
McCoy won the lottery being able to intern at SMA!
Id like get get some students interested in water and wastewater treatment. Job security for sure.
It’s reading the vapor pressure from the evaporating gas in the tank.
Quick and easy, despite the rust 🙂
That intern has no idea how fortunate he is to have you as his mentor.
👍 I'm sure the youngman/intern will get invaluable experience. Carry On.
It doesn't bother me at all to watch repeats, that is one of the things that helps one to remember this stuff. That's cool that SMA engages in the learning field exercises with the local schools. Just when I thought you couldn't get any cooler old timer … LOL
Eric, based on the past couple of months and the WOKE presidents of higher education, anyone that is interested in getting their hands dirty will never be without a job.
I've had maybe a dozen interns over the years. Within the first couple of days, you'll know if they're a keeper or should be pursuing another career path.
I like repeat jobs, maybe it's the ocd.😅
SMA University 👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻
The real McCoy needs some intro music, I'm thinking Billy's got his beer glasses on by Neal McCoy.
classic GM Codes…Classic Land Rover codes Too I just ordered a new solenoid for my wife's Disco 2 . It's in the engine bay so much easier to access. LR did something right!
I did a program like that in my elementary school and high school, quite a few auto mechanics I've worked with & learned alot from them.
He couldn't have a better teacher.
It's so sad that the highschools don't have auto mechanics classes now like we did back in the day.
So what is a common GM small leak source failure, the fuel tank ring seal? Assuming the solenoids check out ok.
I sure hope the intern McCoy will be able to grasp diagnoses of modern vehicles. the most important question is WHY, and then HOW. then the fix is easy. best of luck to him. Thanks for the video and I hope you have a great day.
My first job at a workshop from trade school was a new clutch bloke said there's the car do it no help no tips. I think he wanted me to tell him to get fruited but it was done by the end of the day.
I'm amazed the battery maintainer is all tidied up with the cords all nicely stored. You'd think that thing would be swinging from the garage door rails 24/7.
That is exactly what schools need! More trade training!! Not everybody wants to go to a traditional college
It is great that you open your shop up to kids trying to figure out what they want to do with there future. You sir ARE the example to follow!
It's nice to have a learning helper
Couldn’t think of a better bloke to be trained by. Take every little bit in, McCoy!
I know of no one better to teach a young man the ins and outs of modern auto troubleshooting.
One lucky young man to learn from you.
How do you know what size/amperage light bulb to use to test ecm voltages without damaging the ecm?
He's learning from a pro. Did you give him a hat with pen included? Thanks for the upload
That young man is being taught by the best.
We’ll just keep going because we didn’t know we were gonna have until we knew what we were gonna have- yogi
I foresee the name Eric O becoming a cuss word at any future jobs Mr McCoy has. "Well Mr O would have saved time by troubleshooting this first." "Mr O would not have screwed over the customer like you did." "Mr O prefers the term 'Mother LOVER' vs what you just said."
He's incredibly lucky to have you as a mentor and have an impact on his career. Good luck Mr McCoy!
great thanks for taking the time to teach him. ive said before you would make a great trade school instructor . very entertaining and instructive videos as always
KING
Even repeat are good for folks on dif models help us in lo g run to learn more
Great Vid. Happy new year Eric
Foolproof………….."Any fool can fool with it without being fooled"!
Click 😊click for the algorithms. ❤️your videos
Easy fix but a good lesson.
Hopefully the Hatfield interns don’t show up at SMA. You’ll have a world of problems! Lol
speaking of High Schoolers can you give a update on Hannah, lol we know what Josh is doing, but a up date on how he's doing away from the shop would be great too.
Ha, that's a feature on those cars. Changed it 5 times on the wife's 2008 Impala over it's 300,000 mile life. Saving the world 1 puff of gas vapor at a time!
Happy New Year Eric. Thanks for everything you do for the auto repair industry. McCoy is luck to work with the master.
In 1997, I was a high school intern at my local JD dealer. They took a chance on me and I have thanked them ever since. That was 26 years ago. My how time flies!
Eric got a question. (like you never get any of them) what kind of scan tool would you recommend to someone that is not as well versed with scan tools like me. all i have right now is a code reader and have had the need for a scan tool that i can do more with that the code reader can not do but one that don't break the bank for a shade tree mechanic like me.
Nice they have an apprenticeship program.
Would the car pass inspection with that frame rot….
And yet another satisfied customer, way to go Mr O
Chevy Thunder ⚡️💥⚡️
Shop has to have a good reputation in order for a high school to consider them for interns, something to be proud of, it is a great accomplishment.
Always wondered on the interns and such from schools, can they drive customers cars, and if something happens does the school carry insurance to cover it, or is it on the business?
After spending time with you, I know, I would want to do automobile repair….super good of you to participate in their program…he is one lucky young man! Cheers!
He's learning from the best.
Thank you Eric for showing us weekend guys how to test and what to look for on a handheld!
Mr. O is one of thew few channels I automatically give a 👍. You know it's going to be good. His skills and knowledge are top notch.
Thanks for this video.
You're awesome, always good to have refreshers
Corroding solenoid wires, poor design maybe.
Dammit Eric, I'm just a doctor! — McCoy
Mr. O, please dont apologize for a "repeat" video of a repeat concern on a GM. Just think how many of them you've done that you didn't post!😂
Man, McCoy is going to see you working on cars and think it's all easy. They scored big time in getting SMA as their study spot!
You forgot to say NAPA not a sponsor.
I miss the Avoca Smoka
It's about time you got an assistant! You're not getting any younger you know! It's going to take a long time to share all the experience you have. The real McCoy?
Repeats are good and appreciated Eric!!! Repetition is how I learn best. Awesome that you're doing the apprenticeship program!!
Nothing wrong with repeats in my opinion , I like repeats .
HS intern cool!
A lot of things in life repeats itself. No Worries!
Excellent vocational program you have in your local community. We need less college edgeumacated folks and more young adults who know how to repair and build….. (spelling error purposely placed within)
New employee ?
I like NAPA best.
Recently I had gotten a Coil for a 5.3 GM from Auto clone .
Turned out someone switched the part in box with another cheap Chinese coil off Amaclone and returned fake part back to store which I ended up with .
Auto clone told me this is a common issue now
I also had a counterfeit NGK iridium go bad .
Beware and double check parts .
Excellent channel 👍
❤️❤️🙏 Good Luck McCoy.
Some days these easy jobs are good and just remember there are new younger guys starting out so this is new to them, Pluss it's free for us so even if your just sweeping the floor it's a video for people to watch and today Im sick so simple is better
Great to teach kids new hands on skills. We don't need more pencil pushers but actual doers.
chevrolet paying the college tuition for mechanics kids since 1911. snap-on ceo claims if not for chevrolet they would be out of business. like a rock they never move until pushed
Nice quick video and diagnosis. Hopefully he is the real McCoy. 🤣🤣
McCoy couldn't be sitting under a better oak tree of knowledge than Eric O.
I've gotta give you 100% congrats for having to deal with rusty crap everyday, these things we do don't see in OZ if we see a 20yr old car it usually looks like it just come from the factory, so props for your work in a shithole (no offense meant but it is ha).
Short and sweet, but not every car needs a 4 video special to fix.
Eric I still don’t fully understand the vent valve system but little by little I’m learning about 20 more vent valve videos I’ll be qualified to change an air filter.
WELCOME MCCOY!!
Eric O that's awesome that you do the internship with the school! What a great experience for them! Mrs Tizzo andni would like to sign up for your YouTube internship program if we could? Lol. Happy New Years to you and Mrs O and the family 🙏🙏🙏