Chevy Trax / Cruze / Buick Encore Valve Cover Replacement - P0171 Bank 1 Lean

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- Valve Cover - amzn.to/2txSpRS
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- Gasket Maker - amzn.to/2tw9Nq2
- Brake Clean - amzn.to/36uKzae
In this video, I show you how to replace the valve cover on a Chevy Trax / Buick Encore for a P0171 error. The Valve Cover is sucking air and causing unregulated air into the system.

[@ChadWilliamsFixesAll]

If this video was helpful, consider donating :) Paypal - paypal.me/chadwilliams89 Cash App - cash.app/$chadwilliamsfixesall Venmo - www.venmo.com/u/chadwilliams06

[@hannfc]

This is such a great educational video. I was able to replace my valve cover on my own in about an hour and a half. (I'm a nanny, not a mechanic 😂) I like to work on cars and if I can do the work myself, I try too. You did a great job explaining everything! ONLY things I got caught up on, was taking the left side piece off that holds hoses, and the oil filler. Both held me up bc I hadn't messed with either before. But I figured it out! Thank you for making this video and listing the parts used. It was such a huge help to use "youtube-university" lol

[@TheBigEmiliano]

This is gold, I can't even find a repair manual online. Very thorough video 🙏👍

[@fredkeele6578]

My daughter just called me with same description of symptoms. She got oil changed at dealer, afterwards, check engine light came on, running lean, and tech she took back to out finger on that hole and had leak. So, if they don't cover on her lifetime warranty, I'll be doing it under "Dad, help" lifetime warranty. Lol Thanks for the video, and that it was early on search list on u tube.

[@aWildJP]

If air is coming out, it means it’s bed correct?

[@jimmynoneya2584]

Awesome! Very thorough, concise and to the point. You even dumbed it down enough for an idiot like me. Thank you!

[@tracyduchienjr5945]

Thanks man, this was a perfect video for this issue. I have the same issue with my 2013 Buick Encore (same engine) and I was just going to replace the gasket but you showing how that diaphragm shouldn't be sucking wind convinced me to replace the whole thing. Mind was like one that put their hand over a vacuum hose while it was on;is would such and whistle pretty loud. Also, kudos on doing a KZbin video correctly in explaining everything but GETTING TO THE POINT and having the video speed up during the labor parts.

[@Kiefdaddy89]

I'm about to do the same thing! 2017 Buick Encore, just rolled over 110k miles and is doing the same wind noise.

[@capoplays2032]

I just finished doing this to my trax it was a mission taking the valve cover off but once that comes off it’s easy after that. I feel happy thank you for the video it helped me a lot.

[@aguillot1984]

Update... Replacing the valve cover worked! No check engine light and runs like a champ! Thanks a bunch!

[@aWildJP]

If air is coming out, it means it’s bed correct?

[@newton296]

​@@aWildJP wondering the same thing. Air is blowing out on my encore 2016

[@xxmadmanxx9882]

@@newton296yes its bad and your check engine light will come on and possibly your stabilitrak warning.

[@forrestwoodward2324]

Thank you haven’t gotten the part in the mail however that was just as straight forward as I thought it would thanks for the content dude!

[@stevenc8140]

You HAVE such a clear easy going voice to learn this! Thanks for the insights on how to do this

[@shaneflowers1167]

Best video I found for installing a 1.4 valve cover thanks

[@frednich9603]

thanks for the help. I had a hard time getting the valve cover off because the rubber seal was hard as a rock and firmly attached to both the head and the older cover, but eventually I got it.

[@katherynmarshall2734]

Thank you so much for sharing this video now I'm going to fix my own car !!!!❤

[@gregtaylor923]

Thanks so much, this saved me lots of money on my 2015 Encore.

[@user-nd7ic4kn4c]

Great video, even I was able to understand why the whole cover should be replaced. I guess my mechanic knew what he was talking about. Thanks

[@MrPosey85]

Thank you so much, I love KZbin, its cuts down on throwing money at a problem. I appreciate you....

[@leslynnnelson8440]

thank you so very much.....I was able to do y own....15 Buick Encore...part was less than $50 on amazon. Feel very accomplished.

[@ChadWilliamsFixesAll]

Very nice!!! Glad you knocked it out yourself! Save some money too!

[@rickhansen1753]

You are supposed to check the check valve in the intake manifold and the check valve in the PCV breather hose as well. If that check valve in the manifold is gone, you're going to be doing this job all over again in about 2 years or so. The instructions that come with the Dorman valve cover tell you that. Also the gaskets that come with some of these replacement valve covers are junk. Save yourself another headache and put a new Felpro or other quality gasket on it. Also it's a good idea to check the bolts that hold down the timing chain guide. They work themselves loose. Use loctite and re-tighten if they are loose.

[@ledzeppelin1212]

Excellent video! This is definitely the issue on my wife's 2015 Trax. Thanks a bunch!

[@joyboynton7185]

hello! i have the same car was her car having multiple codes or only one

[@ledzeppelin1212]

@@joyboynton7185 I think only one

[@jseb4025]

Amazing audio quality

[@frankdestra6576]

Thank you for the video. Well made without alot of useless babble .

[@deannaoakley2866]

Very easy to follow, nice video

[@ChadWilliamsFixesAll]

Thanks! Glad it helped!

[@enriqueolvera7490]

Excellent job my friend, thanks for sharing 👍

[@gregory13lil]

Thanks for the great video!!!! I’ve been chasing this problem on my daughters 2018 Encore and need to check this now. I’ve replaced engine air filter and purge valve solenoid and the check engine still stays on after cleaning. My long fuel trim is a little high around 15 and short fuel trim is close to 0. Edit: I checked the valve cover and it’s not leaking air like your video shows. May try a PCV valve if it comes back after clearing it again.

[@lindabentley7624]

I have a 2018, did you figure it out?

[@kennygroseclose8960]

Thanks man this Is Gold , Appreciate it

[@poguemahone8321]

Brilliant video. Thank you sir

[@mmnlcrzd5778]

thank you so much for this! Really helpful. Can you please let me know what are the torque spec for the bolts? My apologies. You actually mentioned it at 9:11. Again thanks for this very helpful post!

[@ridgegillespie2934]

Thanks for the video it save me big time

[@jonmartinez1855]

Great video! This video absolutely helped me complete this repair flawlessly. 35min from start to finish. Thank you

[@ChadWilliamsFixesAll]

You’re welcome!!! Glad to help and happy it went so well for you!

[@OmarVW]

Muy buen video, saludos desde Puebla, México

[@luciaelizabethgalvan1187]

VERY GOOD VIDEO, THANK YOU.

[@garnellwalls3721]

Thank you for this video

[@daveramsay8115]

Awesome video!!

[@stevenc8140]

I DID all of this…and I still get P0171 code. I’ve replaced the check valve hose, evaporator hose above adjacent to where your working. Air Filter and cleaned the MAF sensor and throttle body. STILL HAVE rough running and damn P0171 code. What’s next? Fuel filter? I’ve spent $200 on parts & paid a guy $150 to install. My original mechanic wanted $500. With all the aggravation, I think it would’ve been worth it.

[@babaloo8889]

Covered everything great -- except for how you remove the oil filler neck from the OE valve cover!! Can you explain please?

[@MtrshowRadiostation]

I did it on my car last night. Took about 45 minutes. You need that torx socket for the wire pack. It was not included in the description. I had all the parts but that one. I used some bit from my toolbox and stuck it in a small socket. Kinda worked, at least to get them loose. Putting them back in it helped a little. Still have to buy one to make sure its tight enough. All my check engine lights are off and car runs much better.

[@stevenc8140]

He did verbally mention this donkey!

[@aguillot1984]

I already replaced the PCV valve on the top rear of the manifold. Hopefully replacing the valve cover turns off my check engine light, because I am getting the generic too lean code. My mechanic buddy said the other PCV valve is built into the valve cover and said it should fix it. Just got the valve cover in today so I hope this works! Thanks for the video👍

[@santosrodriguez8651]

did it work

[@aguillot1984]

@@santosrodriguez8651 yeah it did work. I haven't gotten any more codes or engine lights! Definitely didn't want to get a new turbo!!

[@santosrodriguez8651]

@@aguillot1984 i just bought the cover and replaced it after going back and forth to the mechanic after giving this dude 800 dollars to change the damn o2 sensor, the maf sensor, and some thing else and it only made it worse. bought this thing put it on and running like it just came from the dealer brand new.

[@yadiraarredondo8175]

VERY GOOD VIDEO, THANK YOU

[@ChadWilliamsFixesAll]

Glad you liked it!

[@Melriv201989]

The doorman valve cover I order brought an o ring where does it go too I didn't see you add one

[@angelhawk8657]

did you put the goop on 2 spots or 3 because of uneven areas? at 7 minutes in

[@joshualand5261]

I have this problem in my Cruze. Is it possible to only replace the diaphragm instead of all of the head? I bought the replacement diaphragm do I need to buy all of it ?

[@SnoopDawg1963]

Can replacing the valve cover gasket cause it to blow crank seal??

[@ashleysandia2528]

Can you specify what you got? Like all the tools. I'm new to this and not sure what to get. Mine is 2019 buick encore

[@bobbyivey3722]

I like the video is very helpful

[@ChadWilliamsFixesAll]

You're welcome! Glad to help!

[@annelorelynntrujillo2514]

as i was torquing down the first nut it popped and stripped the threads. I do not know why this would happen but i am not sure how to fix it. If you could point me in the right direction i would be greatly apreaceated.

[@thomas.bobby.g2918]

this is gonna sound crazy but I replaced the cover because the valve was hissing. I used a different brand cause all the users of the brand in this video had problems. after I was done it still ran rough. I forget to put the dipstick in. I don't know if that was it but putting mine in stopped the wobble.

[@dawnmcmannis2551]

Oh another question the guy that put the valve cover gasket on he didn't torque it down does it need to be torqued

[@TCTCKS]

So I'm having this problem with my 2018 Buick Encore. I am looking for the part at the auto parts store put when I put in pcv valve cover nothing is popping up

[@nebtwins505]

Thank you!

[@dawnmcmannis2551]

Thank you for making that video I surely appreciate it I have a 2016 Chevy Trax so when I first bought the car about 5 months ago that's the first thing I had to replace was that valve cover because the garage said I need it to so I did then yesterday I had to change the gasket and noticed that that hole there where that sound was coming out of is making sucking noise I put my thumb in it like it was sucking in so why would I have to replace it within 6 months that cost me $250 to have that replaced what would make that go bad that fast

[@tonytaylor6436]

It the company... It's a faulty design... Simple... It's about the money.... They make more money of parts than the car it self if you didn't know.

[@ChartsandStats]

What did you use the break cleaner for?

[@billyshepard5514]

Where did you get tge oil filler neck extension? My doman doesnt have that

[@carajohnson254]

Should I going ahead and replace ignition coil pack and spark plugs when I change the valve cover gasket?

[@jedskillz]

I am replacing my sparkplugs while I’m at it too

[@timayscott8450]

Thank you very much

[@robertotr]

Thank you. I did as you showed and the leak went off. Unfortunately the code P0171 still remains. Gonna have to look for other possibilities. I'll venmo you for the help.

[@derekheuerman1763]

Can P0106 and P1101 also be caused by the PCV valve leaking ?

[@jordanwhitt2671]

Wheres the link to the valve cover gasket u ordered??

[@mriv8008]

Great video! I could hear the air whistling as soon as i touched it….I’m wondering if I can get away with patching the area somehow or just driving on it temporarily so I can make it home (2hr drive). Any advice??

[@tonytaylor6436]

Of course you can... Just change it as soon as you can... O.k...

[@aWildJP]

If air is coming out, it means it’s bed correct?

[@tabithatierney6512]

Would this be good for a 2017 Chevy trax?

[@doubleudee88]

Thanks for the attention to details. Just to be clear, every bolt needs to be torqued to 71 right?

[@tonytaylor6436]

Yes ... 71... Is good also..

[@Roadkill_USA]

71-inch pounds not foot pounds.

[@laquann02]

Anyone had a problem with the original oil filler cap not fitting? Anyone know the part number for the cap that fits the Dorman 264-968 valve cover please

[@abramlionel4990]

Was there a small o ring or 0 gasket and where does that go

[@Soozieinthesun]

Thanks for this video. And the part numbers I was able to replace this myself. Dorman products says the intake manifold is likely bad too. Do you have a video replacing the intake manifold? Pretty please and thank you.

[@dawnmcmannis2551]

So Chevy dealership told me the same thing they said I needed to replace intake along with the valve cover I just had that valve cover replaced 6 months ago I don't understand why it would go bad that fast I hope somebody can explain that to me and why do I need to replace the intake manifold also

[@jimspray1735]

@@dawnmcmannis2551 There is a rubber check valve that magically disappears from inside the intake. I'm not sure if disintegrates or if it gets sucked in to the engine. Nonetheless once that check valve goes bad/missing your vehicle will initiate the same PO171 code. If you have replaced your valve cover and the code has not reappeared then its safe to assume that your intake check valve is still in place and functioning. I am not aware of a way to check the check valve except to remove the intake and look inside the intake runner. The check valve is usually orange. There are videos on KZbin performing this exact repair, Good Luck!

[@sheezac5446]

This and Pvc fix kit v3.4 to fix the non return valve and redirects the check valve outside of the engine to stop the whole entire issue. If I could go back and redo something right now I would’ve removed my intake instead of doing it still attached because when I used the wire brush to put the insert I fucked up the tip on the intake where the Pcv hose connects and had to file the intake tip down and used and extra oring from the same hose to put the hose on

[@albertomiranda4890]

One question where are the o rings located

[@billyshepard5514]

I also had to change the oil cap which was swapped by jiffylube with one that didnt fit. The one that fits the dorman is a ACDelco GM Original Equipment FC256 Engine Oil Filler Cap which includes everything tube extension and cap.

[@artisan_electronic_instruments]

PLEASE TAKE NOTE: There is a 90% chance that you need to replace the Intake manifold!!!! Almost every other You Tuber tells you this and it is even in the documentation included wit the valve cover he links too!

[@bill-jl8od]

exactly

[@bL33ds]

Thanks 🙏

[@punishrs]

My mechanic is trying to say it’s the fuel pump I’m getting a code P0 171 that you listed in the video trying to say it’s a $1000 repair

[@heaterhorse411]

Stupid question but is air supposed to be coming out of that hole on the diaphragm at all? To clarify if air comes out of it at all the valve cover is definitely bad. Have a 2017 buick encore and for the 2nd time in 2 years we have another leak... But with the squealing noise coming from it someone suggested a bad PCV or a Camshaft leak.

[@daniliveslifec577]

This is my question as well!

[@sabrinahogan370]

I just replaced one of them and my check engine light is still on I thought if I changed that it would go off but it didn't. What else can I check do u think the o2 sensor is bad.i have a chevy trax 2016

[@chandramlakhan7102]

Reset the codes then see if the check engine light comes on again. I changed a sensor once and the problem still existed until I reset the codes.

[@TEPL1]

So I just made this repair on my wife's Trax yesterday, but this morning I noticed an oil spot in the driveway. I didn't know about using the gasket maker before hand, so could this be the issue?

[@brinkmano9]

Absolutely

[@johnsuggs7828]

Prior to removing any electrical wiring harness connectors ALWAYS REMOVE THE BATTER OUT OF THE CIRCUIT. Remove the negative battery terminal and make sure it touches NOTHING. I usually wrap in electrical tape

[@molleeelevario941]

What torque did you use

[@ArsenalFanIceland]

Hi, i have Chevy trax 2019, I feel the smell of something burning When driving, could there be an oil leakage or something?

[@burnnotice5086]

On my friend's SUV does that. It's a power steering fluid leak. The fluid leaks and drips on the hot engine. The cause is a power steering hose needs replacement.

[@miguelmendoza1858]

I fix this problem by myself but now dealer fix for free no cost

[@gunscountrycorps]

Thanks for the video. It has diagnosed my problem. Does the gasket require any silicone?

[@dawnmcmannis2551]

No

[@davidabbott4784]

That boy be tickin

[@ChadWilliamsFixesAll]

Nah, it isn't ticking. Still running strong. May just be the camera picking up something else. Thanks for watching though!

[@chriscorreayances9331]

Thanks 👍

[@ChadWilliamsFixesAll]

You're welcome!

[@melissacoleman3275]

What happens if you break a screw while torquing ?

[@tonytaylor6436]

You have to drill a hole in the ... Broken screw.... Then extract it with a special... Self...Tap bid.... A very tideus job indeed... But if done correctly...it possible o.k.. after breaking a very important Bolt ... Trust me how hard it can be ... Will make you more careful the next time for sure. 😂... Good luck

[@Zeek800]

Nice to see that Doorman makes an upgraded valve cover. Did GM ever upgrade the valve cover during production? . Since the engine was in use from 2011??? to 2020? and this is such a common issue I’m wondering if the 2019 engines might have a better design.

[@bill-jl8od]

yes they did as well a intake.....

[@bryanmendoza7630]

So If I have a code p0171 I gotta replace the entire valve cover? Not the part only?

[@xxmadmanxx9882]

Its usually built into the valve cover so replacing it is the only option.

[@bill-jl8od]

That maybe not be problem.. mine was a purge value .

[@rhionna]

I have a question - if the gasket seal isn’t seated, does it cause oil to spew out all over and leak??

[@mikebaranREBEL]

Doing This Tomorrow 2016 ..

[@andyclair8876]

Do you have to put the gasket back on that was on the original one?

[@feelingold2995]

i just got the new valve cover, it comes with the new gasket already installed

[@aWildJP]

If air is coming out, it means it’s bad correct?

[@victornaja7927]

I have done this job twice n still leaks out on the valve cover fron corner of cam gears I did put seal where you supposed to but I still leaks

[@juniorharry7785]

Victor naja.. I have same issue with mine. Oil leaks at the corner also .. Im thinking mechanic didn't know about the uneven gap or something cause oil leaks right at that same spot ..

[@victornaja7927]

@@juniorharry7785 hi I found out the problem. it was the gasket it self. I was using after market but the last one I did I went to dealer n it's perfect now. No leaks

[@juniorharry7785]

@@victornaja7927 ok thanks ,I'll try that and look at mines again ..Im going buy an intake manifold also and the valve cover ..and maybe my engine light and problem will be gone

[@Richoff9to5]

So basically is air is coming through that circle thingy then it should be replace?

[@ChadWilliamsFixesAll]

Yes, you are correct

[@newton296]

​@@ChadWilliamsFixesAll what if air is blowing out instead of sucking in? Like my car?

[@pierrefigmin3793]

Can you just replace the PCV valve membrane? I just wanted to know

[@rockytop4]

It not replaceable

[@nictheamazing7812]

I'm a little confused should air be coming threw that hole or not

[@ChadWilliamsFixesAll]

It should not be

[@pormansgoldpmg5493]

Rockauto has the same valve cover by Dorman including gasket for $44.79 plus tax and my shipping was $9.95. Cheaper than Amazon link. Should change spark plugs, while you have access. ACDELCO 41121 (41-121) $ 5.56 x4= $ 22.24

[@frankdestra6576]

Ya I was thinking the same thing re:$park plugs

[@tylerblack3508]

The reviews on the Dorman part are NOT good.

[@bill-jl8od]

Intake is what breaks valve cover .. change intake at same time

[@badazz2969]

If driven long enough it will throw o2 codes as well don't replace them until you replace your valve cover valve cover usually resolves the problem the diaphragm to the right towards the trans fails that's the fault.

[@gar494]

Highly recommend 🙅🏽‍♂️ Not🙅🏽‍♂️ using a Dorman I've used 2 within 3yrs. They have terrible reviews and do not fit correctly. Just pay the extra 10-15 for an AC Delco they're OEM. Great Video though!!!👍 Nice to help me not forget anything.

[@gwendolynmccray4494]

Omg can you come help me please lol I have oil inside mine where the spark plugs are 😳

[@italianozuzu1232]

I put my finger on the little hole .. and my car start throwing so much white smoke from exhaust.....

[@MM-yc9kz]

Same thing happened to my 2012 Chevy sonic 1.4 turbo! Mech. Looking at it said he never saw that happen before Anyone have an idea what happened?

[@levicallis459]

Very informative . Just an fyi , If you do use a flat head to pry, careful not to scratch the gasket surface . A mallet with light taps around it might be an option

[@GamingBallz]

This makes things less intimidating thanks

[@andreharris6304]

👍🏾

[@kevinredford2946]

I'm seeing way too many people in this chat thread, fussing about breaking bolts. Use your DeWalt impactor for removal. Quit being lazy and use a normal ratchet to install. So to you Laymen(DIY) out there, don't use those impactors on a daily basis. I've literally broke a lug nut with one. They're a whole lot stronger than you think. Especially on something as small as valve cover bolts. Jesus Christ people. Not to mention your dealing with an aluminum block. It's not like working on a 350