07 Tahoe Misfire Cylinder 7 | P0307 | Collapsed Lifter

2007 Tahoe Misfire Cylinder 7...error code P0307
Causes: Spark Plugs / Spark Plug Wires / Ignition Coil Pack / Active Fuel Management (AFM) / Displacement On Demand (DOD)
Replaced spark plugs, wires and ignition coil on Cylinder 7 and still had a misfire...after further investigation it was found to be a faulty collapsed AFM lifter. Released the lifter, modified the VLOM and had ECU reprogrammed to delete the AFM feature following Crazed Performance LLCs ‪@CrazedPerformanceRepair‬
Everything works well now thanks to the modification instructions by Crazed Performance LLC at www.crazedperf... and the AFM delete by Brendan over at www.lt1swaps.com

[@dannorman6721]

Amazing video. The only reason why I attempted this repair was because of your video. Thank you very much. Your honesty and your easy to understand steps made this repair fairly easy.

[@87SSBOI]

Thanks bro!!! Glad it helped!! 🫡

[@WolfPackPerformance]

Solid content and source of info for someone who’s not a mechanic. This should assist someone in the right direction of diagnosing what may be the culprit.

[@619Rider69]

Very good job my man I have been fixing cars for as long as I can remember and for someone who doesn’t you did a fantastic job very impressed… 👍👍

[@87SSBOI]

Thanks bro! Means a lot...had to save some money and get my daily back on the road 🦾

[@savageboy2257]

@@87SSBOI my 08 gmc is doin the same thing #7 but I’m try find the torque specs and sequence for everything to put back together

[@87SSBOI]

@@savageboy2257 I had to Google it...if I can find it I will post link here...but I do remember be careful with the intake specs...I mistaked ft in for ft lbs and it was almost a bad day...good work tho man glad you decided to DIY...and just to be sure u did have the AFM deleted from the ECU right? If not, the lifter could immediately collapse again as soon as you start it up...just FYI

[@Clohehopewillis]

You Gave me Inspiration for Real and to say "your not a mechanic" I really couldn't tell...Great Job👍🏾

[@bvixly932]

@87SSBOI is there any chance i could get that same piece you put in and do the same steps with out the delete

[@DavidGuns]

My hat off to you, for someone that said they never did anything like this before you did a great job. Best thing to do is take your time, take pictures and videos and never be afraid to ask questions. I did notice your oil pressure was low before and after. On some of these 5.3 the O ring that holds the pick up tube goes bad and you suck up air. It is an easy fix also. Not sure if that is your problem. As a master tech of over 30 years, I must say good job

[@87SSBOI]

Thanks man, that means a lot!! I had to do something cause this was my daily driver and my daughter had just total loss her car so we immediately went from 3 cars to 1 car and that sucks...Tahoe sat for a month so I decided to give it a go! And yea I have heard about the O ring issue...I will look into that...I did have a faulty harness going to the oil sending unit and I'm at around 40psi after swapping it out but I think I still should be higher than that so the O ring may be the culprit...Thanks again!

[@DavidGuns]

@@87SSBOI If you put your mind to it you can do it. Sure some things a shop needs to do or someone with a full access scan tool. If you are getting around 40psi then that is ok, one thing you can really never trust your factory gauges. You could install a oil pressure gauge to take place of your. On these GM Clusters the stepper motors go bad, they used cheap solder and they develop cracks which will make the gauges act up. I wish when I went to mechanic school back in the 80's that we had social media like it is now lol a lot of reading back then but I wouldn't change anything from all I have learned and still learning every day.

[@87SSBOI]

@@DavidGuns yessir!!! Thanks for all your feedback!

[@DavidGuns]

@@87SSBOI This guys channel is good, he really goes over everything and shows you. He just put this video out Part 2 of a Chevrolet Express 6.0 where he replaces the oil pan gasket and pick up tube O ring. Thought you might enjoy it kzbin.info/www/bejne/qXaxh5xqmZyGfdk

[@Adamz678]

​@@DavidGuns I just seen it, very underated content. Seems like humble cool dude who has a hidden talent for wrenching. 87SSBoi, keep it movin'.

[@tjshat5635]

same issue, great video to help non-mechanics diagnose. luckily mine was just the plug

[@87SSBOI]

🫡💯

[@juniorgracia8450]

I have the same problem too on my 2008 GMC Yukon. Thanks for your video bro!!! Appreciate these types of videos because we aren’t professional mechanics and these type of jobs they will try to take all of your money. Great work!

[@87SSBOI]

Yes they will...they wanted I think like $2500 if I remember correctly and I only spent about $75 and few hours of time...I still daily drive my Tahoe and take it on long road trips with no problem

[@sergioortega1110]

Same issue here, and we’re learning as we go. 🛠️

[@87SSBOI]

Yup!

[@jamienwhite1137]

Better get to work.. Thanks for the guidance!

[@makeitwork4you294]

Thanks for the video. I’m having the same issue and the lifter is the last thing left. But appreciate you for putting this video out as I’m about to dive into mine now. Mad respect for you bro. You did the job honestly and gave credit where credit was due. I got mad respect for you. And really appreciate you taking the extra time to make the video. Thanks again bro.

[@87SSBOI]

Thanks for the recognition and glad I could help with your issue!! Btw, my Tahoe is still running strong🦾

[@makeitwork4you294]

Just got it all back together and running better than I ever remember.

[@87SSBOI]

@@makeitwork4you294 Great to hear!!! Mine runs a lot better on all cylinders at all times now as well!!! Good work! What cylinder was it?

[@hjjackson05]

I've looked at hundreds of videos and yours is absolutely the best that I've ever seen. Thank You

[@87SSBOI]

I appreciate it!! Worked great and put a lot more miles on it with no issues...I just pulled the engine and tore it down for a swap into my wife's 86 C10...everything was still intact! All lifters were good including the one I repaired...it was not collapsed

[@mullenauto]

Ugh same issue misfire cylinder 7. Tapping. Sitting at mechanic rn. Im out of town for the week. May just take it back and do this. Great video

[@87SSBOI]

Thanks 💯

[@mullenauto]

@@87SSBOI driveway fixed, first time attempting a repair like this, decided to clean throttle body so it turned into a Saturday Sunday job but still running strong 3000 miles later

[@87SSBOI]

@@mullenauto yessir!!!! This was my first time too and I put another 20k on it before it totaled the Tahoe but I then pulled the drivetrain for a 86 C10 swap…everything still A1!!! Saved a lot of $$$$

[@CrazedPerformanceRepair]

I just noticed the mention feature on KZbin in my dashboard! Ha! Anyway after 2 Years I'll finally respond. Thanks For the mention Sir!!

[@87SSBOI]

No problem man!!! I definitely appreciate you and your content, it has helped others and myself tremendously

[@BackToTheRoots2012]

WOW! My Suburban stand still for 3-4 years. Now i see your video. I will check my Engine and i think this is the problem of my car. Very very thanks from germany! :-)

[@87SSBOI]

Hope this helps ya!!! 🤞🏾🤞🏾🤞🏾

[@MRRANDOM1]

Man it just happened to me after getting it serviced today. tow truck on the way 2019 Tahoe po306 😢 mines doing the same thing transmission shifting hard as well. Ole Matt Bower home of the life time warranty hopefully they get it right without all the BS!!

[@87SSBOI]

Dang man…smh…hopefully they get u right 🤞🏾

[@MRRANDOM1]

@@87SSBOI thanks brother hopefully!! Ima see what they talking about first before I put my hands on it 😒

[@4alphazulu]

You talk about your Tahoe the same way I do 🤣🤣 Glad you were able to save her. I got lucky...I was able to disable my AFM before I ever had a lifter problem. 233,000 miles and going strong.

[@87SSBOI]

Nice!!!!

[@MichaelFulmorePage]

Thank you so much for this video. I couldn’t get past the fuel injector connect. This video save me a fortune. I was able to get my lifter unstuck on my 2009 Silverado.

[@87SSBOI]

Yessir!!!! Glad to assist!!! Please be sure to get the AFM/dod removed from the ECU tho or it will happen again

[@brianharrington5176]

Guy here is better at teaching than anybody I’ve seen so far on KZbin I really like this guy and I’m gonna like and subscribe to everything that

[@87SSBOI]

I appreciate it man! Means a lot

[@oscargodoy908]

Bro I'm proud of you doing this so far because I can't go far like u did tanks for all u teach

[@87SSBOI]

Thanks man! Had to make something happen due to budget...if I can do it, u can bro 🦾

[@famfactor3073]

I have the exact same truck only mine is black. It's running rough and giving me a code for deactivation cylinder solenoid #7 . I'm going to buy my first set of tools and do the same thing. Thanks for uploading the blueprint bro. I'm still paying a note on my truck. You're heaven sent.

[@87SSBOI]

Hope u get it figured out man…also check out Crazed Performance Repair…I learned this from him and his vids are more in depth

[@famfactor3073]

Thanks bro for the direction. I will check those guys out as well. At this point I have no choice but to take matters into my own hands.I changed my flywheel and once everything was put together again I got all these codes and my engine started running rough.

[@thegreataquarius3749]

Hey I'm in the same boat working on my neighbor 2013 suburban with the same problem. Just hope it's not a collapse lifter. Not bad for a first timer 👍. Your commentary is funny 🤣!! You saved a lot of money doing it yourself. That is the reason why I started doing my own repairs. 🇺🇸 1st 4ever

[@87SSBOI]

Thanks!! Def saved A lot and it wasn’t difficult…worked like a dream and lasted with no issues

[@d3adf3ar5]

If the problems the same as his then it's a stuck lifter....mines the same too on my avalanche and it's the same lifter problem....hopefully the cam isn't damaged

[@leonbell9653]

I have the same issues with this Tahoe that I’m using. Will be doing this after this state thaws out. Thank you for the video!

[@87SSBOI]

No problem...and she's still running strong with this remedy...runs better than it did before because eim on all 8 cylinders at all times

[@rupertoruiz]

It’s a really great job..!!! Thank you, really appreciate your time on this video, easy to understand and very very helpful. Thank you for share it with all of us. 👏👏👍.

[@87SSBOI]

Glad it was helpful…it worked great for me as well as a lot of others!!

[@SD4philly]

good job I have 04 chevy silverado pickup work truck went thru went through same thing bought 2 modest priced OBD- diagnostic (7 to 10) via amazon 2 diff brands both saying same thing been thinking for few weeks maybe it's just that darn computer I going to get it checked out gotta save money where you can save it , saved money is made money

[@87SSBOI]

Yessir!!! Save them 💵 💵

[@clarksmarketing1330]

You did a great job on this my Brotha! I’m the same way.. I’ll give it a shot myself before I take it to a shop and get ripped off. Especially, one they get real high mileage I prefer to try working on it myself.

[@87SSBOI]

Yessir!!! Thanks! It's still running strong

[@stevenlynch6605]

Now you have me rethinking the problem with my LS3 6.2. when I was doing my remote start in the morning I would hear a faint tick on the driver side then all of a sudden blinking engine light and stability control service light. Live data shows ,#3 misfire . I change plugs wires and #3 coil, still have misfire engine shaking. #3 plug it's not one of the AFM cylinders which are 1,7,4 and 6. So maybe I have a stuck lifter like you had.

[@87SSBOI]

That's a possibility...hope u get it figured soon 🙏🏾

[@MegaHowtoMan]

Thats a tough job. Love these 5.3L V8s. Good job. Range AFM Delete is all you need to disable the V4 mode. Plugs into OBS port.

[@87SSBOI]

🫡🎯💯

[@airownguyen9555]

Does AFM delete work on hybrids?

[@87SSBOI]

@@airownguyen9555 idk

[@ernestbyrd300]

Where do I get it?

[@87SSBOI]

@@ernestbyrd300 all info in description

[@MAD_BST]

hopefully you got this fixed. collasped lifters means its time to afm delete. the afm system goes bad after like 50k miles and usually causes hella heartbreak. more if you have an upgraded camshaft. same thing happened to my car rn. ordered an afm delete kit, new pushrods, springs, etc that the person who had my car before me should have but didnt when they upgraded the cam. but the afm delete kit from a site like texas speed will fix this issue and give you the options you need to make sure it doesnt happen again. Also i would suggest link bar style lifters. why? one less fail point by removing the plastic trays all together. if u dont believe look up what happens when ur plastic lifter tray starts to get old. gl gb if you do the new lifters you can also add more hp to your car. glad to see you got it all sorted and this will def help my problem so you did help a bro out lol.

[@87SSBOI]

Thanks for the info!!! I did the backyard afm/did delete but in the near future I plan to order the kit...it's working fine so far tho...Crazed Performance Repair's videos helped me out tremendously

[@Pibs2525]

hello im looking to do this to my 07 sierra since its having all the symptoms @87ssboi had with his yukon. can you please give me more info on the afm delete and how to possible make a permanent fix so i wont have to do anything else to my truck. thanks in advance.

[@weedwizard09]

This video is the best I have found thanks very informative

[@87SSBOI]

Glad it was helpful! 🫡

[@indevibe]

MA Brudda, am driving to work today and THE SAME THING happened to me, I stopped @advance auto, changed the coil, wires....bit it did not fix it... I think it's a stuck lifter just like you said... I will Rlrea H out for the AFM delete... Thanks man🎉🎉🎉 cheers... I was @ a loss with this....

[@87SSBOI]

No problem bro, good luck with it…they make a full DOD/AFM delete kit if you want to go that route…it replaces cam, lifters, etc but u still have to get the ECU tuned for it

[@zackbullock8198]

Thanks for the video. I have a 2004 which is not a supposed to have AFM but I have misfires and don't know why. I glad you let us see how you fixed the lifter.

[@87SSBOI]

No prob

[@andrewmichael345]

Great job for a first time. Its my first time going to be doing the same and i was intimidated until i watched your video. Thanks for the motivation bro. Amazing job again bro 👏 👍

[@87SSBOI]

No problem, glad I could motivate you to get it done and save some money!!!

[@Johnny2000k]

Love your video brotha. This helped me out a lot cause im struggling with money right now.

[@87SSBOI]

Man listen, I had to figure something out cause I don’t have the money they trimming to charge at the dealership…glad I could help keep some money in your pocket

[@TheProtoke420]

This video just saved my ass. I'm 90 percent sure this is what's going on with mine.

[@87SSBOI]

Glad I could help!!! And just so u know it has worked great since I did it and at full V8 power at all times is great!!!

[@jacobstombaugh]

Is your Tahoe flex fuel?

[@truthandreality4650]

Your video was very genuine and enjoyable. Great job!

[@87SSBOI]

Thanks 💯

[@jesusshernandez490]

Gracias por tu vídeo yo tengo el mismo problema cilindro 4

[@87SSBOI]

You’re welcome!!

[@luisgallardo5234]

Yeah most common thing when this happens I just found out lifter will go bad so need to replace that but also make sure you replace the oil pan pick up tube o-ring and while at it replace the oil pan gasket as well won’t hurt to replace it since the oil pan is gonna come down. I will be doing this to mine as well

[@87SSBOI]

Yea I had to change the pickup tube o-ring..got my good oil pressure back!!!

[@murvisstribling4035]

THANKS FOR THE INFO LEARNED SOMETHING NEW TODAY LOL

[@MRRANDOM1]

This one trending gang nice video 😂🎉👍

[@87SSBOI]

Man this my most popular vid…still getting views and making more bread off it than anything else I’ve dropped

[@MRRANDOM1]

@@87SSBOI hell yeah this be the ones that be trending 🤣🤣👍

[@billmoore2300]

Great job videoing this post. When you startled removing oil sending unit and the plate it was attached to lifted and you had all the bolts riding in the holes I almost choked! I could just see one falling into engine! I couldn't tell if you shop vac that intake area before going any farther but I hope you did. I totally enjoyed all of it.

[@87SSBOI]

Yea I cleaned up real good…I appreciate the support!!!!

[@candelarioroblesjr.7821]

Nice my only recommendation would be before removing the vlom is to clean up the debris a bit avoid dropping extra spices into the void haha. But very good job.

[@johnjohnson2675]

Man you just helped me out alot, headhunter is doing the same thing only diff cylinder 4 misfire, I've liked, here's my comment and I'll subscribe Dogon, thanks bro

[@87SSBOI]

Thanks for your support...glad I could help 🦾

[@branthemuffinman]

Great video! Huge help!!!

[@87SSBOI]

Glad it helped

[@dbotanist2079]

Bro the 10mm line got me 😂

[@87SSBOI]

😂😂😂

[@jamesbasye2362]

That flashing check engine light can also happen if you have a leak on your fuel rail, i had an idiot that swore up and down he was a mechanic work on my vehicle and he took the fuel rail off to replace knock sensor, i took it to a real pro and told me it was spraying fuel at my fuel rail

[@GoldieReddSpits]

Good job brother I’m having the same problem with my RAM and I’m thinking about doing the work and saving myself $3,400

[@87SSBOI]

Yes indeed...I only spent like $75 to fix it...shop wanted $2500 to do the same thing

[@GoldieReddSpits]

@@87SSBOI that’s crazy bro. If I do mine I’ll let you know. How long did it take you?

[@87SSBOI]

@@GoldieReddSpits about 5-6 hours...recording included plus it was my first time doing any of this

[@ronaldbrown7824]

Well done ✔️

[@87SSBOI]

🫡💯

[@Wero667]

I’m having the same problem with my 2009 Silverado. I changed the spark plug New wires new ignition coil. And still misfiring on cylinder 8 I was thinking the same bad lifter. And after seeing this video. I believe that’s my problem. I’m going to check it out thanx man. Good video man

[@87SSBOI]

No prob bro....good luck 💯

[@michaelchavez8181]

Did you figure out your problem? I have the same issue on my 07 Suburban. Changed spark plug, wire and ignition coil. Still getting misfire in cylinder 6.

[@87SSBOI]

@@michaelchavez8181 yea a collapsed lifter

[@robertb2diggs1]

Great video, thanks for the info,

[@87SSBOI]

No prob…Thanks for watching

[@mobilemoke-ne2gr]

He pulled up to the scene wit da cylinder missing! 😂

[@87SSBOI]

Still running strong too…just pulled it for a C10 swap..everything still A1

[@carlrockaway1696]

You did a good job there, I'm having the same problem with my 2009 gmc as well, it has the same engine

[@coreyjackson2028]

I’m having the same problem on my 09 Silverado what did you do too fix it?

[@carlrockaway1696]

@@coreyjackson2028 I didn't get it fixed yet, I'm saving some money up so a mechanic can fix it for me, he said that the #7 lifter is bad, so what he said he's going to do is take the top half of the motor apart and replace all the lifters and the oil pump sensor and replace all the other parts including new gaskets, parts including labor he said will cost me $2,200, the dealer told me it would cost me $4,500, the dealership is crooked

[@papoortiz9844]

I can do it for $1600

[@carlrockaway1696]

@@papoortiz9844 where are you located

[@sumonegro]

Thanks for the video I’m going to try and fix mine now

[@87SSBOI]

🦾

[@n2deep637]

What did smacking that rod in the hole do for the lifter to make your lifter tight again ?

[@87SSBOI]

It realeases the spring pressure on the lifter

[@davidberger8829]

Man.... At first I thought nah, because I have the same ride as you and same pride as you and same problem you had I stuck with it. Holy s*** bro they ought to call you Captain save some doe$

[@87SSBOI]

😂😂😂…I’m all about saving…that money can go to many other places…this repair worked great for a long time…totaled the truck and still grabbed the engine out for a 86 C10 Swap..pulled engine apart everything still looked great and the lifter was not collapsed…all that to say this, IT WORKED!! A lot of people doubted it

[@josephballard7722]

Thanks a lot my truck was running my crazy 👍🏾

[@87SSBOI]

YW!! Mine is still running great after this!!!

[@jessepage318]

Thank you you friend! Very helpful

[@87SSBOI]

Glad it was helpful!

[@Pibs2525]

Yo im glad you fixed your truck, im also having the same issues with my truck. i have a 07 sierra and i first got a misfire on cylinder 4 code p0304 then i changed all the spark plugs and i got a random misfire with the code p0300. i ended up changing my coil and spark plugs wire and its still doing the same thing. someone told me that ac delco spark plugs are recommended for my truck but i used bosch spark plugs, im wondering if you think that can be an issue? also what did you do to finally fix the issue?? im not trying to drive my truck like this since it shifts rough on 1st gear and im not trying to mess up my transmission. thanks in advance, i also did remove my throttle body and mass air flow sensor and cleaned both but no luck.

[@87SSBOI]

I released the collapsed lifter and deleted the AFM...check out @crazed performance repair for more detailed vids on the repair...thanks for watching and good luck🦾

[@Pibs2525]

@@87SSBOI will do and thank you.

[@MiguelAngel-hj1ny]

Maaaan my pick up just starting doing that 🤦🏻‍♂️ then got the video ,,so now is my turn to fix mine

[@87SSBOI]

Yup... unfortunately...but it can be fixed...mine is stilling running strong🦾

[@mbmusicoficial]

@@87SSBOI I’m next in line to do this to my Yukon

[@87SSBOI]

@@mbmusicoficial gone n get that Yukon right 🦾

[@ericknight6331]

Bro I’m going through the same sheeeee! Same year and everything

[@87SSBOI]

Very common

[@paullahmers7939]

Me too same year and miles

[@CrazedPerformanceRepair]

Not sure if we chatted about it but, your oil pressure is low. Might want to look into that. Thanks for the shout out. Feel free to PM me on my website if we didn't chat on it. I can give you all the common possibilities.

[@87SSBOI]

Yes...I ended up replacing the pickup tube O-ring and I'm good now!! Thanks!!!

[@dustindhansen]

CPR is the goat of this mod. I did the same thing and I'm not a mechanic either. I drove on it 6 months without sending the computer off. I have a misfire in 4 now, but couldn't get it unstuck. I parked it and bought a Toyota. I'll mess with it this summer. Have you had any issues since then?

[@CrazedPerformanceRepair]

@@dustindhansen darn, if 4 has an issue now while having the VLOM mod done it's not likely a simple collapse. It's more likely a spun lifter from a bad plastic guide or something.

[@87SSBOI]

No I haven’t had any issues…still drive it everyday and on road trips

[@87SSBOI]

I also sent the ECU off tho and did the VLOM mod tho

[@stevefarthing8745]

Hey man! Great job. Have a question. Did you reset the lifter like the other guy said? After release did you have to hammer on the push rod to lock the lifter back down? Thanks

[@87SSBOI]

I didn’t have to Thanks man…it saved me a lot of money!

[@stevefarthing8745]

So just reinstall the rocker arm and done? What’s the torque spec? Thanks again man! Helped a ton!!

[@stevefarthing8745]

no setting any valve lash or anything like that??

[@87SSBOI]

@@stevefarthing8745 nah

[@87SSBOI]

@@stevefarthing8745 just set the rod back into the lifter and torqued the rocker arm down

[@thomaskutches2613]

Hey great job, when you released the lifter with the screwdriver shaft did you remove the rocker arm? You said you wished you got it on video but everything was still together. Crazed Performance has always had the rocker removed and the rod flies out. Thanks!

[@87SSBOI]

Yes the rocker arm was removed and it flew out…nothing dramatic but it popped out 😂

[@DJMARKEYG]

Great video I’m having Similar problems I have a missed fire on number six change the core pack and it’s steelRunning rough should I take it to the Chevy dealer

[@87SSBOI]

Up to you on the dealer bro but I don't like wasting money on something I can do myself... definitely need to be technically inclined at least a little to be able to accomplish this task tho...the dealer cost is going to be upwards of $1k-$2k just FYI

[@romo2witten982]

Got that code today…..gonna be fun

[@87SSBOI]

Yes it will be...hopefully it's just a coil, plug or wire for you tho...I wasn't so lucky 😒

[@corvettebob96]

Trying to solve 2010 Sierra with similar issue on #1 which is part of AFM. I swapped #1 and #3 coil. Installed new plug on #1. Made another code pop up. It is too cold here to pull engine apart. I want to test wiring tonight before I tell nephew to take it to a shop.

[@87SSBOI]

Yea that AFM is a faulty system..I'm pretty sure u have the same issue I had...she is still running strong since the repair tho and back to being my daily driver!!!! Check out @crazedperformancerepair for more info on this repair...he helped me along the way!

[@corvettebob96]

@@87SSBOI I opened valve cover yesterday. Intake pushrod was bent on #1. Valve was moving freely. I installed new correct pushrod but rocker is slapping on valve stem. 1/4" slack. My guess is lifter is stuck. I do not think the valve was damaged because valve did not dump gas into cylinder from intake until I pushed valve down manually. I have been watching the crazedperformance videos. If a compression test shows good, then I am going to try and release lifter and delete AFM. My nephew can't afford to get it repaired professionally.

[@87SSBOI]

@@corvettebob96 I feel you...exactly why I attempted this myself...the labor will literally kill you 😒...it cost me $75 and a about 6 man-hours...no telling what a shop wants

[@jeffreycts523]

Thx man !! Hella helped

[@bene3944]

I think I am about to have to do this to cylinder 1 on my 2011 yukon denali..showing P0301 code AFTER I changed cylinder 1 coil pack and ALL of the plugs and wires. I need the afm delete for sure.

[@87SSBOI]

Yessir...I definitely had to and now it runs better than ever on all 8 cylinders at ALL times! Check out crazed performance, I used his channel to get me thru this repair...vids are very detailed... Thanks for watching!

[@kingofkings8709]

I had the same problem except my truck had a tap on cylinder 6. Thought it was a spun bearing, or the flexplate. Turns out the dod/afm system caused this to happen. I would seriously consider doing a dod delete bro, bc it probably will happen again. The dod system works good until you get up into higher miles then it starts failing. I'm in the process now of a cam swap, a non dod valley cover, LS7 lifters and tray, high performance pushrods, and LS7 valve springs. They also have a device made by range that you can plug into your ob reader port that turns the dod system off as well.

[@87SSBOI]

Thanks for watching and for the input...my DOD is deleted...sent my computer off and had it removed by LT1swaps.com ➡️ I also modified the vlom for the delete...later on down the road I may buy the actual delete kit with the stage 2 cam and the vlom delete plate 🦾

[@kingofkings8709]

@@87SSBOI I did some research on what you did right after I watched your video. I like the way you did it, it also saves money. I only reason I'm doing the kit is bc I'm installing a bigger cam and it doesn't support the dod lifters. If you don't plan on doing a cam swap the way you got it is perfect. How long did it take to get your computer back?

[@87SSBOI]

@@kingofkings8709 whole process took about a week n a half

[@movhs2995]

Good video man..

[@87SSBOI]

Thanks

[@bryontharp5790]

I hate working on cars in the blowing dirt the fuckin sand the cold wind snow just to make it to work the next day hate working on cars

[@bagshi9014]

list of tools 10mm fuel line disconnect 8mm 13mm 1-1/16 skinny pipe lol hammer chizzle

[@nephew9]

Appreciate the video bro, quick question Did you loosen up cylinder seven or did you just hit it with a hammer till it goes up and it catches the spring? Thanks in advance 🙏🏽

[@87SSBOI]

No problem man...I just tapped it with the hammer...check out Crazed Performance Repair for more detailed vid...I got all info from him 🦾

[@daveconley7192]

You was very helpful I do my own thank tip computer have reset thank man

[@87SSBOI]

Glad it helped…Thanks

[@daveconley7192]

@@87SSBOI I show auto zone thing or about it all they did not know that love video

[@aanyug9832]

Hi First, thanks for the help I did exactly the same as you, but in the minute 26.33 I did not understand the exact method of repair, how is it possible to explain more, thank you

[@87SSBOI]

Thanks for watching! For more info check out the link in my description from Crazed Performance...I got all my repair info from his KZbin page...he specializes in this

[@Princeton523]

So what was the problem ?

[@felipesandoval7593]

another thing guys all those NEWER WITH AFM ALL HAVE PROBLEMS WITH COLLAPSED LIFTERS........

[@alpheushill4292]

Good job 💯💯💯💯💯

[@johnhann7110]

Good job man

[@87SSBOI]

🫡

[@felipesandoval7593]

hey my man let me tell what is its the PLENUM INTAKE GASKETS.BELIEVE ME MY 2001 SUBURBAN HAS 4000.000 MILES ON IT AND LAST WEEKEND I CHANGED THEM AND IT RUNS LIKE NEW.IT WAS IDKEING UP AND DOWN ESPECIALLY IN THE MORNING COLD WEATHER.NOWI IT RUNS AT 500 RPM STEADY..

[@jcid972]

So I replaced the lifters on mine and it still misfiring idk if it maybe bc I didn’t change the spark plug wires n spark plugs or even the coils

[@87SSBOI]

Oh wow...that sucks...I have no idea what that could be...is it still throwing a code?

[@jordanhodge3524]

Always start with the simple stuff first

[@ThatBlueHoe]

Our 2009 tahoe has this exact problem. Have to 2 foot it at lights to keep it from dying, stabilitrac, abs, flashing check engine. Same code as yours gonna see about a range disabler for it too. Appreciate the vid man

[@87SSBOI]

No prob 💯

[@ThatBlueHoe]

​@87SSBoi how long did it take to get your ECM back from the tuner? I'm probably gonna send ours to the same guy but it's our daily is why I'm wondering, and is your hoe still running good?

[@87SSBOI]

@@ThatBlueHoe yup still running great…it’s my daily and I drive it out of town and pull my SS with it…it took about a week n a half btw me sending it and getting it back…good luck bro

[@ThatBlueHoe]

@87SSBoi thanks for the reply man, and I need the luck this thing is a headache 😂

[@victorguyton7119]

Thanks man damn great job cause you showed me what’s going on with mines but where did you order the vlom mod from I need one

[@87SSBOI]

Yessir!!! All info is in description💯💯...good luck with it!!

[@gpatterson3868]

I am having a misfire and I don’t have the money to pay someone to fix it so I am hoping this helps

[@87SSBOI]

💯

[@matthewsalvador9783]

How long did it take you to do the job.?? I knew I just changed out my plugs and wires not to long ago. As well first time changing the pack… thank god I didn’t buy all eight packs… I put would have cost me $500 I’m like dang… I had an idea to check the valve due a afm cly 4 thank god it’s only one rocket arm… but as they say might as well change them all and delete… I got a ava 07 and this video helped a lot… thank you… I sub and liked…

[@87SSBOI]

Thanks!!! It took me about 6 hours total of i remember correctly and that was including me recording so not bad at all...and it was my first time

[@perfectoj7775]

About to do this same thing.. appreciate the video 🗽🗽🗽🗽

[@87SSBOI]

🫡

[@PablooGonzalez7447]

I change the spark and switch but still problem what happened

[@reneegomez69]

What is the afm that you mentioned? Great job. I'm having issues with my 2008 avalanche and never done work myself but I'm tired of feeling like I'm being taken advantage of being a woman. Great video

[@87SSBOI]

Active Fuel Management Thanks

[@phonemd1]

didnt you have to change the cam shaft also? that's what I heard you have to go to get rid of the fuel managment

[@87SSBOI]

No I didn't go that route

[@87SSBOI]

I did the poor man's remedy...lol

[@Clohehopewillis]

@@87SSBOI You and Alot of people ...I was about to buy a air compressor and impact wrench to remove the head and replace them...because its a 3wk back up to even get it diagnosed at GMC and I rather spend the $ on tools then Labor cost and overpriced parts and my truck being down for 1+ mth

[@legendarybigman9534]

Good job!!!i have a Chevy Silverado and it has a misfire on 6 and 7 wondering if it’s the same issue

[@87SSBOI]

Thanks...hope u get it figured out...that AFM/DOD is a MF

[@BLWTV]

I am having exact same issue . Wondering if that is the issue . When I hit the gas it makes a clanking noise

[@87SSBOI]

Yep and thru the shift points all out of wack too...

[@BLWTV]

@@87SSBOI yeah shifting weird like into reverse . Puttering but not in idle

[@87SSBOI]

@@BLWTV bingo...that's what mine was doing and it was the collapsed lifter

[@barrascanadareynaga4588]

ey bery good job my friend and , you are right those vehicles are our babies ,, I love mine also ,I can understand you 100/100 god job on your Tahoe I'm thinking if I'll try to fixes by myself or wait for the mechanic hi sai wait a week 🙄🙄🤷🤷 so.....

[@brianharrington5176]

How long did it take to send the computer out and get it back?

[@87SSBOI]

About 2 weeks from sending it to receiving it back

[@dawitrezene9162]

Am about to do mine Chevy suburban 5.3 wish me luck

[@87SSBOI]

You got it!!! 🫡

[@dawitrezene9162]

@@87SSBOI thank you I will update on the comments when am done or if am done 😂

[@paquesepas6696]

​@@dawitrezene9162update?

[@edgaralvarado8807]

I got the same problem did you just torque the lifter or did you replace them all?

[@87SSBOI]

Didn’t replace any…just released the one that was collapsed

[@CHIRAQSAVAG3]

Great job bro , but what size engine was this not sure I missed it bro

[@87SSBOI]

Thanks 5.3

[@d3adf3ar5]

5.3l v8

[@dijonbunton1106]

What happens if you don’t get the computer tune after the delete

[@87SSBOI]

It could collapse again on startup or shortly after

[@Pibs2525]

when you worked on the lifter you said that you had to torque it? what was the torque spec and what did you actually tightened? thanks

[@87SSBOI]

I didn't have to torque the lifter...I had to release it with a hammer and small metal/steel rod that fits in the hole

[@Pibs2525]

@@87SSBOI gotcha

[@Pibs2525]

@@87SSBOI one last question, will deleting the afm/dod cause you to no pass a smog check?

[@87SSBOI]

@@Pibs2525 Have no idea...I don't have smog test in my state...my thought is that it shouldn't have an effect on it tho because not all cars have AFM/DOD

[@Pibs2525]

@@87SSBOI I was able to unstuck my lifter with the tool and now I need to do the vlom modification and delete the dod/afm from the computer. Did you remove the dod from the computer? And if so does that mess with your transmission or VVT?

[@alvinrobinson6998]

What is the piece of rod you tapped to loosen the lifter?

[@87SSBOI]

Just a piece of rod I had lying around that I got from Home Depot…don’t know the name of it

[@jorgefrayle5496]

I have the same issue on mine just wondering was your truck turning off?and the smell of fuel is strong on mines

[@87SSBOI]

No it wasn't turning off nor smelling fuel..it was just shaking and the tranny was shifting hard

[@Clohehopewillis]

I have a lifter tick and all the symptoms of this video ....1st thing 1st...my fuel pump was replaced...it went out on me at a light... and I replaced my fuel injectors and added Lucas injector cleaner 2(bottles) and filled up on Chevron Techron 93...it was like night and day ... Now I'm about to change all my sparks and wires since I'm told the bad injectors (which were stupid dirty and clogged) could have messed with my plugs (coils/wires) which were also replaced... My only thing is I have a Non DOD 6.2 Denali, my valley is Flat No Ridges... so would my lifter still get stuck? Its definitely tapping?...I guess it wouldn't hurt to try? I would love to clean it up and replace my sending unit and sensor as well.

[@playamade8000]

I'm here because i had same code cylinder 7 misfire. Changed plug,wire,coil,injector. Ended up being a stuck lifter. Doing afm/dod delete now... Exact symptoms shaking. Especially when coming up to a stop light. Transmission shifting hard sometimes for some reason.

[@87SSBOI]

Yup all the exact same symptoms...got it running strong now tho...this repair worked great and saved me a lot of money...I ended up totaling the Tahoe but I kept the drivetrain...pulled engine apart for Stage 2 cam upgrade...everything was still intact...putting it in my 86 C10

[@87SSBOI]

Thanks for watching!!

[@joetrevino4135]

I’m bout to do this dealership try charging me 6900 I said naw let me come get my hoe

[@lisamartin5645]

So what was the real issue ?

[@87SSBOI]

It's in the video, title and description