I recently did the VLOM delete on my 2015 6.2L direct injected Corvette with only 28k miles on it after #6 exhaust lifter stuck on the highway at 70 mph. I changed out 4 AFM lifters on the passenger side. During the VLOM delete I had to cut the slot in the aluminum sleeve you include with the release tool. I also had read your emergency UTube post about the oiling hole for the high pressure injector pump. So I drilled the small hole in the sleeve that faces the solenoid hole and checked it with compressed air. BTW, I get about 40 psi at idle when cold at about 50F on startup. At 200F water temp I get about 30 psi at idle. Also did the gasket cut mod where they seal to the oil towers. You can’t remove the ECM on the C7 Corvette to reprogram it and turn off AFM, so I had to purchase HP Tuners which needed 4 credits so that cost me $600. The car runs great now. BTW, I also had a bent pushrod at that bad lifter location and replaced it with new stock one. Also purchased complete chrome moly set of aftermarket pushrods that I intend to swap in when I get a chance.

First of all.. thank you so much. My truck i just bought 3 months ago and this lifter bs happens within 2000 miles of owning it. It doesnt even have 110,000. Crazy but im glad im found your videos and youve explained everything very well. I just bought your vlom plug last week and didnt all the labor. Replaced all the lifters vlom plug and cut the gasket of oiling towers. And of course all new head bolts and all the other gasket and stuff. Actually my first time doing this and it sounds/ runs great. I just finsih and havent driven it yet but i just had to tell you and everyone. Youve saved me alot of money. Thank you so much!

I will contest to his methods! I used his videos years ago and have had absolutely zero issues. Now I didn't follow his videos exactly and made my own plug. But his videos ended up saving me thousands.

I’m doing mine today on 2015 silverado and my plug went in just fine thanks for the advice and support. Really appreciate the detailed explanations. Now just need to get this lifter out lol

2015 Tahoe 5.3 PPV police package This might be useful info for others. Got P0300 error. Cyl 1 and 4 repeated misfires. Oil pressure good (39psi). Thought it was ignition related. Replaced plugs, coils, and wires (they were due anyways). Misfires Still there. It would misfire at around 1200-1700 and bog/struggle. Multiple gears. Was pretty certain it was stuck lifters so bought your plug and tool, sent my ECM for tune. Took vlom out and Valve covers. Discovered that all lifters were good. So, no lifters were stuck. Examined the vlom and had signs of leakage. Plugged it up, no leak. Put everything back together. Running fine so far. No more misfires. Im thinking the leak was enough to cause unintended AFM/DOD activation on 1 & 4 cylinders. Was happy I didnt have to fix it with a hammer 😄

I've done numerous afm deletes on the non direct injection units but only done one on the newer direct injection models. I love the trick you came up with to "un stick" a lifter. I use an old Oldsmobile pushrod cut at the correct angle with the help of a slight burst from a air hammer. the vibrations seem to do better than hammer blows. I also use small spring type hose clamps with the ears ground off smooth to block the oil hole to the solenoids along with the gasket snip. Steve's GM reprogramming in Michigan does all my ECM deletes for me. Extra $50 bucke for him to delete the DI units tho.

Awesome video as always. Thank you for the VLOM plate test procedure. That's something to put in the tool box.

I'm currently at 7 months of trying to fix my truck. Learning by myself. Had the motor apart 3 times now. $2500 later and still broken. Wish you were around. Next is a lifter replacement. I wish it was all covered but it's not as you know. My truck is a 2014 chevy with the L83 in it. Only 165k and the lifter got me.

Lifter cost me $3500 had them replaced got the afm disabler u should open a shop in Florida u'd make some good money southwest FL

Great video thanks for you hard work and info👍👍👍

Great news 👍 thanks for sharing. ✌ 🇺🇲 GOD bless America 🇺🇲

I like the vids great work btw why not tap and plug the bottom side and relocate the sensor. They offer a kit to relocate the sensor to the oil cooler mounting area. ?? If this was done first and Afm turned off would the lifters still fail???

Do you have video on how to cut the gasket on the Lt vlom and can you buy a new gasket for it to go around the outside?

The solenoids are leaking because the manifold has to be installed on the block for the fiber plate to seal. A new one will do the same.

I imagine the pin hole is so the unit doesn’t get air locked rather than for oiling the high pressure fuel pump lifter. Under normal conditions, oil will be sent to the VLOM to deactivate cylinders and the air has to be able to escape so oil can enter the passage ways. I can’t imagine it being related to the HPFP. But, I could be wrong.

I really appreciate you sharing your in depth knowledge and experiences with us, should I be worried about my 07 denali 6.2 vvt system, it does not have afm, but now Im thinking about the camshaft design on these and how it can damage #2 bearing, At idle I have about 18 psi, while diving, I have 40 psi. What do you think thanks!!!!

Thanks

I have a 2019 with a code #307 my truck is a 2019 chevrolet silverado LD it has the vlom in it and right now i havethe head off and at first i pulled the vale cover and #7 rockerarm is not moveing and so i pulled the head and took out the AFM lifters and they are working by putting air on them what could be the issue please help

Why can you just add the sleeve to block oil pressure that way there is no need to remove the valley cover?

I placed this order and received the VLOM plug for my '15 silverado 5.3LT. I've already replaced the VLOM and just now realized that in your installation video you cut the gaskets. This is the same VLOM that youy're holding in your hand in this video. I have the oil towers plugged. I will have the AFM tuned out before operating. Must the gaskets be cut before installing the plug?

Okay I have a 2012 gmc sierra I have not experienced any problems with the AFM DOD. The truck has 137k on it I want to do preventative maintenance. I am thinking I should do a full AFM DOD delete. I would like to talk with someone over the phone to figure out everything I need to do this job on my truck.

My boss had a regular lifter fail on his 2016 silverado destroyed his cam

If you put the blocks in all the towers all you have to do then is block off the filter I guess that's what I'm asking

Need vlom plug for a 2014 Silverado

I have an 08 Tahoe. I replaced #4 Intake lifter 2 times for failing on start up. I have also replaced the VLOM with a Dorman part. The same lifter has failed again within 200 miles. You commented that oil pressure is the cause of most lifter failures. I'm really not understanding if oil pressure is the cause, the VLOM solenoid leaking is a possible cause, which has been replaced, what in your opinion is the root cause? Thanks in advance for any assistance!

Quick question, I have a 2009 5.3 with the hardware for afm but it does activate it never has. To my understanding my year is one that doesn’t have the computer for it but it does have the hardware. Will I have to do the tune after I do your vlom mod?

Was curious if you were a lift her unstick method works on the l86 engines seem to have a collapsed lifter and cylinder 6 every time I put a new push rod it just bends even though I have AFM deleted

Is the vlom modification needed when the plugs are put in the block ?

your videos are great thank you very much. They’ve been very helpful to me. I have one question. I have a 2010 LC nine. I sourced the valley plate without the vlom. I see you cut the gaskets / vlom mod. everybody online is plugging those holes in the block…but you seem to leave them open. I understand how the system works from your videos. I’m just putting my engine back together and wondering if I can leave them open. I think I know the answer but just asking. i will be using a dod disabler.

Im in the process of replacing all lifters now on my 2014 sierra. I guess i should do this?

Will this vlom mod work on my 2016 6.2l Cadillac Escalade and do you have a link to order the correct part for the mod . Currently sitting at a dealer that says vlom’s are on national back order . From what they told me it’s not creating enough oil pressure so doing this would solve my problem ? I’m between a rock and a hard spot and could really use some help . Thank you

How do I get a plug to delete my vlom it only has one step. It’s for a 07 5.3 suburban lt

Did you happen to catch what his oil psi was prior? AFM is off and wonder if mine leaks. Shows about 22 psi hot idle in my 15. Could of swore it was was closer to 30 psi not long ago.

Anyone have the issue of the valve manifold bolts that keep spinning after tightening like they've been stripped?? And the best solution?? I tightened them per the Hanes manual to 18 ft lbs

Why do you not recommend the Range plug in device, and will it cause more damage...Thanks

2015 turn it down a little,1 step down

Help help help…..I removed the gasket material in valley pan and did not have the plug to block oil passage…would that make my truck smoke really bad like it is…????please help..because I mean the oil has to still go somewhere although I removed gasket material like u did..???

How much do you charge to fix the sticking lifter and are you anywhere near ks

Just found you recently and I am hoping that you are still paying attention to comments. 2015 GMC 5.3 and the garage said it was either a sheared off lifter or cam lobe. They said they do an engine swap when this happens, which makes sense to me. But if it is JUST a stuck lifter (here's hoping), that is infinitely cheaper! I am thinking they just don't want to do this, unaware, or don't want the liability (I am in Maine and no shops have signed up to do this work yet). I am taking the truck back and bought the release tool today. But, is it true that keeping these engines in "manual" of the 6 speed transmissions keeps the VLOM system from activating? If so, can't I just run it like that INSTEAD of VLOM mod or delete?

I need a vlom plug for 07 Tahoe where ?