If I were to put a 2006 5.3L in a 2007 Avalanche and buy the unit to plug into my OBD2 port would it work? When you drain the oil at three to four thousand miles its still clean. This is in response to pretty much everyone. a little burning oil is a minor thing, my main concern is avoiding a multi-thousand dollar repair needed to the motor. CAM motion says no just have to disable the AFM and VVT with a stock tune as the camshaft is not an aggressive camshaft but a drop in. I just bought a 2018 Silverado. Jasper makes aGM engine that deletes AFM & will warranty the engine to a 100,000 miles parts & labor . Dale, I have a 08 Tahoe thats doing the same thing.Any info you have on this would be appreciated, [] Do they have a downside? There is no way cylinder deactivation and the resulting temperate decrease, with sudden piston heat expansion when all cylinders are engaged, can't have undo wear and tear on the rings, valves, piston and bore. Oil 0w or 5w -20 I did a delete on an 07 avalanche and no have no power, any thoughts on what might be going on? Hello Brian, I just purchased a 2018 Silverado with a 5.3 AFM engine, I have 200 km on it. Im servicing a 2011 Chevrolet 5.3 with AFM. At this state, a disabler would probably do what you need it to do. Loved the looks and interior and thought a I got a great deal at $6k even. Replacing engine due to issues caused by AFM. The system uses solenoids to deliver oil pressure to control. My local mechanic suggested whatever I buy with an AFM he will send off the ECU to have the AFM flashed out. I had privilege to work on some of that garbage they never did work . While it does still use the GM Active Fuel Management cylinder deactivation technology that caused a plethora of issues on the gen-four Vortec 5300 engines, it seems that GM has solved the issues related to excessive oil consumption. December 20, 2021 A GM lifter recall should allegedly be ordered for Buick, Cadillac, Chevrolet and GMC vehicles equipped with 5.3L, 6.0L or 6.2L V8 engines. I could just transfer over the AFM lifter cover, but it is really nasty on the bottom side & I do not want to risk damaging this replacement engine if it is loaded with debris from the lifter & camshaft failure. There are 5.3 cylinder deactivation problems that can occur. I had one fail and it chattered the cam to the point that I had to Install a new cam. There is a chance the cam lobe was stressed and started to deteriorate. A new class-action lawsuit has been filed against General Motors over alleged issues with its Generation IV 5.3L Vortec V8 engines. Now it appears GM and their handlers want to push the electric market with throw away junk that is mechanically weak . If thats the case, Summit Racing has dedicated truck cams that will increase power through the rangebottom to topbut the meat of it is in the mid-range where your engine spends the most time. According to CarComplaints.com, several drivers have had excessive oil consumption issues for a while from 2007 to 2011. I got the AMF disabler anyway and so far so good. She started to have the lifter problem again after 60,000 miles more. This reduces expense when you build it [], [] intake, and a cable-driven throttle body, plus Im also installing Trick Flows VVT and AFM delete kits. With the AFM tuned off, it shouldnt be trying to switch over to four cylinder mode. Its a simple and effective way to turn off the AFM system and provides the added bonus of improving exhaust sound. A lot more info with the ongoing GM 5.3l AFM engine issues on Cargurus. If the lifter actually fails so that the mechanism wont release, it wont work. Carbon Build-Up in the Intake Ports. Took the heads off again. Perform a Cylinder Deactivation (Active Fuel Management) System Compression Test. I guess I might have to call a dealership or GM to get a definite answer on this one. We did take it apart to check for metal possibly being trapped inside, it looked like brand new. The wife however found this deal on an Envoy Denali . Hello! Most of the complaints show up in the 2009 to 2011 model years. Yes thats true. [] swaps come with an extra step or two thanks to the Generals fuel efficiency efforts (VVT and AFM). Have an intake and Borla exhaust. I call it active obama fuel management .A scam . Some guys have been able to use a tool through the top with the cover off to get it to release. Im curious as to how much tran fluid you put in? Excess oil will be pushed out of the pressure relief valve into the oil pan. Really could use some pointers. Here are a few of the issues that you'll want to keep on your radar if you drive a 2017 Chevy or GMC vehicle with a 5.3L engine in it. The GM 2.7-liter L3B Turbo four-cylinder engine for Chevy Silverado and GMC Sierra pickups is meant to change minds about power and torque in a small package. Todays computers are faster so it does work. This is what I keep telling people. .That was a year ago and now I have a collapsed lifter and the most inexpensive repair $2200.00 for a partial lifter replacement. The LZ1 was upgraded with AFM and []. Cylinders two, three, and eight are all similar in cylinder deactivation. Since the tranny oil worked, you should now change the oil, right? I have been assuming this is just a slow to pump-up lifter or lifters. Hello Mike, if you dont have any obvious signs like check engine lights etc., there are couple different possibilities. My fear now is not will it happen but when! I havent has any lifter or cam issues. No other truck my ass .lol my 99 silverado 1500 with the junk LR4 4.8l and 320k miles 9n itgets 21mpg all day long with 93 octane gas in it. With the nipple, or without? But the problem at that time was the computer technology. Most will want to get rid of the AFM immediately. There are two ways to disable or delete Active Fuel Management on your GM or Chevy Gen IV LS or LS-based Vortec engineone is to install an AFM Disabler, and the second is to install an AFM Delete Kit. Took it to the dealer and was told I had a collapsed lifter. I had purchased an extended warranty when I bought the truck new. But it also restricts passages that the oil runs through. If buying a tuner/chip which works best for that truck/engine? All I can say is they now try this again and they are still having trouble..when will they ever leave well enough alone. There are so many moving components in an engine these days as opposed to the past. It was the first Gen. IV LS truck engine and offered Active Fuel Management (AFM). Stopped at nearest gas station and found I was a quart low on oiladded oil and lights eventually went off and luckily we made it the 5 hour drive home. Regardless of the AFM solenoid being commanded on or off. [] For more on that, read:How to Delete or Disable Active Fuel Management (AFM) on GM Engines. Hi Brian please help, yesterday after ice fishing was climbing a hill back home and check engine light flashed. Hi Grant is that disabler still working for you ? Cylinder misfires (most common sign) Rough idling, poor acceleration, loss of power Check engine light with engine misfire codes Air-to-fuel ratios are either running rich or lean The easiest way to tell that you have an injector problem is through the check engine light and engine codes for misfires. The Cylinder Deactivation system, known as the Active Fuel Management system by GM, shuts off some of the cylinders when extra power is not needed which improves fuel economy. I had #4 lifter stick and now i am looking at replacing the engine with a non-dod version. Easier said than done. I wouldnt trade my 2000 Silverado, 5.3 liter that has constantly gotten 20 mpg since I bought it 15 years ago, for a dozen of these new $50,000 POS. Look for the following: TheAFMcover is called the Lifter Oil Manifold Assembly (LOMA). You were lucky that it worked. Most of all, my concern is reliability. The oil-pressure controlled system that operates the special lifters is VERY prone to failure, if the oil is not changed on time, OR if the wrong oil is used. I have only put about 600 miles on it and noticed that the oil was a bit low and am hoping that it was that way when I picked it up. I was told that before I start the vehicle up I will need to have the AFM and VVT disabled in the ECU but that would require a custom tune from a tuner as the ECU cannot just be told that the AFM and the VVT is gone. You could also have tried that if the trans oil didnt work. Chevrolet 5.3 Engine Issues and Recommendations yep, you are 100% Right, I called a local saab shop and they filled me in, in 2005 the trailblazer and clones have DOD (displacement on demand), My next issue is getting extra ignition keys on the cheap. There are two ways to disable or delete Active Fuel Management on your GM or Chevy Gen IV LS or LS-based Vortec engineone is to install an AFM Disabler, and the second is to install an AFM Delete Kit. Just shut AFM off. You will get codes thrown if the afm is physically removed without telling the ECM you did so. The market for nonhybrid gasoline-powered vehicles is expected to fall by 20 percent during that time, but with tech like smarter cylinder deactivationin these upcoming GM V-8 trucks, for . I have a 2007 Gmc Envoy Denali with LH6 cant find a good LH6 engine but I found a 2011 LC9 engine w 52000 miles will everything plug up or what am I getting into? The problem I am facing is that I want to drive this vehicle for at lease another 77K and do not want to drive my vehicle with this AFM issue. Number 7 cylinder lifters stops moving when truck starts. The older truck gets 19 mpg the newer truck with fuel management gets 14. I traded in a 2004 4.8 L with 256000KM on it that ran like a clock and never gave me a problem. If someone didnt want to spend gas buy a Toyota. So for all of you that continue to complain about how bad these things are. Just pulled it down in the garage there was no other damage , luckily. This is my project car and will be my drive (about 5000 miles a year). Run it and let it soak overnight. Thank you. They shift cam lobes by sliding the cam, never actually shutting down the value but riding a different lube! [], [] as the LS engine familys hybrid engine in trucks and SUVs. Vortec 5300s featuring LH6 and LC9 engines are prone to failing spark plugs due to carbon build-up. My concern is if I leave the non-AFM lifter cover in place & have nothing to plug the 5 pin AFM solenoid connector into, will I get a MIL? 1. I have had some say that it is the valves and others say that it is the cats plugged. I cant really tell from driving. Absolutely agree, but we all know GM cant afford to recall them all & definitely wont, gettin a Toyota, but first will go to GM dealer and ask to see a truck without AFM & when they say they dont have it Ill say See ya, I have an appointment with the Toyota dealer! Always had GMs never anything else till now. This happened on a camping trip with my kids last friday night. It works . So I researched and got an AFM disabler. Just had my afm lifter fail had to drive 500 more miles home on 7 cylinders in my 6.0 lt chev. Are there errors or something only the dealer can clear? Why doesnt anyone make an aftermarket set of replacement AFM lifters that are the right length but DO NOT COLLPASE! Once the lifter has been damaged, the cam is probably also damaged. Then had to drive the truck back to Tampa from Cheifland Fl. https://www.amazon.com/gp/product/B00BR1R8N8/ref=ox_sc_act_title_1?smid=A359W9MWR50ZG1&psc=1. Its not GMs choice to use AFM. Having it fixed now, just curious Seems like a problematic design. 4,7 plugs foul runs rough at idle. Perhaps a flaw by design would be a more appropriate description . How do you know if the lifter has failed? I have the towing package on my 13 Tahoe LTZ. Is this due to the AFM being shut off? the extra oil isnt needed. Anyway that horrible experiment was in the late 70s early 80s along with those converted Diesel engines..those like the 8-6-4 nonsense were just terrible failures. Very expensive repair too! Plugs spark fine engine has power at higher RPMs although it is still in Limp mode / stabilitrack message, even after driving it a few times above 60 MPH then clearing errors with handheld programmer. Theyre also notorious for bad cam tower oil leaks. Gary, [] 3 engines didnt have AFM (Active Fuel Management) or VVT (Variable Valve Timing), so you dont have the expense of an AFM or VVT delete []. This video covers the steps youll need to take before upgrading to a larger [], I am installing a complete delete system, just wondering what it will do if dont plug the oil pressure relief valve? I guess they also went to aluminum blocks in 2007, not sure if that has anything to do with this issues thanks for the advice! I just took a long trip and it used 1.5 quarts of oil. That might show up if you cut the filter and looked for debris in the pleats. Right now I have just over 77K miles with no lifter problems Knock on wood I am thinking of the AFM disabler. My Wifes 17 Buick with afm was my attempt to get back to gm. This update also saw the usage of cylinder deactivation technology or Active Fuel Management. Vehicle has been serviced more regular than the manual calls for and the AFM has caused problem after problem with fouled plugs. Replaced all lifters on passenger side as well as pushrods for even wear. Im always sorry to hear when people run into issues like these. . Have an 06 Yukon with 5.3, original engine had bad knock, was told it was lifters so had them replaced. Any problems to watch out for?Did you replace the VLOM? We have purchased a used low mileage 6.2L as that is all the extended warranty company would pay for. Correct me if Im wrong- If such an item was available couldnt you then just replace the lifters in the 4 AFM cylinders and then just run a disabler or have your ECM/PCM reprogrammed to have AFM disabled permanently.