Executive Director Vs Managing Director Morgan Stanley, Articles G

The Range AFM/DFM Disabler allows your V6 or V8 GM vehicle to run in full cylinder mode at all times, preventing the Active and Dynamic Fuel Management systems from dropping cylinders. Take a look at what bmw did in its R1250 bike. AFM - active fuel management strategy which deactivates the lifters on specific . On June 4th you stated The vehicles affected were 2007 to Feb. 2011 AFM equipped engines (Aluminum or Iron block-L94, LZ1, L99, LC9, LH6, L76, LFA, LMG, and LY5) I am looking at purchasing a 2012 Tahoe with the LMG per the build sheet. Toyotas 5.7 is one of the biggest gas guzzlers among half-ton trucks. 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? It is a bad deal for sure.ive fixed a few best thing u can do is delete it in buy kit.no sense in fixing a flawed problem with the same flawed parts. I pulled the head off, replaced the lifter and put the gadget in the ODBII for about $400 total. Welcome to socialism folks . Delete the AFM, buy a tuner/chip, take it to a performance place and get an actual tune done that fixes it, replace the AFM lifters with non AFM type, change other engine components with thisetc..etc..etc??? Been driving with no issues but I did notice that the AFM disabler removed a P0449 code (Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction) dont know if this is a coincidence or they are related??? [] For more information on AFM, including a comprehensive guide on how to completely remove it from your engine, check out this article. 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. It depends on the failure mode of the lifter however, certainly worth a try. I quites down to nothing after running for about a minute. Also replaced push rods rocker arms and rocker plate guide because if wore push rod and crack in rocker arm. I have the towing package on my 13 Tahoe LTZ. Cylinders two, three, and eight are all similar in cylinder deactivation. Ayush Srivastava The LZ1 was upgraded with AFM and []. We had one for a company car in 82 and it never did run right from new but at least it didnt destroy itself. 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. I had one fail and it chattered the cam to the point that I had to Install a new cam. They dont so any better than domestics on mpgs. For a primer [], [] cathedral port cylinder heads and used Active Fuel Management (AFM). bought at Brian Tooley Racing ! Regards, 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. Vehicle has been serviced more regular than the manual calls for and the AFM has caused problem after problem with fouled plugs. Your email address will not be published. Unfortunately, I found out about the lifters too late. [] for performance, LS9 engines didnt use Active Fuel Management (AFM), Variable Valve Timing (VVT), or Flex Fuel (E-85) technology. It has has 9000 miles and no lifter or other issues or codes so far. We figured we already had the intake manifold off to install the engine, why run the risk of MIL only to have to removed the intake manifold again without being paid. In 2010, GM added a deflector (p/n) NAL-12639759 to redirect in into the pan. He used seafoam and changed to synthetic oil. It has plenty of oil pressure and I put all new lifters in it. Did Obama make them do this? Only issue might be the oil consumption due to pressure run off and spraying of oil in crankcase? My 2012 Silverado 5.3L just did the same thing as your Tahoe Brian. NOTE: Some parts are not legal for use in California or other states with similar laws/regulations. I only have ~ 5k miles on it, and it hasnt been driven hard, so Im assuming the lifters are fine. Change your oil. Run it and let it soak overnight. Where can I buy a bolt to replace this relief valve ?? The detergent. Everything was fine for two weeks, ow customer complains s it same noise it made as before. I saw two Summit Racing kits, with different valley coverswhich one do I need for my Yukon? Pulled right valve cover an rockers on syl 6 dont move. I wii be using this truck to haul a camper for full time RV living and am thinking of a tuner to shut off AFM and maximize performance and economy. The engine will operate on 8cylinders, or V8mode, during engine starting, engine idling, and medium to heavy throttle applications. Perhaps a flaw by design would be a more appropriate description . Weve written some articles on the various Vortec engine upgrade paths, such as this one on LQ4 and LQ9it discusses some of the better options for choosing a cam intended for use in a truck. []. Getting ready to diy for $450. 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. My dad ended up running seafoam through it and some transmission fluid, changed the oil pressure sensor which I definitely think was bad and also cleaned out the little screen and he said it was so full of junk and metal scraps. I would say maybe 5% of my customers keep up on their oil changes. Only running on drivers side cylinders. We recently purchased an 08 Suburban and noticed some shuddering around crusing speeds, usually 45-55mph and highway speeds around 75mph. Brian, we have a 2007 Yukon Denali in our shop with a 6.2L v-8 that has suffered a lifter failure with camshaft damage. The exhaust valve remains open during the intake stroke and closes just before BDC. They may be able to find some of those missing ponies. If you swapped in a LS9 cam, you will find it makes good power at the very top, but its actually down from 5,000 rpm and lower where the truck spends the majority of its time. Have misfire code and engine has what I would call a surge while driving. do you fill to capacity anyways???? I would rather stay a V8 full time than deal with AFM issues in the future. As GM issued 13 updatesnone of which workeddealers disabled the system on their customers' cars, leaving them permanently in V-8 mode. When you eliminate the AFM system, the extra oil is no longer needed. (Bought car 1 day before lifter died!) It does seem that when they start goingthey go quickly. This replacement engine has the same camshaft sensor plug plug, 5 wire like the AFM would use, instead of the 3 wire. I recently bought a low mileage 2013 Silverado and the lifters collapsed. Still have no power. I speak from some experience. It also mentions a valve cover replacement with revised PCV valve design. You will get codes thrown if the afm is physically removed without telling the ECM you did so. I have successfully used a gadget that plugs into the ODBII. My ignition lock cylinder is completely stuck in lock position with the steering wheel locked as well. Cylinder deactivation--branded Active Fuel Management by GM--shuts off some cylinders when extra power isn't needed, to improve fuel economy. You can unplug the sensor on the vacuum booster and it will fool the computer into thinking there is a high demand on the engine and shut down the AFM system but you will have a Check engine light in your face for doing so . Diablo says yes but they do not provide tunes. Please report back if you have any issues, but I think you are in good shape. GM uses 3 different styles all are engine specific. Should I wait until the warranty runs out, or will that be too late to stop possible damage? Dont want to make a move on a new truck or jump to a 2500 yet. Why this happens is a more . My question is: do I install the electronic disabler on the new engine to avoid future issues? GM offers the following diagnostic steps in determining if this is the problem. Disable the afm. I bought a 2022 GMC Sierra 1500 with 5.3L, X31 off road package a year ago. Not sure what else it can be. The Definitive Guide to LS Engine Specs and LS Engine Upgrades, LS3 Engine Upgrade Guide: Expert Advice for LS3 Mods to Maximize Performance - OnAllCylinders, LS Engine Bore & Stroke Chart - OnAllCylinders, http://www.autoserviceprofessional.com/article/91652/ticking-gm-v8-lifters-and-dtc, Range Active Fuel Management Disable Device, LS9 6.2L Engine Upgrade Guide: Expert Advice for LS9 Mods to Maximize Performance - OnAllCylinders, LMG 5.3L Engine Upgrade Guide: Expert Advice for LMG Mods to Maximize Performance - OnAllCylinders, L59 5.3L Engine Upgrade Guide: Expert Advice for L59 Mods to Maximize Performance - OnAllCylinders, L76 Car Engine Upgrade Guide: Expert Advice for L76 Car Engine Mods to Maximize Performance - OnAllCylinders, LH8 5.3L Engine Upgrade Guide: Expert Advice for L20 Engine Mods to Maximize Performance - OnAllCylinders, LH6 5.3L Engine Upgrade Guide: Expert Advice for LH6 Engine Mods to Maximize Performance - OnAllCylinders, LFA 6.0L Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More - OnAllCylinders, LFA 6.0L Engine Upgrade Guide: Expert Advice for LFA Engine Mods to Maximize Performance - OnAllCylinders, LZ1 6.0L Engine Upgrade Guide: Expert Advice for LZ1 Engine Mods to Maximize Performance - OnAllCylinders, What the New LT2 Mid-Engine Corvette Reveals About the Future of GM LT Engines, All the Torques: How Summit Pro LS Truck Camshafts Help Truck Owners Maximize Performance, LMF 5.3L Engine Upgrade Guide: Expert Advice for LMF Mods to Maximize Performance - OnAllCylinders, L98 6.0L Engine Upgrade Guide: Expert Advice for L98 Mods to Maximize Performance, LQ4/LQ9 Engine Upgrade Guide: Expert Advice for LQ4 & LQ9 Mods to Maximize Performance - OnAllCylinders, Range AFM Disabler Reviews | Range Technology AFM Disabler 2019, LS3 Engine Upgrade Guide: Expert Advice for LS3 Mods to Maximize Performance, LM7 5.3L Engine Upgrade Guide: Expert Advice for LM7 Mods to Maximize Performance, LS4 Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More, L76 6.0L Car Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More, L96 6.0L Engine Upgrade Guide: Expert Advice for L96 Mods to Maximize Performance, LC9 5.3L Engine Upgrade Guide: Expert Advice for LC9 Mods to Maximize Performance, LH6 5.3L Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More, LZ1 6.0L Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More, Chevy 4.3L Vortec Common Engine Problems - Vortec 4300 V6, https://www.onallcylinders.com/2017/11/30/how-to-delete-or-disable-active-fuel-management-afm-on-gm-…, The 5 Most Common Chevy EcoTec3 5.3L Engine Problems, Chevy 6.0L Vortec Engine Problems - Common Vortec 6000 Problems, The 4 Most Common Chevy EcoTec3 6.2L Engine Problems, Gen 3 vs. Gen 4 LS Engines: How to ID Them (Video), Ask Away with Jeff Smith: Upgrades to GM LS 6.0L 4x4, LM4 5.3L Engine Upgrade Guide: Expert Advice for LM4 Mods to Maximize Performance, L33 5.3L Engine Upgrade Guide: Expert Advice for L33 Mods to Maximize Performance, Mailbag: Choosing an Engine Management System for an LS-Swapped '82 Olds Cutlass. Now I know why there wa such a push to get older ,less efficient vehicles off the roads. The cost of just rings $4,000.00, [] Disable your Chevy AFM: https://www.onallcylinders.com/2017/11/30/how-to-delete-or-disable-active-fuel-management-afm-on-gm-… [], [] like front timing cover, knock sensor location, cylinder head style (cathedral ports), AFM (Active Fuel Management), and other components are key clues to which engine family youre looking []. We were getting a code that the cam position sensor was not functioning properly. Hi Brian, Im curious as to how much tran fluid you put in? It looks as if Ill need to start saving for a complete AFM delete kit with a new cam. Hello Mike, if you dont have any obvious signs like check engine lights etc., there are couple different possibilities. The biggest problem is nobody changes their oil on time. im going to plug in a dissabler when im done to keep it V8 mode all the time. The dealer in Rockhill, SC when asked only said they had not had a problem. Then changed the oil. The wife however found this deal on an Envoy Denali . No problems with any to this point. GM switched over to the 4100 v-8 in 1982. Double digit MPGs in my 98 K1500 would be a dream lmao. Its a simple and effective way to turn off the AFM system and provides the added bonus of improving exhaust sound. 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. Pod. When they are locked into position, they wont wear further and cause issues down the road. Given that, would you recommend buying one of the OBD-II devices to disable AFM? My 2013 GMC Yukon XL 6.2L is currently having a failed lifer replaced. I am not in a position to have a new cam and lifters installed but Im also not in a position to not having a running truck! With 40000 Brian, I have been reading your article about the AFM. I always have done my oil changes on time, not sure about the people who owned it before me though. Install the AFM disabler now or wait until my warranty just about to expire to get this AFM issue resolved? The Tundra fares better but the frame has the rigidity of wet spaghetti and the 5.7 has had problems with VVT solenoids and the plastic timing chain tensioners. Cylinder deactivation works to save fuel, but it may not be for the reasons you think. I have a 2011 Chevy Tahoe with the 5.3 Gen 4 LS (VIN Code 0) and I bought a CAM motion DOD/AFM delete kit, 3 bolt drop in CAM Motion stage 2 camshaft, VVT delete kit and finally a Diablo Predator 2 Premium for GM programmer. Just one or two. Learn how your comment data is processed. From what I am reading this would eliminate the possibility of failure, prevent false check engine lights and continue to make the appropriate power??? One alternative is to swap in one of the larger 6.0 non-AFM truck cams. Just recently, GM announced a temporary closure. I also notice that it doesnt go into V4 when it is cold. With the AFM tuned off, it shouldnt be trying to switch over to four cylinder mode. . This should be added to your earlier model if you experience oil consumption. I want to put a AFM disabler in it what all do I need to have done. Was a disaster then but a profitable disaster. There are so many moving components in an engine these days as opposed to the past. Most will want to get rid of the AFM immediately and VVT isnt for []. Loved the looks and interior and thought a I got a great deal at $6k even. I am considering the same. the extra oil isnt needed. When you drain the oil at three to four thousand miles its still clean. Replacing engine due to issues caused by AFM. [], [] LS Tech: How to Delete VVT or DisableAFM []. The LH6 in 2005-06 was a little different than the one used in 2007-09, but both had AFM. If buying a tuner/chip which works best for that truck/engine? I have 4 GMCs in my driveway right now only one with AFM its always popping DTCs, 06 Yukon (not AFM)never had a light in 12 years! General Motors Active Fuel Management Cylinder Deactivation Technology Active Fuel Management (AFM), otherwise known as Cylinder Deactivation is a General Motors engine technology that. If you installed a performance cam intended for a car, it may be bleeding off some low end compression. Ive only put a straight pipe exhaust, intake, and a boost controller on it. If I put the Range module on, is that all I need to do, both now and long term? Very expensive repair too! Corvette that does employ AFM. Not sure which direction to go from here. Can I (should I) also change to a standard volume oil pump? Did not help. GM should recall every vehicle with this terrible design flaw! 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. So for all of you that continue to complain about how bad these things are. If someone didnt want to spend gas buy a Toyota. 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. A lot of drivers reported losing 2-4 quarts of oil in between oil changes. of cranking pressure because the duration is longer on those cylinders to being with to offset the AFM lifter design. Cylinder deactivation is very effective in reducing fuel and reducing the emissions of harmful gases. Was thinking maybe I could trick the ruck into thinking the engine was not warmed up, however, this might cause some problems for other processes, such as mix ratio and timing. 190k on the motor always ran AMSOIL full synth since new.