I have a 2007 Yukon XL with the 5.3L and am planning to do this as my lifters have failed and it rattles loudly if it starts, and runs limp. This replacement engine has the same camshaft sensor plug plug, 5 wire like the AFM would use, instead of the 3 wire. Ive only put a straight pipe exhaust, intake, and a boost controller on it. Many people find the four-cylinder sound annoying if their vehicle is equipped with a louder aftermarket exhaust. Have not had a problem yet. hi brian when you replace the lifters do you have to change the guides also? If possible, will simply not using VVT provide a powerful,good running engine? My 5.3 is. There are 5.3 cylinder deactivation problems that can occur. There is a note in the TSB that states the bulletin doesnt apply to the LH6 used in the Rainier, Trailblazer, and Envoy due to a different design oil pan and AFM relief valve. Replace the cam or do the delete kit?
GM Active Fuel Management Cylinder Deactivation Technology - GM Authority Better airflow reduces drag on the pistons and the associated pumping losses. This allows the engine to run in V8 mode. As we were installing the sensors prior to installation in the vehicle, we noticed that there was no fitting on the oil pan for the oil level sensor.
GM Making New Trucks Without Cylinder Deactivation Due To Chip - Motor1 But then she passed away from cancer. Engine starts but is throwing a misfire on cyls 4,7. Brian, thank you for the quick response.
What Is Hemi MDS? - MotorTrend 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. There may be an ignition related issue on that cylinder. The most common are fuel pump failure, transfer case sensor failure, fuel injector failure, and carbon build-up. Was a disaster then but a profitable disaster. I would just have the AFM disabled (tuned out) then. I also have 08 Burb, but have different symptoms (high oil consumption, blue exhaust smoke at start, and now a really rough start after sitting overnight). Is there any reaction to the disabler when pulling a boat or trailer? 330-630-0240. I read something the other day which I found to be funny. Heres what you need to know: An AFM Delete Kit is recommended when an AFM lifter fails or when doing performance upgrades.
How to Delete or Disable Active Fuel Management (AFM) Question I have a 2015 Silverado and had a transmission go bad when I had it rebuilt I had the AFM/DOD turned off. Our 2013 yukon with 47k miles just failed. Loved the looks and interior and thought a I got a great deal at $6k even. According to CarComplaints.com, several drivers have had excessive oil consumption issues for a while from 2007 to 2011. Now I know why there wa such a push to get older ,less efficient vehicles off the roads. All New lifters were from AC delco. Brian, I repaired a 2012 GMC Yukon Denali as the AFM lifter on #4 I take failed. Fortunately, the old engine hadnt been shipped back to the remanufacturer. Very confusing stuff out there. When we removed the oil pan from the new block, we noticed a metal shield covering the bottom of the block. Why have you not gotten a reply from Mr Nutter, Buying a Silverado 6.2L. I would. . I have always loved Ford and Chevys , I dont like this Vehicle not one bit, starring shaft has to be lubed or it whines, front A arms has done been replaced, tapping in motor, leaf springs has been lubed, retorqued, put completely new leaf springs back in on the rear , grease all down from rims to body of truck, you have to clean often,console shakes as if milk shakes in console which later they also put rubber bushings in front of coils of shocks ( front end) .You lock it down in 44 it s metal to metal , As of now Im at 32,000 done gone threw all the arbitrator laws depending on how it goes? 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. If I had been able to push the issue and get the time, I would have done the full fix at first without the hassle. I am trying to find out of this is true. []. in your opinion will this work, i really dont see any reason it wouldnt. If buying a tuner/chip which works best for that truck/engine? Just shut AFM off. If I put the Range module on, is that all I need to do, both now and long term? When an engine is contstantly running on oil that is broken down, it not only wheres out components because of no protection. The Oil pressure relief valve deflector added in Oct. of 2010 is small and its part number is NAL-12639759. changed oil , its all working now, but want to disable this sorry system. They should let us the better mileage. Battery was unplugged for a week.. That might show up if you cut the filter and looked for debris in the pleats. The oil pump is high volume, but there are a lot of people that dont change it and rely on the pressure valve to keep the volume manageable. AFM Sucks!!! No problems with any to this point. Would installing the Disabler solve this? I phoned the dealer and gave the VIN number, told it isnt equipped with AFM. I had a 2007 Yukon XL 5.3 with the AFM.
How to Delete or Disable Active Fuel Management (AFM) on GM Engines 5.3-liter Chevy Engine Problems: What Should You Look Out For? Most of the complaints show up in the 2009 to 2011 model years.
Does cylinder deactivation affect engine life? - Quora The engine will operate on 8cylinders, or V8mode, during engine starting, engine idling, and medium to heavy throttle applications. Now I learn about the cylinder deactivation issue and suggestions to add the Range Technology module to deactivate it.
Disable Active Fuel Management - Ricks Free Auto Repair Advice Seems like the AFM disabler device is working for a number of people including myself as the 5.3l AFM engine has inherent design faults. I ordered a electronic disabler for it today.
2019 Chevy, GMC Trucks Get Smarter Cylinder Deactivation - Car and Driver The LZ1 was upgraded with AFM and []. AFMis good for gas mileage and can be 5-7 percent more fuel-efficient under certain conditions. I recently bought a low mileage 2013 Silverado and the lifters collapsed. It will show up as a misfire code in a cylinders 1,4,6, or 7. It uses a M14 x 1.5 thread plug like Dorman 65217. I just did the delete and replaced the cam as well. Below youll see references to the L99 as a result. Now the problems back, I have 180k miles on it now. 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. 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. Thanks for your help. The engine will operate on 8 cylinders in V8 mode during starting, idling, and medium or heavy throttle conditions. I have an 07 Silverado 1500 ltz. My daughters car had about 230,000 miles when she complained of the problem. All eight cylinders are now powering the engine. Should I buy a Diablo AFM disabler to prevent the new block from dropping to 4 cylinder? I went ahead and purchased a Disabler on Amazon, for preventing it happening in the future. thanks brian love the info Im thinking of buying a ford now, I am going to buy a new truck in about a month it would be a Chevy but Dodge has lifter problems so they are out and Chevy has DoD problem.If they come out with Silverado without the DoD then i would buy one.But they arent so i will become a Ford man from now on, Have fun with that Ecobust motor & stretched timing chain . If AFM has been deleted, its common just to use a Dorman drain plug (m14 x 1.5) to remove the pressure relief valve entirely. I am having that done today on my 08 Suburban and its only costing me $225. I have no other engine problems and Id like to fix the issue. How about if they just let us have a manual transmission agains for fuel mileage? 2 15 with 5.3 Sierras both with 100k and As you said, the ECM was never seeing the AFM so I think youre good to go. I have a noise in the engine but it seems to go away when revved up. Thank you for your time. I have a Yukon 116k it now needs its 3rd set of lifters and cam. Hi Brian please help, yesterday after ice fishing was climbing a hill back home and check engine light flashed. A 17 with 5.3. Any truth to that? Now im thinking of buying a disabler asap, am i in the clear to do so without the oil splashing problem? Most of all, my concern is reliability. [], I have a 2012 Silverado Z71 bought new. I have read synthetic isnt good for AFM lifters. This should be added to your earlier model if you experience oil consumption. Does the disabler prevent the engine damage in the first place? Its Chrysler and Ford. We need availability of a replacement engine without the AFM. There are so many more oil passages on engines these days. I did and they diagnosed it as being on Cylinder 3, not one of the cylinders that deactivates. Hello Mike, if you dont have any obvious signs like check engine lights etc., there are couple different possibilities. The materials used in the engine were [], I have a 2018 GMC with the Eassist and AFM Any thoughts or suggestions would be appreciated. I call it active obama fuel management .A scam . This new lawsuit is essentially identical to the previous. Once the failure has occurred, the AFM shut off methods other than that probably wont work. Just recently, GM announced a temporary closure. The engine is running on only four cylinders. The dealer in Rockhill, SC when asked only said they had not had a problem. Having a hard time finding one .. In the mean-time I found that you can keep the engine from going into 4 cyl mode by using the manual shift (if so equipped) and keeping it out of 6th gear.
2014 Chevy, GMC Pickups Recalled For Cylinder-Deactivation Issue .That was a year ago and now I have a collapsed lifter and the most inexpensive repair $2200.00 for a partial lifter replacement. 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. What was happening to the first is slowly (or quickly in your case) happening to the others. [] For more information on AFM, including a comprehensive guide on how to completely remove it from your engine, check out this article. 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. I don know what else would cause the surge, but Id research the misfire code and see which cylinder is problematic. . Have there been improvements in more recent model years employing AFM [2014 or newer]? This system was originally used in early 1980s Cadillacs. The valve itself is part number W0133-2574213. I remember those Other GM vehicles that the consumer tested for GM and paid GM for the honor. However, they are only functional on engines that usedAFM. GM switched over to the 4100 v-8 in 1982. Some guys have been able to use a tool through the top with the cover off to get it to release. The detergent. Would it be fine to go ahead with the AFM Disabler? document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. i just bought a 2018 Silverado with the 5.3 stalled in a certain way a warning wouldn be a bad idea. I called my service station and they told me to get it in ASAP. Toyotas 5.7 is one of the biggest gas guzzlers among half-ton trucks. As a side note, the early ones had a 24x reluctor and plastic chain guide (good) vs. the later ones with 58x and the spring loaded tensioner (not so good). 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).