Have a lifter problem on my 5. Happened once 1yr ago, truck was not used for a week and worked fine when i started it back up. Now the problems back, I have k miles on it now.
Jusy 3 weeks ago I quit driving it because of the lifter, but it worked fine when i started it back up. No clue what to do. The lifter seems to recharge whenever the truck sits for some time. Can you tell me what needs to be done with the VVT? Hello Brian, I just purchased a Silverado with a 5. I traded in a 4. Do you think it would be wise to put a AFM disabler on a brand new truck to avoid engine damage? Should I wait until the warranty runs out, or will that be too late to stop possible damage?
Does the disabler prevent the engine damage in the first place? I love the car so far. Is there any potential down-side to doing this — in other words, might this do more harm than good?
I am wondering the same thing. I just bought a Silverado. It has 8, miles on it. I just took a long trip and it used 1. Will the plug in cause my truck to burn more oil or will it fix the oil consumption issue? Why have you not gotten a reply from Mr Nutter.
Buying a Silverado 6. Friend will send to me from Arizona. Thank you. Pingback: L59 5. Brian, I have been reading your article about the AFM. I had a Yukon XL 5. Traded it with K miles and did not experience any problems. I wear hearing aids, but I thought I heard more engine noises, but after checking the gas cap, the light went out for a week.
It came back on last Wednesday starting with a flash. I called my service station and they told me to get it in ASAP. I did and they diagnosed it as being on Cylinder 3, not one of the cylinders that deactivates. Anyway, after some pushing and pulling I took it to the Dealer who sold it to me.
They took the engine down today found so much damage inside they ordered a new engine from Detroit. My question is: do I install the electronic disabler on the new engine to avoid future issues? I would. I have a Buick Lacrosse super that I am having a hard time finding a tuner or a tune shop that can turn off the afm.
Pingback: LH8 5. Hi Brian please help, yesterday after ice fishing was climbing a hill back home and check engine light flashed. Took it in this morning and mechanic said cylinder 6 misfire, he said the lifter hasnt failed. He used seafoam and changed to synthetic oil. Now im thinking of buying a disabler asap, am i in the clear to do so without the oil splashing problem? I have an 07 Silverado ltz. Seems like the AFM disabler device is working for a number of people including myself as the 5.
My question on a Chevy Tahoe 5. Also replaced push rods rocker arms and rocker plate guide because if wore push rod and crack in rocker arm. Put everything back together proper torque, gakets, valve seals, etc. Fouls those plugs. New plugs and wires. Would installing the Disabler solve this? Are there errors or something only the dealer can clear? Battery was unplugged for a week.. Really could use some pointers. Had similar problems under warranty, no telling what they rigged me up with at the dealer.
I have envoy that runs makes lifter noise then dies in about 30 seconds then I started it one day and it ran with little noise for 5 min started next day and it starts and dies again got heads off was told I could put ls 3 lifters in is that true or is there something else I could do thanks Duane. Both 6 lifters only move when turning engine by hand, if you use the starter they stop moving. Unplugged AFM engine only runs on 4 cylinders 2,3,5 and 8.
Engine oil pressure is fine. Any info you have on this would be appreciated. Pingback: LH6 5. I just got a Silverado extended cab 4X4 with , miles on it.
I have only put about 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 have ordered an ATM disabler and will be putting a can of Textron in the gas at the next fill up.
I am a long time GM fan but after reading how they messed up the 5. I am considering the same. If you scroll back, you will find that it is recommended to change lifters and camshaft and looks some more. I will keep reading and take notes. I would appreciate it if you let me know how you make out.
I just bought a 5 3 miles I was thinking about eliminating the 4-cylinder if I delete it with just the programmer will it hurt my motor? Replacing engine due to issues caused by AFM. Also putting in a new transmission vs. I plan on getting a tuner to disable the AFM. Can I should I also change to a standard volume oil pump?
At least Dodge admitted they had junk transmissions in the early s and picked up sales each. I have a GMC Sierra with the 5. There has been a lifter noise since I bought the truck 1 year ago. I have been assuming this is just a slow to pump-up lifter or lifters. I quites down to nothing after running for about a minute. 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. Most of all, my concern is reliability.
I would appreciate any feedback. Would doing the disabler option once I get it back be the right one? Pingback: LFA 6. Pingback: LZ1 6. This is in response to pretty much everyone. I own a reputable repair shop. I have seen more internal engine failures in the last 5 years or so than I have in the first 15 years in the business.
The biggest problem is nobody changes their oil on time. There are so many moving components in an engine these days as opposed to the past.
Clean oil is crucial. The oil is baked on to every component. But it also restricts passages that the oil runs through.
There are so many more oil passages on engines these days. Unfortunately because of emission standards nowadays, manufacturers cant go back to those style of engines. So for all of you that continue to complain about how bad these things are.
Change your oil. I have a Silverado with a Have not had a problem yet. From what I am reading this would eliminate the possibility of failure, prevent false check engine lights and continue to make the appropriate power??? Only issue might be the oil consumption due to pressure run off and spraying of oil in crankcase? Pingback: LMF 5. All these comments on the 5. I have a GMC with over , miles on it and it runs great! My fear now is not will it happen but when!
I would just have the AFM disabled tuned out then. I know I felt the same way. I did noticed the oil consumption but it was rare that I would have to add oil. I got the AMF disabler anyway and so far so good.
I am confused about the plug in disabler. I recently bought a Silverado 5. It only has about 9k miles on it. I recently took a long trip and it burned 1.
The write up confuses me. Will the plug in deactivater fix the oil consumption or will it cause more consumption? I have an 07 Yukon with k on the engine. I had 4 lifter stick and now i am looking at replacing the engine with a non-dod version. Did gm make a non-dod version of the 5. If so what would the vin code be? If i am successful locating a non-dod vin would i just need to have the ecm reprogrammed?
I have an Suburban 4WD that I am about to replace the motor in. The motor I pulled was a LY5 with about 77k on it. It has AMF. Question is, since my ECM and wiring harness were made before the AMF came about will this motor work properly as a V8 or will I need to replace the lifters, cam, oil sensor, etc as the delete method mentions? I am worrking on a chev Silverado 6. Pingback: L98 6. Only thing I noticed with the oil consumption issue. So I researched and got an AFM disabler.
I already ordered the parts to replace myself and remove the code. Hi my name is noel I am a mobile mechanic and I have a client that was having trouble with the lifters on a gmc yukon Denali 6. Pingback: LM7 5. Pingback: L76 6. Pingback: L96 6. Pingback: LC9 5. I have a Yukon XL with the 5. I saw two Summit Racing kits, with different valley covers…which one do I need for my Yukon? With the nipple, or without? I recently bought a low mileage Silverado and the lifters collapsed.
It is currently at the dealer having a new long block installed under warranty. Pingback: Chevy 4. Pingback: Chevy 6. I have a Silverado Z71 bought new. Vehicle has been serviced more regular than the manual calls for and the AFM has caused problem after problem with fouled plugs.
General motors sent out a service bulletins to their dealers however, all dealers will not tell you about the bulletin. The dealer in Rockhill, SC when asked only said they had not had a problem. I contacted service manager in Gastonia, NC and he was kind enough to tell me the whole history of the problem..
We need availability of a replacement engine without the AFM. These trucks cost too much to have a terrible product. Toyota will be my next truck unless GM owns up and makes wright with consumers. After all we bailed them out of bankruptcy.
The service manager that I spoke with said, GM states if 2 qts of oil is used between oil changes the engine needs rebuild. Get this, rebuild is only rings and maybe lifters. Service manager said nothing else needs to be replaced because the engine has a Teflon coating.
Teflon coatings does not last. Pingback: Gen 3 vs. Thanks for the advice Brian! Unfortunately, I found out about the lifters too late. I had to replace them all and the camshaft as well. Fortunately I received a reducing in house shop hourly rate. I went ahead and purchased a Disabler on Amazon, for preventing it happening in the future. Is there any reaction to the disabler when pulling a boat or trailer?
Thanks for the detailed post! If under the truck while parked and it is doing it it sounds like it is towards the back of motor. But not sure very annoying. Any guidance would surely be appreciated. Vehicle has 40k miles been maintained well and shows no signs of lifter concerns at present. I noticed this discussion mainly addresses Chevy Silverados and other trucks? If I were to put a 5. Or not because it is the cast iron block and not he aluminum block? So, when I had to put the AFM on that scale of perfection, I found some of its disappointing sides too.
Want me to tell you in a bit more constructed way on why should you disable the AFM? At that time, all you can think of is hitting the last digit on the speedometer. But can you actually run when you've got a rope tied on your neck? The answer is NO, obviously! A V8 is always a V8. But keeping your ride chained will never let you know how it feels when you run with the wind. Keeping things raw gives us a certain level of satisfaction, especially in the case of cars and trucks.
But having an AFM in the car is not what I call being agreed to that. Sparky Moderator. This is something I'm going to have to check on since my new-to-me Silverado has a 5. My only real concern with getting this truck is the AFM and oil consumption reports. Likely I'll just get it tuned out and be done with that part, but until then I don't know. I keep hearing that but mine is about the same since I bought it.
C-ya Hobbyist. Instrumental said:. C-ya said:. I think it was My '05 had it stock. If your engine code is LH6, you have it. I believe was the inaugural year. Mine is and has it. My 07 Denali has it and I never knew it was working until about k when it started using oil. I can also feel it in the 4 cyl mode 30 mph on light throttle but its not bothersome to me.
The oil use is only at high speeds and hills. If we just use the car around town I don,t have to add before I change at 5k or 6k. Car has , on it now. I forgot to post this but it has been months since I did the delete and I used to have a rear main seal leak before I did it and now it has magically fixed itself havent lost a drop of oil in months.
I'll have to try this. Is the sensor that needs to be unplugged in an obvious location? Its just right on the brake booster. I would like to try this method but cannot figure out how to separate the connector at the booster. Also I am wondering which wire would be controlling the DOD.
Might consider spicing in a simple open close switch. Should be fairly simple. IIRC, it has a grey locking insert. Slide that out completely, press on the tab and pull. I think if you splice into the blue wire, it should work as it is the signal wire. Don't know if you will actually get Displacement on Demand on demand though. Might have to shut off the engine and re-start to get it working again. MountainMax Registered Member. Reviving this thread for my x. If you did get the tune, which tune is it that will disable the DoD - the Lime-Swap or something different?
Initiating cylinder deactivation puts a load of torque generation on active engine piston cylinders. Turning off cylinder deactivation is possible in most Active fuel management-enabled cars. However, you may require performing a few simple crucial steps to disable it in your vehicle.
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