tonygxp

I just traded in my three-year-old 2016 all terrain with the 8-speed and 5.3 double cab. Week before I trade it in I had the tires rebalanced Goodyear Wrangler SRA of course and two of the four tires had issues where they were just going up and down on the wheel balancing machine the technician was amazing as I was not putting new tires on the truck I'm about to trade he bounce them out to zero after about 2 hours and I took the truck for a ride. Rides perfect never rode like this before. Going back a few months ago I finally had the torque converter replaced and trans flush with the new low viscosity fluid that they claim is the issue with the 4 cylinder 8 cylinder operation and that took care of a certain vibration at around 77 miles per hour but it still didn't ride right and lo and behold it was the tires. But like many have said there's so many moving Parts on this truck and for some reason they tune this chassis to be so tight with intolerance of vibration that any little thing any little variance can trigger a terrible oscillation at the higher speeds I bet you if you took a 300 pound weight and put it in the bed of the truck and move it all over a place and took it down the highway you can counteract the vibration but a why should we have to do that and be who the hell is moving 300 lb to figure it out! I love that truck but as soon as I got on the highway and took a trip somewhere I remembered why I hated it PS it's not just Goodyear Wrangler issues. it's the truck.. my buddy has a 16 Sierra Denali with the 22s on it in Ultimate package none-the-less and it does the same thing (vibration) at around 72 to 77 miles an hour.

haven't been able to post been busy. my truck went back for a second shot at the oscillation issue at 70+mph cruise.. they replaced the bad tire i pointed out to them with the hump in the tread causing out of roundness (that they missed the first time saying rotating it 180 out on the wheel it balanced.. no way it did.. i had it rebalanced privately and it was pointed out to me So.... old tire 30+ on the RF balanced new one says 8.. that said it is a little better but still there.. the service writer bill, great guy, owns a 15 CC Sierra short bed with 18's.. says he got his same week i got mine, his does it too.. and he got one with 18's seeing how many 20 trucks had the issue lol.. He said roadforce replaced two tires helped but it's still there GM doesn't know what to do other than throw parts at it.. minimizing the issue but it never truly gets repaired it's an engineering / design issue.. well there's your answer folks and i believe him 100%... most people don't have to deal with it enough that they'll buy out there 2% of unsatisfied owners and hope to hit it on the redesign.. On a side note, they said they are going to repair my damaged wheel (face) in the spring when it warms up a bit. I put the spring clamps on today and man did it smooth out the ride these rancho's have... if anyone reading this has rancho's on their sierra's these clamps are a must... so happy the oscillation didn't bother me as much lol.. hit bumps with nothing in the bed and it feels so good, like a car over sharp impacts... before it was "nervous" too springed up i guess is a way to describe it? but spend the $15 and it took my 5 minutes to install over the rear tires with my dewalt impact. 1.2.3 done. about 5 inches in front of the rear (closer to cab >>>>).

my onstar antenna was leaking from new (in Aug 2005, i was the 2nd person in NJ to take delivery of the new V8 Grand Prix GXP) and it was filling the map lights lol... not funny then for sure... That car also had a pinched yaw sensor wire, caught under a screw to the center console on assembly... great job "eh" (built in a canadian plant which won quality build awards lol...i can't win!) stranded with 90 miles on it.. no power at all..was shorting out... and then again at 250 miles PS. my first all terrain (a new 2008 Extended cab) was allowing water to come in through a loosely fitted passenger front door.. used to soak the floor... I don't know why... i keep buying these GM's? I lemon law'd a 2003 Envoy XUV for AC that would go hot for no reason after the first start of the day (once it was shut down, upon restart AC would take several minutes of hot air blowing before compressor would come on.. replaced EVERYTHING to no avail!) now i have a Sierra that oscillates or vibrates, take your pic, on the hwy

so far mine has been good. 10/15 build date purchased saturday after thanksgiving.. i have had the pandora bleed through during a phone call to a doctor, that was interesting i thought it was on his end lol.. then i realized it was billy joel which i was listening to before!

yep..... like has been stated hundreds of times in this thread and elsewhere they all exhibit this just let someone who has it take it for a ride they'll point it out and after that your world will never be the same lol Thanks for the update. I emailed my dealer about all the issues i found when attempting to rectify it myself with the help of a friend who has the same truck at his 7,000sqft performance shop which is equipped better than most dealers around here including an awd mustang dyno and machine shop including a $250,000 five axis CNC machine just to nae a couple of things dealers do not have (at least around here)... If i don't receive a satisfactory response from them I will bring it back to the selling dealer (idk what they will do about the wheel the repairing dealer damaged?) and from there I will install those blocks, see if it doesn't quell the shimmy/oscillation/vibration (or whatever other acronym for RIDICULOUS RIDE QUALITY you like lol).. from there I will continue with a call to GMC customer service and from there??? 1-800-my-lemon which i hope doesn't come to that.. I have to hand it to some of you guys who bought these trucks.. god bless you..I would be on fire if i owned this thing... even if i leased it without the extra $3k lease cash i found on this one (increasing the payment another $100/mo)... it's the only thing keeping me from parking it back at my selling dealer and handing them the keys....it's hard to get mad about something I only deal with on the hwy, it's my wife's truck I have a jeep and corvette. but we take this truck on trips, we like to travel in a full size truck.. if i only knew ahead of time i would have leased a ram, rides like a Cadillac on the hwy (i've had them for work vehicles recently and the F150 rides great too but much more truck like, sans the shimmy!). I plan (or planned) to take this truck on a road trip during spring break when my wife is not working to either florida or possibly the corvette museum, maybe football HOF but idk if i want to lose my mind on the ride there watching a water bottle in the cup holder! as i try to convince myself it's not there, it's back what about this speed?? i purchased this truck to replace her 13 equinox LTZ which outside of the outdated cheapy interior and noisy V6/transmission in the AWD one we had and the mechanical power steering which sounded like a 70's nova when sitting still and turning the wheel (which the tsb requring new lines and different valving did nothing to rectify, yet the 4cyl base LS fwd had electric steering lol) DID NOT shake on the hwy at any speed.. when do you upgrade to a 3yr newer vehicle with a 15k higher msrp and feel like you downgraded? if i drove this every day i cannot lie, i could never do it... never.. thank god for the other vehicles i have access too. and thankfully the wife stays local..

my tailgate locks... the 2016's do that now. me too. and my friend's 15 Denali CC 6.2 as well. also my other friend's 15 LTZ CC 6.2 short bed with max trailer.. they all do it.. i'm convinced every last one.. and if your's doesn't? come on by, i'll take you on the hwy and point it out to you.. (only kidding if you don't notice it enjoy, you're the lucky one lol) Glad to hear that please keep reporting back after each week or whenever you come back from an extended hwy drive.. I started a thread called "how to handle this" regarding my "shimmy" vibration whatever at 75mph or so... I will say retightening the U bolts, the truck is nowhere near as bouncy as it was with the ranchos.. they were loose.. cab mount bolts were already tight as anything so doubt that helped... maybe next trick will be attaching another clamp 5" inches in front of the U bolts on the spring, read somewhere in here guys did it and it quelled much of the vibration/shimmy.

thanks brother. i am actually bringing my truck tp my friend's shop today to do some experimenting and with your experience i am going to attempt to duplicate your success. i want nothing more than to NOT think to myself "is it doing it AGAIN?" will report back. ps i am or was i'll try your resolution first, put my rear axle on his mustang load bearing awd dyno (wb is too long to put whole truck on it)

I have removed my soft tonneau and it was actually IF ANYTHING a little worse.. couldn't tell if when i pulled back onto the parkway if the pavement/elevation was the cause or the removal of the cover.. so there goes that theory.. the short bed with CC i believe is the same WB as the DC it 6.5ft bed like mine.. I will however return to the dealer now that the ride BACK (over 140 miles) disturbed me this much.. if need be i will have them road force balanced myself then call gm customer service if i am forced to pay $200 bucks or whatever. that will bother me.. especially if the wheels are PART of the issue (report showing what it actually was before vs after vs acceptable

and what size bed with the CC? the 6.5ft bed with a CC appears to NOT be mentioned often in this thread from my observation. at least for the 75 mph and up vibration. just drive back to NJ from poconos and this time with a 225lbs passenger and 100lbs rear passenger (both sat on right side of truck, front and rear) maybe 30lbs of cargo in bed and gas less than 1/2 tank and at first on route 33 traveling at 75-80 was non existent then out of the blue maybe 15 minutes into ride it just started up and this time didn't change anywhere over 75 until 90 and change (down big hill no traffic and wanted to see IF it would go away).. i just don't get it... other times during the trip didn't matter new pavement, uphill downhill just comes and goes. when i got home i was able to check my left rear wheel and the two marks are still in the same spot so that tire isn't slipping on rim, the others i couldn't find the darn mark on the ground i'll check tomorrow... I did notice that the right front wheel (which was the only one they changed weights on even though the repair order says ALL were rebalanced??) weights are all over the rim? like one 1/4oz inside then a foot or so another 1/4oz on the outside then a strip of over an ounce inside then another strip outside... what the heck is that? HAS TO BE INCORRECT. i've not noticed it since i brought it in on 12/31.. the repair order is in this thread but not on this computer so i cannot link it. scratch that.. found it.. zoom in on it and read... i'll post a pic of the inside of the wheel they rebalanced i would love to hear from someone who specializes in road force balancing to let me know if the weights all over wheel signals a problem.

well, i drove up to the poconos last night. 140 miles. the vibration comes and goes, its very slight but enough for you to know something is not right. its disheartening to say the least that such a nice truck would be so disappointing to take on a trip but its a lease. i pay 378 a month for it no money out of pocket. this is after the right front tire was rf balanced due to it supposedly being the cause. like others, it changed the frequency of the vibration but didn't quell it. neither my wife nor i travel on hwy for long enough periods of time to fight with gm over a "rented" truck. its most certainly in the rear. pinion or ring? maybe an axle or its the whole housing not in spec. convinced of it. its through the seas and floor. if it gets to the point that i cannot deal with it? then i will go back. i was in an enterprise 2015 f150 cc 5.0 18" wheels yesterday same stretch of hwy at 75 to 85mph that my truck rides like a nervous teenage boy walking into his first school dance and it was smooth as glass. the water bottle in the cupholder was perfectly still with just about no oscillating water dancing inside, only over rough pavement. i hope gm fixes them when this one goes back in 2018 because i do love everything else about it.

build date 10/15 aluminum.

yes, from what i have read and two of my friend's have that config with 6.2's both not happy but different vibrations than the rest of us complaining about. others in this thread have said their 6.5 CC have vibrations above 70 so it's again, something cumulative not a singular issue which is why WE ALL BELIEVE IT TO BE AN ENGINEERING/DESIGN FLAW that's why even when it's "fixed" it doesn't completely go away, just changes to intermittent and/or different load/speed noticeable i have said it before i'll say it again... maddening... trucks are so nice, quiet, ride great at under 55mph look great and BAM cannot go on a hwy cruise.. the main reason we bought the truck is to have the full size truck RIDE we have become accustomed too having owned so many.. never this issue.. closest was a set of tires/wheels improperly balanced..

correct and to answer that other poster's question, i too have/had the vibration in mine in the upper 70's most evident. Has since changed to intermittent same speed though. on some highways since the RF balance of the right front tire it is still bad.. but it is better overall, just not fixed.. enough to disturb me and after next weekend's 2.5 hour each way trip to the poconos i'm sure i'll be back at the dealer lol it's definitely a culmination of issues which are exacerbated under different conditions, speed / road / load.. imho.

buy a tire crayon and mark the rim to tire in two locations on each wheel. Maybe these tires are spinning on the rims now and then? Friend mentioned to me that on his 6.2 Denali CC 2015 that the bar codes were working their way out of the wheel lip and sticking out. he couldn't understand how that's even possible. never ONCE thought the tire/rim were not bonded well enough to avoid slippage.. We're not talking about 10 second race cars lol.. I'm going to do it to mine.. My front right tire was badly out of balance (according to the dealer requiring a flip 180* out on the wheel) and all others were slightly out. imagine that this was causing more problems after or even before the original Root of the vibration (driveshaft, rear, shocks etc) have been repaired?? fix one problem, another rears it's head sounds alot like tire slipping on wheel.... i hope you guys try it and report back. make sure to get on the truck especially from a stop and low speeds, that should expedite the results as that's probably when the tire would slip most.

i think it may be in the rear end. of the 3 maybe the one that shifted totally different had a different rear gear or was assembled earlier or later than the others? maybe it is just a matter of an out of spec torque gun upon manufacturing? preload set on the pinion bearing? like one of the other guys mentioned before.. the tires/wheels have to be 100% on or it exacerbates the issue (imo).. and that's PROBABLY why some that get the balancing see no improvement? the rear is just that far out of spec.. and the cab body mounts, like has been mentioned, are just not in sync with the resonance being created by this powertrain/frame... it's maddening btw, see the definition blow? this is what we are dealing with.. good part bad part it doesn't matter... whatever parts are causing this resonance are more elusive than Keyser Soze lol... sucks.. yes, i can make light of it what else can we do? UNFORTUNATELY there are way worse things in life we have to deal with... here's a quick read on frequency/resonance to break it down somewhat.. i equate the cab to the object with standing waves that is being affected by the other object moving.. when it hits 74mph is when the "MUSIC" starts lol ^^^^^^^^^^ this is the water vibrating in the bottlein the cupholders in a few of those trucks where the owner took video and linked it here.... when the water is just "buzzing" violently that's the spot- the resonance vibration.... our trucks do this naturally just to different degrees, which is where GM is dropping the ball.. they cannot (for most of us) isolate the biggest offender and "fix" that part so that the rest of the naturally occuring resonance vibration goes mostly undetected... it's just different decibel levels....

buddy, when the poll results are in, you will see what's what. for my selling dealer to mention there "used" to be a vibration problem but it's fixed for 16 and then my servicing dealer to tell me that we can balance the tires but anything beyond that it has to be done by the selling dealer, that's what gm is making us do? you know it's a wide spread issue. i'll say it again, for a variety of reasons these trucks have vibrations or unsettling rides transmitted to the driver especially, there's a an occasional tire problem or drivetrain component not up to spec, but much of that would be tolerable if it weren't for the sub par nvh design. gmc went out of their way to put noise cancelling in the denali's for a reason. issue is too deeply rooted in the trucks design to rectify 100% or it would have been done already. you cannot say that this issue doesn't exist when there's VIDEOS of it all over internet showing you it's happening in all parts of the country. now does that mean more than 1% of owners notice it? or have it? 1% 400000 is still 4k truck owners. and who is going to seek out a forum and this specific topic? so in end poll may show you it's small percentage. not a big deal if you're NOT noticing or care about it because your truck "Masks" the problem better than others. read gminsidenews.com one of the tech contributors on staff hit nail on head. someone's head is going to roll because of this error in calculations in design causing a resonance felt by so many....

i could totally believe that this reduced the issue to acceptable levels. I think that shocks (ranchos) are terrible in this configuration. The shocks do NOTHING to dampen the impacts even the slight undulations felt at highway speed on relatively smooth hwy... and the Tires? the wranglers just compound the problem, even the LS2 Eagles are better than these. but then again, is it our fault for buying trucks with off road suspension and tires and complaining about the ride quality at 75mph? lol idk... if it is the pinion causing these issues? by all means, but if it was just the tire/shock combo? i would think they would have fixed it by 16... and mine feels unsettled. lowering the tire pressure did nothing to stop or quell it in anyway.. i will have it on the hwy in couple weeks for 300 mile trip. fingers crossed it's repaired with just the front tire being road force balanced!!

may i request that you add a sub poll asking speed and location of vibration eg steering wheel or seat cushion etc? and also one of the descriptions should describe "unsettled" at highway speed. i still think many of those vibrations are really just the chassis feeling unsettled between say 70 and 80 or so. that could easily be communicated to us or a tech improperly.

after driving 4 of these, in these, with trailers, full loads, highway, smooth rough etc etc: a, 14 CC/AT 5.3 (6 speed) 4x4, 15 Denali 6.5ft bed 6.2 4X4, 15 CC Silverado LTZ short bed 6.2 4X4 Max trailer, 16 Dbl Cab/AT 5.3 (8spd), I am convinced GM is perplexed because the (full size pickup trucks) frames/body mounts/design, are built upon a poorly engineered (for the EXPECTED ride comfort/quality of today's standards) configuration. Maybe it's as tough as nails (we all remember the frame twisting of the F150 so bad that the pickup bed wouldn't open vs the chevy that didn't budge on that offset suspension compression demonstration) but for ride quality (which is SUBJECTIVE, but majority posting here it feels like it's OBJECTIVE, i understand I am one of you lol) it's terrible... We have become so accustomed to a smooth riding pickup that in OUR heads this truck should haul, handle and float down the road like a Dump truck, Corvette and Cadillac Coupe De Ville...... I get it. I leased my truck, i love my truck, but I would NEVER buy this truck because even though the vibration can be "masked" with a variety of solutions like tire brand/model change, Shock valving it isn't changing the end result.. something in this design is not bringing the truck TOGETHER.... it's trying to do all and failing MISERABLY at only one... The "Cadillac" part... it handles great, hauls great and rides like crap... My friend's Denali has Mag ride, the Silvy has max trailer package and the AT those Rancho shocks and they ALL exhibit different ride characteristics but they ALL still feel "jittery" even on smooth roads if the surface isn't IRON BOARD FLAT... I have experimented as recent as two days ago, my friend with the Silvy (Eagle LS2's and maybe 7k miles) is in california and I told him I wanted to see how his truck compared to mine on same roads at same speed so i took it out and it's similar in that at a constant cruise the chassis just doesn't seem settled enough to make you "RELAX".... the Denali to me, being a bit lower in ride height and having mag ride does the best at this but remember it HAS THE 6.5ft BED.... longer wheelbase, more forgiving.. telling you, it's the design, nothing can be done to ELIMINATE IT, if there was GM would've done it by now, 3rd model year with an MCE??? some are incompetent, no way they're this piss poor... i bleed gm blue btw.. it's painful to me that my truck, which rides so great around town cannot be the hwy cruiser I want it to be so that it enrages me on the open road.. so much for having a full size truck and driving to florida, or the corvette museum in comfort.. i misjudged the ride.. i have been in these trucks for THREE YEARS and maybe the one tire of mine being out of balance brought me into this thread and skewed my view of them but i am not happy.. I got rid of my '08 AT (the first year they made them) because it was an extended cab and i could FEEL the frame twisting over rougher roads in between the front and rear door because there was no "B" Pillar... now i am wishing for the ride of that truck back lol..... we are our own worst enemy... we ask ask ask and BAM! we get these... Somebody mentioned that they spoke with an engineer and how the engineer complained that people want these trucks to handle like corvettes etc etc.. and I think that's what happened... they made the chassis too unforgiving and we own them so deal with it or lemon law it... anyone else have a better idea? i have 38 mos left (probably 34 or so given their pull aheads) so i will just grin and bare it as i only pay $378/mo without a penny out of pocket on a $51k truck.. Had my payment been $450 or more? it would probably crush me (mentally) and i would get out of it.. but for $98 bucks more a month than I was paying for my wife's Equinox LTZ that stickered at $36k HOW COULD I COMPLAIN? btw, she LOVES the truck so what am i doing here? I have my own daily and a Vette lol...... And for anyone swearing it's this or that causing the RIDE to be unsettled as it is at times over certain surfaces (which is what many of you are complaining about, rightfully so but we may be misrepresenting some of these calling it a "vibration"), you're making yourself believe something to feel better... it's the design and that's it.. because all else would be absorbed in the suspension/frame/body bushings/mounts etc and it would be acceptable... these trucks are so quiet inside now that we notice EVERYTHING..... unsettled ride = "vibration" as the suspension tries to cope with the issue.. jitteriness is how i best describe my truck's ride... it feels like it's riding on top of the tires and road and if you jerk the wheel you would just "slide" but in actuality it handles extremely well and is planted as far as the tires will take it.. I can't imagine how ridiculous one of these on the 22's handles... must be (feel) as good as my vette... the jitteriness of the ride makes the water shake in the glass in the center console cup holder on the hwy.. which i watched on youtube a hundred times and caught myself looking at in my own cup holders.. that's not vibration, that's a jittery ride... and given all these trucks have different spring loads and shock valving, they all have that "jitter".. some combinations hide it better than others. that what comparing 4 of these in different configs has shown me.. there are 100 other reasons for "vibrations" including tire/balance driveshaft etc etc, but i honestly believe after experiencing this issue myself then being able to go BACK and drive my friend's trucks and speak with them about these issues as recently as last night (none of which who are happy with their trucks as all exhibit some form of resonance in the chassis at different speeds they also refer to it as "vibration") we (GM really, but whatever) are only trying to "treat" the symptoms we tell them we are experiencing with our own SUBJECTIVE interpretations of this disharmony within this generation/design.. tough... to accept. it really is.. as we love this company and we are loyal. you're either a GM guy or you're not.. I have owned many others but GM outnumbers them probably 5 to 1 in this household and my family/friends... hopefully they get the next one more pinned down. or i will never do this again, not even at that ridiculously low monthly payment (maybe that's why they had $3k lease cash on top of all other rebates last month on a few trucks lol)

ok, just got back from the dealer after almost 2hours (not complaining they worked on it from almost the time i got there, just giving timelime) so here's what i was told and here's what i will say.. Service rep was a very nice man, attentive to my issue and advised me they would let me know if they figured it out. about an hour and a half later, the service rep "Bill" informs me that all four wheels were out by a small fraction but one failed the roadforce (no numbers provided, i let that go for now as to not SOUND like a PITA). I went for a ride with a quality control guy and we drove for about 15 miles from the dealer, to the GSP Lacey Twp Rest area and returned. the road goes from terrible to glass smooth and the vibration in the seat bottom i could not detect at any speed. i was happy. The quality control guy advised me that the front right wheel/tire failed the roadforce. I found that odd because i FIGURED (because of my vast training and experience as i am a certified backyard mechanic with "A" designation lol) that it would be a rear wheel/tire due to the vibration in the floor/seat.... Anyway, truck road/drove well (even though at this point I, as i am sure many others on here get HYPERSENSITIVE once we have something repaired as intermittent and bothersome as this ESPECIALLY when you google it!!). I will report back after another trip in a few weeks, same trip as last time so same roads etc.. I am keeping my fingers crossed... A couple notes.. A- the tech scratched my dam front right wheel... i guess that's just life. B- the front right wheel has all new weights on it (only one with new rest are factory applied, i took notice before i brought it in) C- Lester Glenn, whom I have dealt with forever once again addressed the issue quickly and I recommend them to anyone for service/sales. Unfortunately for me, i had to purchase my truck(specific dealer applied super bonus tag vin) from miller because this was one with $3k lease cash attached to it and they wouldn't trade it away.. so as loyal a customer as i am, $100/mo more i am not lol... D-i was going to tip the tech $20 but i ended up giving it to the service guy because the tech just didn't take the extra couple minutes to wipe down all the greasy fingerprints on the wheels and outside door of my 1,100 mi 51k truck. oh well. If he splits it with the tech on him. I did not tell the service rep about the scratch or fingerprints, God Forbid i have to go back lol. service ticket. hopefully you can read it if not i will transcribe exactly for anyone in need. interestingly, the report says all wheels/tires re-balanced but i do not see any change in factory applied weights on the other three wheels? hey, if it's gone i'm fine with it! the infamous right front wheel/tire with DEALER applied weights and tech installed scar. there are weights all over inside of that wheel btw, different locations... that's just to show that dealer actually did replace factory weights. left rear wheel center cap with nick on it since delivery (haven't bothered mentioning, just wanted to show as quality control is definitely part of the problem here imo.. why not just pop that cap off and replace before it leaves factory or dealer prep/tech inspection etc?? idk who is at fault, factory or dealer but regardless, subpar imo) right rear wheel/tire factory weights left rear factory weights left front factory weights hoping it fixed. and hoping it may help others on here.. i would have sworn it was going to be rear or driveshaft or rear wheels/tires....

taking my one month old 1100 mi truck in to dealer at 730 to have them look at my vibration. i am getting it at a steady cruise only in between 70-80 or so. up through the seat cushion and it feels like an out of balance rear wheel (hopefully lol). i did notice that the left rear wheel has about 2oz on the inside and 2oz on the outside so hopefully it's just the tire!!!!!!!! first real road trip i took with it was day before yesterday and the return trip (350mi). i through it in "m" dropped it to 5th even, still there.. even neutral but it remains ZERO CHANGE.. so either rotating assembly back of trans out or a tire/wheel... will post resolution either way by afternoon.

At Tune Time Performance today. Applied Optic-coat 2.0 on my hood and my friend's 15 6.2 LTZ with 3.73 rear (truck is a beast). we are going to do the rest of the trucks at another time. just too caught up in other things, started to late to remove defects etc on all panels. these hoods are like GLASS now http://s45.photobucket.com/user/TonyGXP/media/20151205_174440_zps7ezx9890.jpg.html

picked it up last night.. love it flashback to the original and my first new pickup! 2009

7500mi on a 6.2 AFM in my YD. first 5600mi was from Feb '10 through November '10 and it didn't use a drop (2500mi was a florida trip). that was dino oil obviously, now there's mobil 1 in it. i am contemplating turining off the AFM. from what my tuner says the only reason the afm lifters fail is due to the functioning of the AFM (collpasing/pounding) with it turned off he says it should be no different than a conventional engine. although if i leave it this way i am covered for another 4 years? at which time i could switch the lifters/pushrods etc. to conventional??? decisions decisions?