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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    BBP tune is ordered. To better understand.........Wouldn't I need to drive the vehicle a number of miles, send the data to BBP and receive back the custom tune via email? Assuming that is the process - What if it goes back to misfiring cylinder 1 during analytics testing?
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    Thanks Gents! I'm a bit confused on BBP "newish approach". I spoke with a rep RIGHT when this issue was starting. He was very helpful; however, I wasn't exactly sure which route to take as there were different options (then what was offered in previous years as they changed their business...
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    Bringing this thread back!! OP here.........The vehicle has been at the mechanic's shop for 1 month (he was out of the country and has a ton of other vehicles); however, VERY HONEST. SHORT STORY LONG - He has driven the vehicle a total of 34 miles and the following is his diagnosis: The...
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    HA HA - I'm still working on that "know how" not going to lie.... I'm a bit intimidated by the lifter process here : /
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    The noise was caught early and at my house. No check engine light and was questionable while trouble shooting. After checking, rechecking and moving the vehicle it suddenly stopped for 20+min in the driveway. Drove 1/4 mile and the check engine light came on and it was back only worse.
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    @swathdiver - THANK YOU SIR! @swathdiver @Geotrash - Oh hell, so per the last fire drill I had like this (that ya'll walked me through in late 2021 regarding the transmission) and when I had the rear main seal replaced. I had a clown (maybe 2) tell me that bc the vehicle was AWD and the oil...
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    I'm not above turning wrenches but I do have to pick and choose which projects to take on (My Polaris, Dirtbike, hunting & fishing addiction) keeps me in the red. I'm pretty pissed about this deal aside from this forum the mechanics are talking crazy...almost clueless. Of course there's the...
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    You've created a beast: https://www.texas-speed.com/p-7379-texas-speed-performance-dod-afm-delete-kit-for-536062-engines.aspx Here's the deal I don't want to cut any corners and want it all done right. I just spoke with black bear and we're putting our heads together. The mechanic, myself...
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    Ok - things are moving fast and I'm KINDA picking up the process; however, my mechanic is saying he would "simply replace all the deactivation lifters with regular lifters for me to deactivate the system. A stuck lifter is never worked on to get unstuck. It is always replaced". I had a hunch...
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    Appreciate the feedback and excuse my ignorance here. Is the process to have the lifter unstuck and then delete the AFM system? Therefore I wouldn’t need extra parts and I would keep rolling? I’m thinking that a @BlackBearPerf will be purchased; however, I want to make sure the vehicle is...
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    @Geotrash @swathdiver - I appreciate the heck out of ya'll. I want to mirror Dave's approach of turning this 6.2 into a racecar but in all honesty I'm still concerned there may be underlying issues that I've either neglected over the years or hell I flat out don't understand....Prolly time to...
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    You hit the nail on the head - my trust worthy mechanic (NOT A PERFORMANCE SHOP) just texted me and said it would likely be a $1000-$1500 fix. I haven't verbally spoken to him (it was his wife texting) so I'm not sure of his exact process - It'll likely be what you'd expect from a good mom/pop...
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    Appears to be a lifter issue......Where and how far to go with this is the question at hand.
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    As always many thanks imparting the vast knowledge. For efficiency I sent you a message but will upload the video to the thread for other members knowledge (pressed for time in trying to figure out YouTube)!!
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    To clarify - The “knocking” happened late Saturday (last weekend). There was no check engine light and it was uneventful until I popped the hood and started connecting the dots. Yesterday (after this post) I checked the oil which was OK, looked under the vehicle which had leaking oil around the...
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    WELP - It got very interesting. I checked the oil and cooler lines (these arent in great shape as I did have a bit of oil on my hands inspecting them). Sent a video to a mechanically inclined buddy who said "that my friend is a rod knock OR LIFTERS"...told me to check the oil and see where it's...
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    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    Good morning - Dreading to even start this post as I haven't had to engage this forum with what I think (hope not) is this biggest issue I've had yet: 2012 Yukon AWD Denali 6.2 (Original Owner), **165k miles w/trans and rear main seal replaced at 152k in 9/2021 Oil Changed every 5k, mainly city...
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    Advice: 2012 Yukon Denali - Z55 Tires w/level

    Apologies Gents - I've been out out of town and away from this headache of a project (never thought a level kit would be such a PIA)..... @swathdiver - You have an impeccable way of simplifying things in a logical comical manner! Great analogy! @Joseph Garcia I installed Nitto Recon Grapplers...
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    Advice: 2012 Yukon Denali - Z55 Tires w/level

    Aside from having a spare on the driver side it turned out well. I can't decide on tires though: (currently 285/45/22 Duellers) not impressive and weigh 47 lbs Considering (285/50/22) Nitto Recon Grappler -E rated weighing 60.4 lbs...
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    Advice: 2012 Yukon Denali - Z55 Tires w/level

    @swathdiver @Joseph Garcia - I'm meticulous natured; however, I have a silverado with a 6 inch suspension lift and 35's (ranch truck) so I'm all too familiar with modifying Toys. I don't want to do anything too excessive due to this being my daily driver (can't check all the boxes but I'll darn...
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    Advice: 2012 Yukon Denali - Z55 Tires w/level

    Good morning gurus!! Yes another question about tire fitment....I racked my brain trying to understand Z55 Auto ride, lift considerations, etc. @swathdiver got me lined out with every OEM component for all new suspension. So here we are - dropped the 2012 Denali off this AM with a...
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    Denali Passenger Side Mirror

    Just seeing this....Do you still have the mirror?
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    Denali Passenger Side Mirror

    That would seem logical..HA HA! I've got too many projects (on top of work) going on at the moment and a terrible habit of trying to order ALL PARTS before the weekend when I have time to figure out what the heck is going on and rushing to install. It baffles me how much parts cost (in general...
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    Denali Passenger Side Mirror

    Good afternoon gurus - I'm apparently challenged at this part ordering thing. Can anyone confirm the difference in glass in the rockauto link below? https://www.rockauto.com/en/partsearch/?partnum=20778441 Also, my glass is functioning fine - It just doesn't stay in the housing connected...
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    Denali Passenger Side Mirror

    @swathdiver - There's the man! This is what I came up with thus far...

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