Recent content by tuffguy23

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    Any 200,000+ rigs here?

    Hi again: Well yes, original engine and 8L90 trans. I've done lots of maintenance and work on it. I have replaced the cam and lifters twice: at 206K and at 440K miles. The transmission gets new filter and fluid every 12 months. The thermostat bypass keeps the ATF cool, under 150F. lots of...
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    Any 200,000+ rigs here?

    Hi Guys, Just my 2 cents here: Mine is a 2015 Denali, and I just past 450K miles. Its my daily driver. I do all of my own work, so that really helps. Thanks,
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    High Mileage tahoes/yukons/suburbans

    I might also add that I still have the AFM. One change that i made this year is I switched from 0W-20 to 5W-30 oil. My hot loaded oil pressure was 19 psi with 0W-20. Now it is 30 psi with 5W-30. I have read that the minimum pressure needed to reliably operate the AFM system is 19 psi. I...
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    High Mileage tahoes/yukons/suburbans

    Well, its the original engine and transmission ( 8L90 ). I did have to replace the cam and lifters at about 200K miles due to a worn cam lobe. And I had a torque convertor replaced back under warranty at about 60K miles due to the shudder issues. I stay on top of fluid changes: oil every 5K...
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    High Mileage tahoes/yukons/suburbans

    Ok Guys I'll chime in here. 2015 Yukon Denali currently at 431K miles. Obviously lots of highway driving. Very satisfied with it. Good Luck!
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    8L90 Logic

    It sounds like you should do a "relearn" on the transmission adaptive values. Mine was doing the same thing with clunky and lurchy 1 - 2 shifts. You just need a scan toll with bidirectional capability to do this. I'm told the program is already built into the vehicles TCM. The scan tool just...
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    My 2015 Yukon Denali has over 400,000 miles. It's 10 years old today!

    Yes, I travel for work servicing airport equipment at various locations in the midwest. I'm pretty good at doing maintenance on fluid, tires, brakes etc. i take it easy till i feel its warmed up enough. The wife thinks i drive too much though.
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    My 2015 Yukon Denali has over 400,000 miles. It's 10 years old today!

    Thanks Guys: Yes 0W-20 and filter every 5k miles. I've only ever used regular gas. 8L90 trans had a torque converter replaced about 8 years ago. I do fluid and filter on it every year. I replaced cam and lifters 5 years ago. Still running stock AFM. I do try to stay on top of all the...
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    My 2015 Yukon Denali has over 400,000 miles. It's 10 years old today!

    Hi guys: Well I didn't really think I would keep it this long, But here we are. Now I gotta keep it. I guess there's hope for all of us.
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    100,000 mile club

    yes original , however i did replace worn cam and lifters about 5 years ago.
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    What's the highest mileage AFM motor you've seen or own?

    OK guys. I just hit 400K in my AFM motor. 2015 Denali. I'm hav'in a good time with it.
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    100,000 mile club

    Hi Guys. Perfect time for me to jump in here. My 2015 Yukon XL Denali just hit that magic mark this week! I'm happy about it and proud my care for this vehicle is paying off.
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    MILEAGE POLL

    Ok guys.....2015 Yukon XL Denali, today I'm at 357,800 miles. Bought it new 9 years ago. I'm married to it. Gotta keep it to at least the 10 year anniversary!
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    8 Speed Transmission

    so, this December will be 8 years of ownership. So its about 38,500 mi per year. Never used a "flush". I do my own work. Just drop the pan and install new fluid and filter. It has the 158 degree trans cooler thermostat. I did have to also replace the temp sensor harness twice. I consider...
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    8 Speed Transmission

    Well, not to jinx myself, but mine seems to to operating generally " normally" for its build date ( NOV 2014 ). Mine is a 2015 Yukon XL Denali. I had a new torque converter under warranty at 86K miles. I do a Mobil1 blue label fluid and filter change about every year. And by "normal" i mean...
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