Recent content by Stewmatic

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    2021 Yukon XL 5.3L Running Rich - Fuel Trim Questions

    These where very insightful tips, I am Going to answer the questions you had in order here. 1.97,000 miles 2.3,200 miles 3. No make up oil yesterday, I checked it when I left for a longer trip and it looked a little low. I drove down to the parts store to grab a quart checked it again and it...
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    2021 Yukon XL 5.3L Running Rich - Fuel Trim Questions

    This is what I got, based on some calculations the airflow looks about right. Not sure about that fuel pressure range 36-48?
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    2021 Yukon XL 5.3L Running Rich - Fuel Trim Questions

    Hey all, been digging into some quirks with my 2021 Yukon XL (5.3L, 2.5 months old, still under warranty). Noticed it’s down a quart of oil since I got it, but after warming up, the dipstick reads full weird, right? Using a BlueDriver, I’ve been logging fuel trims: - Highway (66 mph...
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    New-to-Me '21 Yukon XL - Maintenance and Mod and questions

    Very interesting comments that will require more reaearch on my end. Thank you all for the update
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    New-to-Me '21 Yukon XL - Maintenance and Mod and questions

    Thank you, whats interesting there is no auto start stop feature on my 5.3 Yukon XL. I am just realizing that now. To answer your question your question 94,000
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    New-to-Me '21 Yukon XL - Maintenance and Mod and questions

    Hi all, I recently picked up a used 2021 Yukon XL, and I’m excited about it so far! It came with some fresh updates, including: - New tires - Brake pads - Rotors - Oil change - Windshield wipers I’ve put about 3,000 miles on it since buying it, and it’s been treating me great. That said...
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    Looking to buy 2010 Yukon with 130,000 for $7,000 good?

    the 2011 Tahoe is supposed to be a very reliable vehicle according to Carcomplaints.com this particular model lands of the best of list. Not an easy list to land in. I would recommend a pre purchase inspection and checking the carfax. I am currently on the hunt for a 2013.
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    Humming noise when tightly turning steering wheel, only during cold start and go?

    I must say I am having the same issue, only on the first hard turn from a cold start. My assumption was to change the differential fluids and add some anti slip lubricant. There is a anti slip prevention fluid made AC Delco 10-4003 LS lubricant
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    Disable AFM

    We paid all this money for the vehicles and worry about the engine and transmission all the time. It’s really a shame. I haven’t had any issues with mine. But man it’s scary to read. I am out of warranty soon.
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    2021 Yukon xl

    Thank you for the welcome to the community, I have fallen in love with this truck. I am going to look into the ally ans Gmpp too.
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    2021 Yukon xl

    Thank you, to funny I watched your battery replacement video last night. Another thing I am thinking of doing is changing the Automatic Transmission fluid while it’s still under warranty through the dealer I bought it through.
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    2021 Yukon xl

    These are all great suggestions, thank you. It’s 38 degrees out here I wonder if I can check the A/C given the climate.
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    2021 Yukon xl

    Hi, I am picking up my first Yukon XL tomorrow. I am buying it used with 90,000 miles on it. It’s a 2021 with a 5.3L. Before I pull it off the lot tomorrow I wanted to see if anyone had any advice on things to check before I clear the lot and I’m locked in.
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