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    2013 Denali poor acceleration

    Sounds like mine, with bad O2 sensor ?? Good Luck with it.
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    O2 sensor programming?

    Well....I got code P0171 and my scanner said "fuel trim lean" ...don't think it pointed to a side. I am not up to ***** on scanners...ha. I do not have a fancy one. It's out in the shed, so I don't have the name and model to mention. I will try to graph sensors tomorrow and see what it sez...
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    O2 sensor programming?

    Thank you. Replacing due to 198K miles. Nothing was wrong until I replaced. I'm thinking it's the Densos. Got from Rock Auto and think I bought the right ones.....anyway..I ordered some others and they were much more $$$$ OEM. I reckon I will find out when I get 'em on there !!!
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    Lube Chart?

    I wonder about mine also. I only know of 2 zerks on mine....two outside tierod ends.
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    O2 sensor programming?

    I installed 2 upstream Denso sensors...no mention of programming.....but....after about an 80 mile run, I am getting a CEL. Code is P0171. My cheapo tool says "fuel trim lean". I just ordered 2 GM OEM sensors. A note on them says some programming is needed upon installation. What programming ...
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    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Installed the front 2 O2 sensors. Keeping the old ones for spares.
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    Squirrel Damage (con't)

    We live in rural S. MS. Rats will eat a truck in no time if they get to it. Keeping the hood open helps keep them out, but truck must be under a shed. I keep poison out and use a 5 gallon bucket with a 2" (or so) bung for the poison pellets....dogs can't get to it. I have tractors and...
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    Mystery hose

    I think it's the transmission vent. It needs to be secured.
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    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Yes it does, thank you. I don't have anything happen when I turn the steering wheel. Just got the constant "stabilitrak/traction control warning. Having no problems at all that I can detect...and it has been like this a long while.
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    What to do with the roof of my 2003 Tahoe

    On the deep scratches/rust...can't you get some Ospho ???? rust killer stuff , then prime ?
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    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Hi Grady...how did you find out it was the steering position sensor causing the stabilitrak to error out? Thanks
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    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    How did you find out it was the steering sensor? My stabilitrak etc is erroring out.
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    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    I just ordered some Denso O2 sensors. Hope they work.....and now......I want some mudflaps too.!!!!! (it's catching)
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    What the hell is this????

    Looks kinda like a 9mm shotshell.
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    Service Manual

    I went to their site and can find no Tahoe at all.
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    Magnaflow muffler upgrade on 2021 Tahoe with 5.3

    I think it's 2 1/2". I did the same thing, but removed the resonator. I like the sound. Like to hear my engine a bit. Not sure of my Magnaflow model #.
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    Shell Rotella 15w-40 motor oil

    I used it in a 4 cyl 2000 Jeep. No problems .
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    AC issues wont blow cold air

    How did you go about blocking the lines ? Thanks
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    Replacing front struts etc

    I think you can buy those pre-assembled ???
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    What do I need to reset codes?

    Drive on.
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    Mystery milkshake after pan gasket change

    I like them also. Going there tomorrow AM to pick up brake parts.
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    Normal DRL function?

    I pulled the fuse when I first got my truck...so never saw what they looked like..
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    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Ordered a replacement drivers' durafoam seat cushion from the Seat Shop.
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    Alternator going bad?

    All looks ok to me...but the meter at half charge..maybe wacky meter ?
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    AFM / DOD Delete

    If the stock cam is not damaged...engine running good..........can just the lifters all be replaced with stock ones ? The push rods would need replacing also ?? thanks

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