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  1. W

    Engine getting hot towing

    I have and towed a 5000lb enclosed trailer a lot early on in my trucks life. The trailer was pretty low profile and pretty aero as big old trailers go, most of the towing was summer months. I rarely saw 230 degrees, even on hot days through mtn country with extremes being as high as 240 for...
  2. W

    Replacement motor questions but hopefully fixable

    Probably depends a lot on the shop, rates, etc. I have a really great independent shop nearby and I wouldn't be shocked if he quoted $1500 for the labor component. I think if I took it to our local dealer (who is perhaps the most cost effective dealer I ever saw), maybe $2000 in labor?
  3. W

    New Here - Just picked up a 2007 Yukon XL Denali

    My first battery on my Yukon lasted like 7 years (new OEM from the factory). My second lasted like 5 years (high quality wet cell). My current battery (expensive Napa AGM) was looking like it wasn't going to last even to the free replacement warranty cutoff. My guess is my use profile had...
  4. W

    Codes P0050, P0059, and P0155 2010 Yukon Denali XL

    PM sent.
  5. W

    Codes P0050, P0059, and P0155 2010 Yukon Denali XL

    I will keep looking in the manual for the connector pinouts. I also have the old O2 sensors that I took out recently when I changed all 4 and clearly can take pictures of the wire colors from the sensor to the connectors and what position on that connector it goes to. I will probably have to...
  6. W

    Codes P0050, P0059, and P0155 2010 Yukon Denali XL

    I can try and find the O2 sensor pinouts in my shop manual. Failing that, I can probably crawl under the truck tomorrow and take some pictures of the connectors, wires in and out, etc.
  7. W

    2010 GMC Yukon XL AWD Clunk

    141,000 sounds about right for motor mounts. The factory mounts are liquid filled and don't hold up like solid mounts.
  8. W

    New Here - Just picked up a 2007 Yukon XL Denali

    Mine fluctuates between 14.5 and a little over 12, depending on where my battery is at with regard to recharge after startup, current draw on that trip, etc. Perfectly normal.
  9. W

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Absolutely true. We went into Macy's yesterday as we needed towels and the one's we liked were like 50% off. There was one person at the check out kiosk and a line about 40' long. The poor clerk was working her ***** off and no help. When we finally got to the check out counter, I asked the...
  10. W

    Replacement motor questions but hopefully fixable

    Here is a video on one guy's approach. It is a Silverado 4x4, but the principles are the same. watch The OEM gasket is riveted on (if it hasn't been replaced in the past), so dropping the pan is going to make removal of the old gasket easier. Also, in this video he explains a little about...
  11. W

    Replacement motor questions but hopefully fixable

    Yeah, I never say good thing I am old…. because all things being equal, young is better… Sorry, got to run and do my back and hip stretches, that hip flexor has been killing me…. :)
  12. W

    Replacement motor questions but hopefully fixable

    I don't disagree with your logic, but then the OP's failure looks like the roller seized versus anything to do with AFM per se. I doubt there are any stats on how many collapsed AFM lifters there are out there, versus seized rollers, but I know it happens to standard lifters as well. In the...
  13. W

    Left front parking light on

    Very strange. I have never gotten the "tighten gas cap" message, but have gotten the code/CEL and when I looked it up found my gas cap was loose, gave it a few turns and it all went away maybe 20 miles later.
  14. W

    Replacement motor questions but hopefully fixable

    I understand that point of view for sure. I have been pondering this stuff for a while and I think the choices people make probably are driven as much by which set of fears dominate their thinking, as anything else. Having lived a big chunk of my life off and on in CA and watched the state...
  15. W

    Replacement motor questions but hopefully fixable

    Definitely, hence the I am no expert qualification. ;)
  16. W

    New Here - Just picked up a 2007 Yukon XL Denali

    Well done, great to know!
  17. W

    Replacement motor questions but hopefully fixable

    I am no expert as well, but if it were me (likely will be one of these days), I would budget an OE cam, all new OE lifters (updated AFM lifters), OE VLOM (updated version). I would also put a new Melling oil pump in (which would mean dropping the pan, so I would install the AFM relief valve...
  18. W

    Replacement motor questions but hopefully fixable

    You are going to get a lot of advice to do an AFM delete, Black Bear Tune, etc. Just be aware, CA is really starting to turn the screw on emissions compliance (and not just that your Truck doesn't produce any more smog than a stock one), they are really starting to look at any mods very tough...
  19. W

    Replacement motor questions but hopefully fixable

    It definitely made the cam NG. Bummer, sorry for the bad news.
  20. W

    Replacement motor questions but hopefully fixable

    You mean #4? #2 isn't an AFM lifter, like you have in your hand. Is it collapsed? Edit: and, yes, it IS a problem, if not THE problem... :(
  21. W

    towing an Astro van 50 miles with my PPV

    I think for me, it is a weight distribution concern. Trailers with a lot of weight in the rear can be kind of squirrelly and once they start to sway, things can get out of hand pretty quickly.
  22. W

    towing an Astro van 50 miles with my PPV

    It is a lubrications thing.
  23. W

    Replacement motor questions but hopefully fixable

    He pulled the valve cover and verified the rockers are operating properly.
  24. W

    Engine getting hot towing

    There is a very informational thread started by @Geotrash on this very subject. I would give it a read. At a minimum, it will give you a good basis of understanding of the dynamics involved and alternatives...
  25. W

    Looking to buy (private sale) a 07LT 4x4/166k (private seller) what should I really look out for in video test drive.

    You will need detailed service records to have anything approaching confidence you are getting what you describe as your goal. Even then, unless it has had the AFM Oil Consumption TSB completed, you have a fairly big exposure sitting there on that front, maybe look at 11-13 model years to be...

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