Recent content by rjr

  1. R

    Battery Suggestions

    I have read that an AGM calls for a different charging curve than an AGM and should only be used if the charging circuit is designed for AGM. I have been getting batteries from Costco, which in northen virginia are made by Interstate and give good service. I just replaced 4 in my boat, after 6...
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    Instrument gauge cluster repair -- overnight parasitic battery drain

    The Amprobe LH41A Low Current Clamp-On Ammeter enables one to read direct current flow without breaking the circuit. This is the only clamp-on DC ammeter that I have found. All other clamp-ons are for AC and if they say DC, require you to open the circuit and use leads. This meter will show any...
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    Air cleaner body removal

    I have a 2015 Yukon 5.3. The guidance says that for several operations, including battery or headlamp replacement, the air cleaner housing should be removed. I have no problem removing the top cover or filter. Guidance says that the air cleaner body simply pulls off, but mine has not yielded...
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    Your Preferred Motor Oil?

    2015 5.3 takes 8 qts
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    Thoughts from a 2018 owner to a 2021

    My wife's 2019 Acadia Denali has a camera button on the home screen. It is very handy when parking
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    Best wiper blades/inserts?

    OEM on 2015 Yukon is Denso.
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    High Temps 2011 Yukon XL Denali

    Do not overlook what swathdiver said above: switch to 60% water/40% antifrreze. While that lowers the boiling temp, it also raises the specific heat of the coolant mix and it can remove more BTUs of heat from the engine, causing it to run cooler. Learned this years ago from running tests on...
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    No pressure in cooling system

    I'm curious. Where is the heater core that serves the rear HVAC system?
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    Yukon tail lights now covered under "special coverage"

    GMC has issued a notice N182180270 for 2015-6 Yukons warning that tail lights may intermittently go out. If this happens, GM will replace up to 72,000 miles or 5 years. Past repairs will be reimbursed. Left unsaid is how you're supposed to know if lights go out intermittently, unless some...
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    Interesting wiper issue

    Originals were by Denso
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    Oil filter difference ?

    Swathdiver, how doe the AC & the Wix compare on oil flow, a topic which you touched upon in another thread?
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    Bad News from Blackstone

    Personally, I would not hold off changing oil, even Mobil 1, until the 10% level. While synthetic oil holds up well, it still collects condensation, fuel residue, and acids. I change every 4-5000 miles; oil is cheaper than an engine. Only exception is if we're driving coast-to-coast, so...
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    New to me 17’ LS

    My 2015 didn't idle roug when new, but it does now, especially in summer with a/c on. Dealer says it's normal.
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    4 wheel auto how it works .

    Thanks, James. It's unfortunate that GM can't make the system quiet.
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    4 wheel auto how it works .

    Swathdiver: Thank you much. For a long time I hsave been looking for a description of how the GMC transfer case actually works. It is much smoother than the one I had on a 1997 Expedition, which you could feel engage when rear wheels slipped. Never felt that on my 2007 Yukon or my current...
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