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  1. M

    Loosing coolant. Underhood coolant smell

    One of my friends is still an NYC livery driver, driving a 2011 Lincoln Town Car that recently crossed SIX HUNDRED THOUSAND MILES, on the original engine. She's replaced more parts without 'adequate' diagnosis than any five of us put together. She and her mechanics took educated guesses about...
  2. M

    Transmission Hops when hot

    https://www.lubegard.com/products/red https://www.lubegard.com/products/platinum https://www.lubegard.com/products/atf Before you get any of those, might want to consider a used ATF analysis, might give a better answer than we can. That said, there are some hard parts that wear out, loosening...
  3. M

    Electronic Transmission Shift Control Pushbutton

    Next thing ya know, GM's parts will have more and more in common with John Deere ...
  4. M

    Wife hit a pole....

    In a strange way, she has a point. Be grateful you managed to pass, at least some part of their brains is capable of enough reasoning and spatial awareness to let you pass. An old and very dear friend of mine INSTINCTIVELY drives down two-lanes in both lanes at once. She SAYS that if someone...
  5. M

    Loosing coolant. Underhood coolant smell

    You've a ship of Theseus that's about to hit its 20th anniversary. Might be wise to consider which replacement/upgrade parts you'd like to either have on hand in case of failure after 20 years, or preemptively replace before failure. I've witnessed coolant leaks so small, that a magnifying...
  6. M

    Wife hit a pole....

    Ever wind up behind someone who appears to be unable to choose a lane on a two-lane road? There are already FAR too many licensed drivers who INSTINCTIVELY drive in two lanes at once by default.
  7. M

    Best flex brake lines?

    GM OE fabircated in 2001 lasted him 270k. How sure are you that GM OE parts for an '01, made in '23 or '24, are as good as they were in '01? GM has made habit of relabeling aftermarket supplier's parts as ACDelco OE. I'd prefer to just use GM's aftermarket supplier directly.
  8. M

    07+ Brake upgrade on a 00-06 NBS, is it worth it?

    Basically, the non-metallic stuff in the calipers is made of a more heat-resistant material, including the seals.
  9. M

    2014 PPV gas pedal stuck down

    AWESOME. You're wrong about the power steering, but absolutely right about the power brakes. This is (NOT the only) one of the reasons why signal throttle replaced physical throttle - The engine throttle opening and closing rates can disagree with the driver whenever ecm programming specifies...
  10. M

    Wife hit a pole....

    If my wife hits a pole, it better be mine, and she better rub it out herself ...
  11. M

    Suburban towing a Suburban

    j91z28d1, your hybrid has an Allison 2ML70 with 3.08, yea? I've no clue what that geartrain's tow rating is. Extra ATF cooling is integral to towing, but I'd prefer 3.73 w/ 6L80 & 'base' ATF cooling, over 3.08 w/ 6L80 & '2500' ATF cooling. 5.3L V8, 6L80E suv. 3.08 is tow-rated 11,000lb. 3.42...
  12. M

    Suburban towing a Suburban

    Wholeheartedly agree with this. With 6L80, that's 4th. For GMT900s, 3.73 is the tow pack gear for 6L80E pickup trucks. (4.10 with 6L90E was for 2500 stuff, and came with larger axles.) If that's too much gear (no hills to worry about?), 3.42 is the tow pack gear for 6L80E suvs. When given the...
  13. M

    Welp…. Ya Fix One Thing…..Dreaded Lifter Tick

    There are no guarantees, but you can shave your dice. May the odds be ever in your favour ...
  14. M

    Welp…. Ya Fix One Thing…..Dreaded Lifter Tick

    For 6.2L V8s? How cool / tight are you with your dealership? What do you think are the odds that they will transplant LS3 valvetrain parts into your L94? If you want to get rid of Engine Half@$$, see CMoore711's HELPFUL post above, and take his wise advice. (CMoore711, I'd've preferred to have...
  15. M

    Suburban towing a Suburban

    It's a safe bet that the CAFE MpG 'road tests' do not include steep hills. Those who only drive on flat plains seem to tolerate the axle gears CAFE forced GM to give them. 6L80E + 3.08 + long steep hill ... the greater the elevation change, the better off with 3.73. I don't disagree with using...
  16. M

    Suburban towing a Suburban

    10L80 has so much / many forward gear(s), in THIS case, 3.42 might cross diminishing returns? In the specific case of the 10L80, my guess is, it'd need BIGG tires for 3.42 to improve much of anything, because it has 7 underdriven gears to use to maximize stop'n'go & towing MpG. 4L60 needs a...
  17. M

    Suburban towing a Suburban

    Depends on which cake you want. No it isn't, not always. Don't worry, I'm about to explain it. Glad we agree on that. GM does too, by the way, but GM saved 4.10 with 6L80 for the heavier-duty stuff where HIGHWAY MpG was of less importance than durability & tow rating. Although absolutely true...
  18. M

    Suburban towing a Suburban

    3.73 will make things easier on the transmission, and improve both stop'n'go MpG when unladen, AND towing MpG. The gear was available for Silverados & Sierras, so it's not out of place. If you also get the TCM reprogrammed, the 6L80E will last MUCH longer before it needs a rebuild, even if you...
  19. M

    Suburban towing a Suburban

    Any way you can upgrade to 3.73? 3.73 is OE for GMT900 pickup trucks' towing package.
  20. M

    Question on the anti crash technology

    As someone who learned how to drive in the early '80s on an automatic, I happened to stumble upon the ability to 'double-foot' very early; as a result I am slightly more adept than most at using the brake and the gas pedal simultaneously. I bring that up to say: When you say "I can override...
  21. M

    Let's sift through every square inch of a 2013 Tahoe PPV

    Then I think we need help from a guy like 91ss. It'd be REALLY helpful to know a lot more about the pertinent details of GM springs.
  22. M

    Let's sift through every square inch of a 2013 Tahoe PPV

    Wouldn't happen to have the specs for those springs?
  23. M

    6.2 not a good idea because of issues?

    No one who bought an Escalade / Denali with a 6.2L that committed suicide is going to go after the company that made the schidty lifters or bearings - they're gonna go after GM, and are right to do so.
  24. M

    Let's sift through every square inch of a 2013 Tahoe PPV

    Either they are progressive (beehive?), or typical fixed rate springs. The shocks have as much to do with maintaining stability; they dampen undulations.
  25. M

    6.2 not a good idea because of issues?

    If customer satisfaction were top priority, GM would: 1. compare the profit margins they're making off of Escalades / Denalis, vs Tahoes / 'burbans *(Escalades / Denalis are just Tahoes / 'burbans with fancier bits)* 2. correctly assess that the 6.2L V8 is a fancier bit, from which GM profits...

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