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L86 All Terrain

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L86 All Terrain last won the day on January 3

L86 All Terrain had the most liked content!

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About L86 All Terrain

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    L86 All Terrain

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  • Drives
    2015 Sierra AT SLT L86, 2018 Sierra Base CCLB 2500HD
  • Interests
    Outdoor things

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  1. What did the TSB say the problem was? If GM issues a TSB but not a recall on a certain persistent or common problem, they usually address the problem or finalize a solution before the TSB is issued to the "public". When my 8L90e had a delayed Reverse shift, the TSB described that the stator shaft in the trans was bad and a poor design, they revised that part once they found out it was a problem before issuing a TSB. They took my old 8L90e and gave me a reman. with the upgraded stator shaft. I am willing to bet if you go through the TSB it will tell you the cause and solution. Usually they wont issue a TSB if they don't have a concrete solution to the issue (except for the Chevy Shake). They probably state it happens at low speed due to loss of vacuum, but the brakes are still function, that way they don't have to issue a safety recall and fix 3 million trucks. Recalls can kill a automakers quarter, so don't expect them unless you are in danger. My brother's F150 just went for a seat belt recall, the assembly can catch fire? And the block heater that can also catch fire. So the grass isn't exactly greener on the other side. Edit: I see you posted the TSB, new part number supersedes the original Vac pump, therefor it has been redesigned or altered. I wouldn't sweat it too much. Old PN: 12659655 New PN:12669488
  2. If you want to find the answer, go to the Dish Soap isle at the grocery store. Notice how there are like 10+ brands? All fighting for shelf space begging you to pick their brand? Now turn each one of those bottles over and read the parent company or "importer". You will notice there are only 2 large parent companies that own and sell these brands. Why wouldn't they just sell Dish soap under Procter and Gamble or Johnson and Johnson you ask? The answer is probability, if J&J has 10 soaps under various brand names and P&G only has 2 brands, which company has a larger chance of getting selected by you at the store? This is the same story in all industries. I have a trucking and contracting business and a small sand and gravel operation, both companies do similar tasks and one is the Parent of the other, but I have a higher chance that a customer will select one of my firms than the other guy.
  3. GM to offer a lift kit for the 2019 pickups.

    Yeah I just looked it up, even rear shocks. Sounds like a good deal, I always buy the All Terrain trim anyway (AT4 now) so I will end up with one eventually.
  4. You wont be disappointed with that motor, or 3.42 gears in the NHT. Congratulations, nice truck.
  5. Better MPG on 93?

    It is your wheel offset that is beating you up. You need a offset around +18mm to clear a large tire with no rub, even with the larger wheel wells on the new T1. I would try trading the wheels for some with a more neutral offset if you are deeply concerned/don't want to cut things, or have a tire shop mount a 305/55R20 and see if that helps. My K2 fits a 33x12.5 which is wider than both, but not as tall as your tire also that is on a +23mm offset, not a -24.
  6. GM to offer a lift kit for the 2019 pickups.

    $1300 for the kit? Must be a true 2" suspension lift, upgraded axles, struts, UCA's and UBJ's then. If it is just a strut spacer and rear block, you are going to be ripped off HARD. Like, over-paying by 10x, ripped off. I always had the dealer install my level kits, about $700CAD installed. I put one on with my brother on his 2018 F150, after seeing how it worked and the new control arm angles, I don't think I will ever buy one again. When the suspension unloads the UCA damn near connects with the strut spring, like not even 1/8" of clearance. Makes me think the UCA will get jammed up in the strut spring in the event of a hard hit. My Sierra is no where near as close, but I can easily see a true lift being a much better, safer, and less maintenance option.
  7. GM Builds Silverado Entirely From Legos

    I like the body lines better on the lego truck, it wont rust as fast either. When can we order?
  8. 2019 6.2L badge

    Get some V6 badges on it then go shock some pony-car owners. Sleeper style.
  9. Probably a bad ground, I would be furious to not get a loaner on a brand new truck. It's the GM's issue, they could have at least give you the keys to something in the Used section. To spend that kind of dough and have them tell you that you cant have a vehicle all weekend is a bit insane. Obviously that dealer doesn't care if you buy there again.
  10. Range Technologies

    Yes, the higher trim models SLT/LTZ + have DFM, the more basic trims have the old AFM system as far as I have been informed. Is it driving you crazy? A relative has a F150 that shuts off at a stop sign, he hates it and it drove me crazy on the short ride through the city. Probably uses more gas to restart the truck than it would idling for 5-10 seconds. I have class 8 transport trucks, they will only burn 3/4 of a gallon per hour idling, at that is a massive 15L engine idled up to 1100rpm, so you cant tell me a 5.3L is sucking back 1/4gal per hour at idle. They are now looking for savings where there aren't any, the EPA needs to back off these guys a bit, you can only make a 5500lb truck so efficient. We aren't that far off where we were in the 90's in terms of mileage.
  11. 6 Digits: Clyde the K2EC at 100,000

    All modern DI engines do this. Some worse than others. Direct Injection increases crankcase pressures which send misted oil into the intake tube. I would be curious to follow someone with a catch can and see it that eliminates or reduces this. I was following a Hemi the other day when he passed a guy, it spelt like I was following a 1973 Ford with a bad head gasket and worn out piston rings.
  12. Better MPG on 93?

    Giving the engine a higher octane (more resistant to pre-detonation, knock, or early combustion) allows the ECU to advance the ignition timing and variable valve timing. Advanced ignition timing leads to a more thorough and complete burn of the A/F charge, which means more power per RPM. This means the engine can become more efficient and make more HP per gallon. This can easily work the other way also, if you are making more power, and using it, you will burn more fuel. If you are loafing around just as easy on premium vs. regular, you should in theory get better mileage on premium but I would not expect the savings to pay off the difference in the price. These new LT family DI motors have a high compression ratio, even the 5.3L L83 is a 11:1 with the L86/87 being 11.5:1. Consider that compared to yesterdays 5.7L Vortec 350cid engine, which was at a 9.5:1 compression ratio, and the hotrodders ran 91+ in anything over 10:1 in the 90's. That alone is enough to convince me to use 89+ oct or E85 if available at all times.
  13. I have filled up with 87 about 5 times with my 6.2L with no easily-noticeable knock or loss of performance/mileage. You ECM will retard the ignition timing for the less potent gasoline. It is a 11.5:1 compression ratio, so I recommend premium or at least midgrade on a daily basis. But in a pinch it will not hurt the engine. It costs me $8 more to fill after roughly 10 days with premium in Canada, so less than $1/day more. If you can afford a $60,000 truck, the fuel difference is not a concern. You will burn much, much more gas living with a 6L 2500 on a daily basis vs. a 6.2L 1500. 12mpg for 2500 vs. 17mpg for 1500. If you drive 15,000m a year, you are going to use 1250gal with a 2500 and 880gal with a 1500. At my current pump price, that is a $1,776 saving, about a $1,615 saving when you factor in the price of 91 over 87 octane.
  14. Winter question

    Yes Northern Ontario, directly above Minnesota, further north than GM's cold weather testing facility in Kapuskasing Ontario. My 1500 trans temp runs around 30-50c(86-122F) in the winter depending on how long of a drive and payload. With the wind chill factor we are in the -40c (-40f) range for a couple weeks (right now) through January. Makes things miserable, the big diesel motors don't like to start, brakes on the trucks are trailers are frozen on every morning, air valves on trailers get moisture and freeze up so you are pouring hot water on everything just to make stuff work at the start of the day. All our diesel stuff has winter-fronts, auxillery engine block heaters (Espar/Webasto), plug-in block heaters, DEF tank blankets and heater, oil pan heaters and ether injection(on the older non-common rail stuff). But the gas engines have no issue. I wish all the big US companies like Caterpillar, Kenworth, Cummins, John Deere etc. would design and test their stuff in our climate, I would make for better products and less headaches for us Eskimos.

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