Follow up on the 2014 Silverado/Sierra Preview - The Engine(s)

Discussion in 'In the News' started by xcel, Dec 14, 2012.

  1. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi SouthernCannuck:

    As a comparison, Ford sold over 56,000 F–Series last month with a vast majority of the F-150’s equipped with the 3.7 and 3.5L EcoBoost engines.

    GM sold 30,694 Silverado’s and 11,726 Sierra’s last month. It was not that many years ago when GM outsold the F-Series in total and they did it without $10K on the hood. I saw a base 13 Silverado w/ the 4.3L on a local lot here last month for $17K. That is desperation pricing. The new 14's do not look all that much different and the drivetrains in particular appear to be anything but advanced.

    Herm, a straight line drag race and towing are all about torque. The F-150's 3.5L EcoBoost was so much easier to drive due to the availability of "lots of it" without having to "race" it. And when raced, they ate everything up including RAM's 5.7L HEMI. At the time that is.

    We can only hope AFM works much better this time around and we should know by Detroit what the numbers are at least.

  2. phoebeisis

    phoebeisis Well-Known Member

    Maybe we will all be surprised
    and the 4.3 won't be a dog anymore.
    GM is being relegated to where Dodge was for 30+ years-"lotta 1/2 ton truck for the money"- the least expensive to buy(not MSRP- advertised price) but not the best-just good for the $$ Like the $17000 New truck Wayne mentions-

    Perhaps these are just stop gap engines-something to sell-at a profit(keep the doors open)
    until they have the $$ to design and build a worldbeater-like the Dodge?
    I can see GM not going to turbochargers in spark motors-why bother-just look what Dodge did-plain Jane V-6-300 HP- lotta gears

    And with gas cheap-Dodge will probably somewhat discount the 3.6-driving down the price of the dated GMs-yeah-GM will be Dodge for a while"lotta truck for the $$
    Last edited: Dec 16, 2012
  3. herm

    herm Well-Known Member

  4. 2RR2NV

    2RR2NV Ultimate Newbie

    yeah, can't see GM winnin the day with the "new tech" engines coming out. get real! but they do sell a lot of truck for the money. I'm hoping the Ram comes way down in price with the V6 to be easily competitive.
  5. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    A little more on the 4.3L V6...

    When the all-new 2014 GMC Sierra full-size pickup arrives this summer, its standard 4.3L V6 it will offer the most torque of any standard V6 in the segment at 305 lb-ft.

    Sierras equipped with the 4.3L will have trailer tow ratings of up to 7,200 pounds for a regular cab, short bed, four-wheel-drive model – 500 pounds more than the most capable Ford F-150 3.7L and 700 pounds more than a Ram 1500 3.6L. Sierra’s standard V6 produces an SAE-certified 285 hp and is matched with a proven, efficient six-speed automatic transmission.

    Unfortunately EPA fuel economy estimates have not yet been released.

    Like 5.3L and 6.2L V8 engines, the new V6 features direct injection, active fuel management (cylinder deactivation) and continuously variable valve timing.

    A little Pickup V6 History

    Although they share only a handful of parts with previous Sierra engines, the new V6 builds on experience gained from millions of trucks and billions of real-world customer miles resulting from a half-century of leadership in V6 engine development. In 1960, GMC debuted the first V6 pickup truck ever and offered it exclusively through most of the ’60s.

    That engine, offered in various displacements starting at 5.0L, was designed with aluminum pistons, improved cooling and a stout crankshaft and bearings designed for unprecedented durability.


    2014 Sierra models with the 4.3L V6 go on sale later this year with an MSRP of $25,085, including a destination charge of $995.
  6. phoebeisis

    phoebeisis Well-Known Member

    Wayne-as you mentioned earlier
    GM owners CONSTANTLY bitch about AFM cyl shutdown
    Claiming it shakes shudders
    and WORSE-much worse-claiming it increases oil consumption??
    Don't know just how prevalent it is??
    Some claim there is a push button disable of AFM??

    Tiny chance this will actually concern me-since if I upgrade it won't be all the way to 2007
    I'm way too cheap for that-besides I suspect I can get most of the mpg gains with a 2004 5.3 and mild hypermiling(sour grapes of course since it is mainly cheapskatism)
    Besides I need big-at least $4.25 price spike to drive down used prices.
    Asking prices are up with low fuel prices.
    Say-where is Herm??
  7. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi Charlie:

    Interesting to hear about the oil consumption issue. Never heard of that.

    The previous gen AFM in the Tahoe Hybrid did not work to well. It was so touchy as GM wanted to provide all the power and only a little of the savings. It would work for us on the highway but probably not for most. For example, a light runup to 65 mph would never need more than 50 to 60 hp yet you launch as light as you could and the 8 would be kicking in almost immediately. Even at lower highway speeds, you had to be very light on the pedal to keep it engaged.

    I suspect with the new tools and computing power, this will be much better. I have a friend at the press launch now and should provide some of the details soon.

  8. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    For comparison, my 1990 GMC truck had the 5.7L V8 rated at 210 hp and 300 tq. This V6 beats both of those numbers.
  9. phoebeisis

    phoebeisis Well-Known Member

    My 1998 5.7 255 HP-mabe 350 lb ft and it feels fast-no kidding seems quick
    and that is with the taller 3.42 rear end-but tiny 235/75 15 tires

    The 4.3 was always the motor folks bought when they couldn't afford more than a base truck.
    They NEVER chose it because they wanted better FE- the old base 4.3 probably wouldn't best the fancier 5.3 in FE

    Now it is a class leader maybe maybe bumping up against that Dodge 3.6??
    Never would have guessed GM could get what it is claiming out of the 5.3 or the 4.3
    GM owners will be happy-they really weren't looking forward to dumping their V-8s
    conservative bunch

    Wayne- oil consumption wise-I think they try to claim that the closed cyl "somehow" are allowing oil past the rings-maybe not much cyl pressure causing rings to not seal??
    That is the guess anyway-???
    Who knows??
    But some owners are unhappy with the AFM-and also claim it doesn't save much fuel
    Of course-you gotta adj the "organic controller" to save fuel-and the 1/2 ton GMs respond very well to that-surprisingly well considering mass and blunt profile
  10. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    2014 Chevrolet Silverado 4x4 at the MAMA Spring Rally

    A 5.3L V8 equipped 2014 Chevrolet Silverado.

    Really neat step built into both sides of the rear bumper. Standard on all Silverado’s but the High Country I believe?

    Cab to bed air gap seal flap. The cab to bed gap was tighter than normal to begin with.

    25.9 mpg over a short 9 mile all-highway RT drive loop.​

    Overall impressions? The interior is much nicer than the older trucks. While this Silverado was a higher trim, I was told that even the base cabs with the 4.3L V6 will provide similar niceties.

    The Active Fuel Management (AFM) system is smoother than the previous system (almost undetectable) but imho, is not as fuel efficient in the real world as the EPA ratings would suggest. With an average road speed of maybe 50 mph, the above result was obtained in moderate rain and mid 50 degree temperatures, both of which would knock an mpg or two off the mark. This 4x4 was rated at 16/22 if that helps? The 23 and 25 mpgUS highway rated RAM 1500 4x4 allowed quite a bit more on a local road course at last years MAMA Fall Rally while the 2WD HFE we drove a few months back provided a calibrated 24.9 mpg at 70 mph. In other words, the Silverado's 5.3L V8 has more power on tap than either Ford's F-150 with the 3.5L EcoBoost and RAM's normally aspirated 3.6L Pentasar in the 1500 but it is probably going to cost you more at the pump then the EPA rating differentials suggest.

    Like its predecessor, the latest iteration of AFM appears to spend far too much time with all 8 churning away even with light accelerations or at idle. Probably because of NVH but I did not feel it will live up to the 24 mpg rating it arrives with.

    Absolutely loved the built in steps in the rear bumper. No screwing around with poles and such. Grab the bed, step up and you are in.

    That aero detail between the cab and the bed was pretty cool. It only ran the sides, not the top or bottom. In addition, this was probably the tightest cab to bed gap of any truck I have ever driven. The sheet metal was stamped into a smooth curve inward as well. According to the PR rep on hand, this tight gap has not caused any problem on any rough off-road course the truck was driven on unlike the Tundra a few years back that almost destroyed itself on a simple alternate bump road course. In other words, the all-new Silverado has one hell of a strong frame underneath it.

  11. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    GM announced the 4.3L V6 engines EPA rating and they are nothing to write home about :(

    The all-new 4.3L V6, standard in the base 2014 Chevrolet Silverado and GMC Sierra, is capable but falls short of notoriety.

    The 4.3L in the 2x matches the RAM HFE’s 18 mpg city and offers 17 mpg city in the 4x4’s. The EPA highway estimates are 22 and 24 mpg for the 4x4 and 2x variants.

    The 4.3L V6 provides a payload rating of 2,108 pounds and tow rating of 7,200 pounds when equipped as such.

    Looks like the 2013/2014 RAM 1500 is going to continue to rule the roost for the rest of this year.

  12. phoebeisis

    phoebeisis Well-Known Member

    Pretty much same-almost-as the 5.3??
    So the 4.3 vs 5.3 story is unchanged for the last 10 years??
    If you can't afford-new- the 5.3 and the upgraded trim it comes with
    Buy the base model with the 4.3-?
    Well you can probably get a 4.3 for $5000 less than a 5.3-it is always the cheap bait and switch model.
  13. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi Charlie:

    I am not bitchin to hard as 18/24 is a lot better than 12 from a Titan or something from the old days?

    I was hoping for more however.

  14. phoebeisis

    phoebeisis Well-Known Member


    True-my 1998 2wd Suburban-5.7 EPA 12/17
    My 2004 Titan-about the same 12/17- real life about the same hy mpg- but the Suburban actual is about 1mpg better city for some reason-despite being 400 lbs heavier-maybe the gliding GM transmission.
    My 2001 Tundra V-8 got much worse hy mpg-18mpg 60 mph-spun 2000 RPMS 60 mph-and had wide 265/70 16 tires-sat kinda high also
  15. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    2014 Chevrolet Silverado LT Review

    The Show Me Stance.​

    First Fill

    Initial top off at the Gurnee, IL Shell

    Initial top off took 6.234 gallons after arriving full and driving 29 miles at 28.9 mpg displayed. 4.3 gallons after first click.
    The 26 gallon tank apparently can hold around 30 gallons. That will provide some extra range ;)

    The Route

    The Results

    Final top off at a Fort Wayne, IN Shell after 211 actual miles with 6.297 gallons = 33.5 mpg vs. 34.6 mpg displayed.​

    Some context to conclude the 2014 Silverado Truck Review...

    2014 Chevrolet Silverado LT with the really nice 43L V6 has provided a pretty decent 30.0 mpg (29.0 mpgUS actual) over the course of 350 miles of Interstate and 230 miles of city travel. That is pretty hot for a truck of this size.

    To maintain 40 + mpg or even 30 mpg by evoking AFM (2-cylinder deactivation), you only have a maximum of about 28 HP available. This is a lot of truck to move with that little power available. If there were 40 HP available under 4-cylinder mode, the average owner would receive much better FE.

    Will it beat the RAM 1500? With the right driver able to balance on a knife edge below 36% load in 4-cylinder mode, yes. Average driver? No.

    Pups really likes the large driver/front seat passenger volume and even the sight lines for such a large vehicle.​

    Nice driver and central displays (optimal), control stalks, and headliner material. Abundance if 12V, USB outlets, and optional 120V outlet too. Soft padded arm rest and somewhat padded window sill are also comfortable. I also liked the soft padded lower seat cushions.

    New exterior is bolder and much nicer looking than the previous generation. Large chrome grille is both tough looking and modern.

    Tom Appel of CGAutomotive: “You could swap that truck for the entire inventory of that Dollar Tree.”

    It’s tight back there and not meant for an adult for sure.

    I also like the damped tailgate.​

    Would really like to see BringGo in the 2014 Chevrolet truck. Why pay for a large screen that does not have NAVI in it? BringGo from the Spark for $50 and we are good to go.

    Negatives include a very rich upfront price, lack of a telescopic wheel on the LT ($36,000 and no telescopic wheel?), double cab rear seat room is not large enough for even little kids (buy the Crew Cab), and it is so long it is very hard to park in a std. size parking spot.

    Steering could be tightened up quite a bit. Trucks do not need sloppy steering just because they are trucks.

    Wish the dash were soft touch like the door plastics.

    All in, a nice truck and the 4.3L is both powerful and fuel efficient. Would wait a while before purchasing however. A 6-passenger Crew with the same drivetrain should be available for < $30k by this time next year.

    A bit long…​

    I can only imagine what this bad boy would offer (Fuel economy wise) with the base 17's and some low RRc all-season radials vs. the 18" Goodyear Wrangler truck tires shod on this thing currently. I hope to actually find out one day ;)

  16. phoebeisis

    phoebeisis Well-Known Member

    Pup looks like a GM dog.
    Very pleased looking in that GM!!
    34 MPG-yikes who could have guessed that in 2000 or so when the rating on the 5.3 was 12/17-

    What will it do at 60 mph?
    Those 18"-are at least AS not all terrain,right ??
    Well Pup seems to prefer GM!

    How much do you think the 4.3 will beat the 5.3 by?? 1 mpg??
  17. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi Charlie:

    I think the 4.3L will break the 5.3L by a lot more than 1 mpg. It is however like doing ballot on a knife edge to hold 4-cylinder mode in these trucks. Temperatures below 55 degrees and the tires RRc rises which in turn almost eliminates AFM mode. My drive of the 5.3L was not all that impressive although it was raining and cold for that one too.

    The hp available under AFM just is not enough. 40 hp would suffice as most can keep their foot out of it for that. 28 or so hp and LOD at 36 or less is simply not enough power to keep these big monsters rolling down the road without some very attentive driving. However, when the stars were aligned (temps in the low 60s), this truck was over 42 mpg for the first 60 miles after the initial top off and I was cycling in a DWL pattern between 50 and 62 mph. That is one hell of a big number for highway travel in a brick.

    Saying that, the 4.3L on all 6 is no slouch and 30 mpg was easily doable other than around town.

    Pups really likes trucks for some reason as she was hopping up and down at the door to get into it.

  18. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    And topping off one of these bad boys? Expect at least an hour as it took forever with shaking the truck after a few hundredths of a gallon when in again and again and again hundreds of times. :(

  19. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    The Silverado: 12.5 million miles before the name goes on

    The 2014 Silverado underwent over 12.5 million miles of durability testing before the first customer received their keys.

    From the scorching desert of Yuma, Ariz. to the sub-zero cold of Northern, Ontario, and the outdoor extreme testing at GMs Milford Michigan Proving Grounds, the all-new 2014 full-size trucks lineup completed more than 4 million miles of combined vehicle durability testing and 8.2 million miles of real-world mileage.

    Validation and durability testing pushed the trucks to their limits before they went into production.

    The trucks proved their mettle by traversing the Belgian blocks, splashing though the off-road-simulating grit trough, climbing and descending a 30 percent grade and driving at high speeds.

    Grit intrusion is a challenge for any off road vehicle. The grit trough test ensures the trucks have enough sealing to protect bearings and key suspension points, while a trip along the dust road helps determine all seals are functioning properly and that dust does not contaminate the bearings or other moving parts.

    Some of the key durability improvements from the previous generation trucks include:
    • A frame formed from high-strength steel to ensure it will not crack, even when loaded to full capacity
    • New four-wheel-disc brake system with Duralife brake rotors offer up to double the service life, along with brake-tuning revisions that improve pedal feel for more confident braking performance on any driving surface
    • Anti-chip coating on the lower body side for extra protection from stones or gravel
    Just a few more things someone may like to know about one of America’s best pickup trucks.

  20. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    While Ford made hay over its $50 Plow Prep kit with little in the way of what is included, GM's Plow Prep Kit was fully detailed by Tom Wilkinson, Trucks Communications Manager for the Silverado.
    That is a lot of equipment for a very reasonable cost.


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