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Originally Posted by Featherweight6555
Originally Posted by TrueGrit
Originally Posted by oldwoody2
The number of pickups going up & down my road that clearly have never hauled anything more than golf clubs is amazing. My wife says it's related to small MANHOODS !!!!!!
How'd she figure that out?
Ouch!
PRETTY GOOD QUESTION ???


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The 2.7 8-speed transmission has issues according to the Web, the 10-speed is supposed to be a good one joint developed between Ford and Chevy and is in the 3.0 diesel.


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Originally Posted by kk alaska
The 2.7 8-speed transmission has issues according to the Web, the 10-speed is supposed to be a good one joint developed between Ford and Chevy and is in the 3.0 diesel.

early 8-spd had some rough shift clunk issues that annoyed people, all sorted by about 2020, so that's old news

important to know they were merely annoyance issues...not problems in terms of function or reliability, just cold 1-2 shift clunks that's all, no failures etc. the 10 Spd has it's own [bleep] you can read about also

here's the good news, the 8-spd is everywhere and it's lighter, and with the broad torque curve of the 2.7 it suits it better, on all the top 3-4 gears it's a 500 rpm gap at highway speeds, ideal really, 1-downshift at a time it does, not like the 5.3 which will go into scream mode on cruise hitting a hill towing lol....2-3 gears at a time, no thanks...anyway, anyone curious should go spend some time in the 2.7 8-spd, it's a very well set up combo

I drove the refresh 10 Spd 6.2 for a few weeks before getting my 2.7 8-spd refresh and I never even noticed the transmissions were different, when I read about it weeks later I had to think back and try to remember if there was a difference

that internet sure can hang onto things eh? it's a non-issue, I'll take the 8 over the 10 7 days a week and twice on Sundays....less is more the formula for the 2.7....the 8 is the right transmission for it

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Buddy has a Colorado with the 4 cyl. engine, says he wishes he bought one with a bigger engine. Only reason he went with the 4 cyl. is that was the only red one the dealer had on the lot. Adequate power is more important to me, I don't care what color my vehicle is though I wouldn't have one of the current battleship grey models.

Last edited by gunswizard; 03/01/24.
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Originally Posted by gunswizard
= I don't care what color my vehicle is though I wouldn't have one of the current battleship grey models.

Seems like you really DO care about color. rayciss against the greys...

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Hunts I don't.much care for the Grey color either..your last.new ranch truck was a Ford with the 7.3 gas or a 6.2 ? how do you like it?mb


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'22 Chev 3500 with the 6.6 and 6 spd auto and a '15 F-250 6.2, 6 spd auto.Love the chev motor and trans but don't care much for the truck. Like the Ford but wish it had the chev drivetrain.....

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I guess that I don't see the need for a 10 speed automatic transmission if the engine has enough power and torque. Are those upper shift points just final drive over drive gearing ratios? The V6 cars we drive are 4 and 5 speed and the V8 truck 6 and they all run at under 2,000 rpm on the highway and seldom downshift here in the flat lands. Lots of us grew up with three speed transmissions and I remember an old dodge a kid at school had that was a 2 speed push button transmission. Doesn't all that shifting with the newer transmissions bug you a little?


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Huntsman 22 thank you , I been thinking of a 3/4 ton with a 6.2 or 7.3 for pulling a 30 ' travel trailer..mb


" Cheapest velocity in the world comes from a long barrel and I sure do like them. MB "
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Originally Posted by gunswizard
Buddy has a Colorado with the 4 cyl. engine, says he wishes he bought one with a bigger engine. Only reason he went with the 4 cyl. is that was the only red one the dealer had on the lot. Adequate power is more important to me, I don't care what color my vehicle is though I wouldn't have one of the current battleship grey models.

In the midsize new Colorado/Canyons you can get the base grandpa tune with about 237 hp and 259 ft/lbs torque. Then there is the z71 trailboss middle tune of 310 hp and 390 ft lbs and then the zr2 tune that adds 40 ft/lbs to that. With also ability to buy those 40 ft/lbs after if you got that middle tune.

You cannot upgrade the grandpa tune models.

Did your buddy buy the grandpa tune?

He can’t get a bigger engine just 3 different levels of boost, 10 psi, 22, psi and 28 psi...pretty sure those are the current numbers. The grandpa tune should be the fuel economy and longevity champ. It’s aimed at fleet buyers and the retired fuds will likely catch on. wink

And yeah 95% of vehicles are bought on looks, only 5% of us care more about the objective.

Last edited by stinkycoyote; 03/05/24.
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Watched a video that had an engineer from GM talking about these engines. He recommended the mid tune for longevity, over the base tune. He said the base engine had smaller and lighter parts in it and it would not stand up to much abuse. The mid and top tunes are built much heavier and are built to last. So there ya have it.


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Yeah saw that. What I remember was that he said don’t tune the base up as they left out certain things that weren’t necessary for the base power levels. And that if you did try to tune it up things would break. And yeah he said everything from the top tune is in the middle tune so no worries about going from middle to top tune with their little reflash money grabber option. The base tune will last as good or better just don’t ‘chip it’ lol.

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kk alaska

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You'll see more of them rattle apart. That long stroke, and lack of inherent balance that you get with the inline 6's, I would not rev one of the 2.7's beyond 5000 rpms.

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A casting defect from a certain batch from 2023. They've been building them since 2019 and in half tons and Cadillacs from then to now. So their mold developed a problem at some point and they are taking care of it. No big thing. People have been salivating for 5 years trying to find some sort of weakness in these engines, but nothing, not a common failure of anything nor common warranty item...the 5.3/6.2 are green with envy lol.

Well done to chase it back and get things replaced. He couldn't find an actual online failure report. Silver lining is right and does sound like a proactive move by GM. Well played. Buddy cracked me up, went from doom and gloom to rosy then back to doom and gloom. It's not slimmed down aluminum etc. lol...buddy cracks me up, still guys talk about this engine and haven't researched much at all, hardest cylinder linings in the world. Their engineers said it's one of only 2 engines every that they couldn't make fail/sieze in their torture testing.

Remember, they knew...if the 4-banger had issues in half ton platform...it would probably spell the end of GM so this thing is built considering this very reality. You can't introduce a 4-banger in a half ton to V8 addicted AMERICANS without going full out in development and testing.

So...buy with confidence folks.

Mainer....better watch that video before jumping to conclusions you fkn big twatwaffle ;), none have rattled apart lol. Go drive one...smooth baby and don't worry you don't have to rev them past 5000, screaming up a steep hill way too fast with a trailer I think I might see 4500 briefly...all the power is down lower than that, peak torque is 3000 but it's square from 1500 to 4000 or more. They've already been out for 5 years. The video even said he can't find any reports of a failure due to this. It's a batch run in 2023 they've figured out and are handling it like champs.

Last edited by stinkycoyote; 03/14/24.
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well look at that...it was 12 whole trucks

[/url]

[url=https://www.gm-truck.../#google_vignette]12 whole trucks, lmfao


take it back Mainer wink

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I had seen quite a few days ago, that it was an isolated , small number for engines.

They did good, very proactive. But until a failed engine is inspected by an independent shop, nobody will truly know what's going on, or the extent of the problem.

You'll see more of them rattle apart......

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none have rattled apart, you're spreading misinformation based on assumptions, I got you though

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They don't place the 2.7 in a Tahoe or Suburban....Most likely for good reason.

Addition: A friend is a Chevy dealer, he said GM keeps shoving the 4 down his throat for his floor plan. Reason being, they are cheaper to make, yet he had to charge the same. Said they run well enough….but his mechanics say go with the V8 if you are in for the long run.


Addition2: Friend has a 4…goes through a quart every 1500. GM says that is normal. His highway MPG isn’t any better than my V8.

Last edited by battue; 03/23/24.

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Originally Posted by battue
They don't place the 2.7 in a Tahoe or Suburban....Most likely for good reason.

Addition: A friend is a Chevy dealer, he said GM keeps shoving the 4 down his throat for his floor plan. Reason being, they are cheaper to make, yet he had to charge the same. Said they run well enough….but his mechanics say go with the V8 if you are in for the long run.


Addition2: Friend has a 4…goes through a quart every 1500. GM says that is normal. His highway MPG isn’t any better than my V8.

The 2020 GMC 1500 I had with the 5.3L, 60,000 kms and a bent rod and collapsed lifter…any better?


Rob
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