Scotty if you had to say one thing nice about GM trucks what would it be
As far as I know they don't have rotating knives that spring randomly out of the dashboard to cut up the occupants.
{pear}:laughingoutloud:
Haha, I snorted at that one.
I probably shouldn't give them any ideas!
{pear}:wink:
They used to be really good.
@imperator Yeah that is also what I was thinking, that series from like 88-98 were tough as nails. I know a lot of people that drive them 200k+ without any issues. The square bodies were pretty good too. Cheap to fix the engine or transmission, especially compared to ones made in the last 20 years.
easy to work on
comfortable seats and ride
Long live the LS-series of small-block engines. I’ve owned two GM products with the LS and LS-based V8 engines and they are as reliable as they come. Easier to work on than the V8’s on Toyotas and Lexuses.
What makes them easier to work on?
Hey scotty what is the most reliable truck on the GM truck line
The only pickups with passable engines are the Heavy Duty ones, and even those are direct injected.
And I wouldn't consider a money-pit GM truck unless I absolutely needed the towing capacity.
Trucks from the 1970s and before you really couldn't kill until their transmissions went. My Pontiac Catalina is from the 70s and it's a full-size car. I'm a Ford guy traditionally, but I've always had a thing for Pontiac.
Other than being a pig on gas, it should be ok
It has also become obvious in the last few years that GM’s small-block has been subject to increasing sophistication. Additions such as gasoline direct injection (DI), variable valve timing (VVT), and Active Fuel Management (AFM) are the more significant advancements benefiting the Gen V. This L8T engine incorporates all of these, except that it will not be fitted with AFM (or the latest passenger car and light truck advancement now called Dynamic Fuel Management). The L8T will not include either of these cylinder-deactivation valvetrain control mechanisms.
I'm not happy about seeing direct injection though. That's not going to help durability.
Apparently it's a bad oil burner too.
GM stated that 1qt of oil per 100 gal fuel should be considered "normal".
https://static.nhtsa.gov/odi/tsbs/2022/MC-10211061-0001.pdf
and unfortunately, the engine is going to come attached to a GM truck, which even the HD models have plummeted in quality
I’d say Scotty is spot on, and tells it like it is regarding GM trucks. My buddy has a 2019 Chevy Silverado. He is currently on his 3rd engine.
I don't think Scotty or anyone here would recommend a GM truck as reliable. Most of the new ones are turbocharged and smaller displacement. On top of that, many come with the GM-Ford 10-Speed transmission, which has been problematic.
only the light duty ones are turbocharged, and even on those a naturally aspirated engine is still available as an option. None come with the GM 10-speed standard.
That’s good to know.
Good for OP to know too.
It appears almost as if GM dropped that transmission, there have been nothing but problems with those 10-speeds. It's like it's over-engineered - literally.
Good to hear they dropped it!
They dropped it (the 10L80) a long time ago as Scotty explains in this 3 year old video
https://www.youtube.com/watch?v=dqQa5sFYzgo&t=58s
.
However the 10-speed "Allison" transmission (10L1000) they have now is showing problems too
.
https://www.mylemon.com/lemon-law-blog/gm-10-speed-transmission-problems-what-you-need-to-do-now/
https://www.motorbiscuit.com/problems-chevy-silverado-hd-10-speed-automatic-transmission/
.
https://www.youtube.com/watch?v=zk-Snj-pqic
Are the “Allison” and the Ford-GM 10 speed the same? Or slightly similar? I’m getting mixed information. Some imply they are different transmissions. And some imply it is the same (Wikipedia). Could be bad linking on Wikipedia’s part.
There are three 10 speeds. All cousins. The Hydramatic 10L80. The 10L90 "Supermatic", and the 10L100 "Allison" .
"although the 10L1000 looks much like a 10L80, it is much larger with a higher torque capacity"
"GM asserts the 10L1000 is entirely separate in design from the smaller 10L80 built for 1/2 ton applications"
Who is implying? What wikipedia article?
https://gmauthority.com/blog/gm/gm-transmissions/10lxx/10l80/
https://gmauthority.com/blog/gm/gm-transmissions/10lxx/10l90/
https://gearsmagazine.com/magazine/darn-that-is-heavy-servicing-the-gm-allison-10l1000/
.
"we are starting to see some issues with one of the clutches in the 10L1000 transmission ... The support design lends itself to the clutch failure issue you may be experiencing, as the integral backing plate does not fully support the clutch components (figure 3). The minimal support leads to clutch “flex” issues which leads to a burnt clutch (figure 4)... I am sure it will not be long before GM redesigns the support, as this is a common issue. "
The Wikipedia article on the Silverado. It hyperlinked the Allison transmission to the Ford GM 10 speed page. Which makes sense if they are cousins.
Thanks for the clarification that they cousins, btw.
most reliable truck on the GM truck
Assuming you mean current models, it's really "which one is the least unreliable".
The main 2 models GM bases most of their crap is the Silverado and Colorado,
The new Silverado is known to be troublesome, and the new Colorado is based on the Silverado...
So GM Truck reliability is a race between "bad" and (at best) "we do not know yet".
This is ignoring electric offerings cause no one on earth knows how that's gonna even perform.
How much time do you have?
GM is the second largest American car manufacturer.
I thought it was the largest. Ford and Chrysler are smaller.
Yeah, I thought they were the largest too, but my quick googling had them slightly behind Ford. That was 2022 data, or maybe that source was bad.
what is your definition of "largest"?
That's surprising, I thought GM was still way above Ford. Most of their products are made overseas anyways, American cars are only a title. Honda is Japanese and makes Civics in Lima, Ohio.
I figured they make most stuff in the US and outsource them to other countries because labor is way cheaper. The rust belt is the rust belt for a reason, lol, though there are now loads of factories in the south, now. Hopefully they'll stay put this time. I wouldn't hold my breath, though.
Hey scotty what is your thought on the GM 6.6 gas engine is it reliable
Hey scotty what is the most reliable truck on the GM truck line
The previous generation Colorado with the 2.8 diesel was fine. But not the v6 gasser with the 8 speed transmission. Too soon to judge the new ones; fit and finish is better, but mechanicals are the question.
In the half-tons: the turbo 4 is interesting, but I wouldn’t trust it to run very long under load. The 5.3 is OK , but just OK. The 6.2 is a beast but long term reliability is reportedly not great. I personally invested in a Sierra with the 3L Duramax because I think it will be reliable (and I’m willing to absolutely keep up with maintenance). Just over 40k without any problems (knock wood). But there are not enough high mile trucks yet to really know.
The 3/4 tons are ok. The Cummins Rams are better.
from what I'm hearing the 5.3's and 6.2's are terrible. Lifter failures soon after purchase.
https://www.bitchute.com/video/KNl8P9sxdSZq/
You’re right @mmj, the lifters are the biggest flaw with those engines, and is why I personally did not buy a gas GM engine. Although, the 5.3 is otherwise a pretty good engine, and I wouldn’t fault someone for buying one (especially if they disable the cylinder deactivation). But what’s the alternative? Maybe the Tundra is better, but even that truck has had issues. Gotta pick your poison.
My brother's Silverado 5.3 AFM was disabled from purchase, and it still threw a rod at 60k.
If someone only wants a truck for the look, then I'd say, ask yourself if the headache is worth appearances.
Pickups are totally useless in my experience anyway, unless you're hauling bales of hay or something.
If you actually need to haul stuff, consider a cargo van instead (no AFM last I checked, though that might have changed).
Or diesel as you suggest. Or Mercedes. They may cost an arm and a leg, but at least they don't grenade when your business depends on it.