GM recalls 721K trucks with 6.2L engine

[Renze]

So we have Toyota with basically the same problem in their 3.5 TT motors.

GM deserves to go out of business if their solution is this pathetic.

GM gets government bailouts. Toyota not. Maybe thats whats wrong with Detroit... And why Europe doesnt buy from Detroit..

 

[part-time-Farmer-NC]

For me depends on if I am hauling my boat or not. With the boat 13mpg or about .22 cts a mile @2.90 a gallon. I haul the boat/mule around often just weekends. The other 85% of my mileage is about 22-24mpg or about .131 cts a mile using 22mpg. I haven't done an actual mileage per tank on it, which is a better overall more accurate number.

Using say 25mg for diesel I think I last saw it at 3.47 a gallon its about .138 cts a mile Not sure what the mpg for hauling my boat/mule around would be if I had a diesel. But just driving around its nearly a wash but cheaper in gas costs alone. 13,181.00 per 100K miles vs 13,880.00 for diesel.

Also adding the def as required, no idea what that costs there is per mile.

Math just doesn't equate to a savings for me.

 

[part-time-Farmer-NC]

I buy vehicles 10 years old when the well used ones of that build have proven reliable.

Buying new vehicles doesnt automatically mean you get less problems

Ditto, usually for me too.

 

[Hay Dude]

BIL just bought a 2024 a few months ago. I believe it has the same motor.

With diesels, its not only the upfront costs of the motor upgrade, but every time at the pump. Around here its about 50-60 cts a gallon more expensive and more frequent oil changes. Most people never realize the savings as they trade out the vehicles after 4-6 yrs.

I do love a diesel though, especially the looks of a dually. Just can't justify the extra costs.

The oil changes are not more frequent anymore.

 

[part-time-Farmer-NC]

The oil changes are not more frequent anymore.

Ah. Didn't know that. Everything I had read must pertain to the older models I guess. It has been about 5-7 yrs since I ran the numbers (when choosing my next ride). The DEF thing is a thing I personally don't want to have to deal with too. Which is why should I go diesel I would opt for an older model.

 

[Hay Dude]

For me depends on if I am hauling my boat or not. With the boat 13mpg or about .22 cts a mile @2.90 a gallon. I haul the boat/mule around often just weekends. The other 85% of my mileage is about 22-24mpg or about .131 cts a mile using 22mpg. I haven't done an actual mileage per tank on it, which is a better overall more accurate number.

Using say 25mg for diesel I think I last saw it at 3.47 a gallon its about .138 cts a mile Not sure what the mpg for hauling my boat/mule around would be if I had a diesel. But just driving around its nearly a wash but cheaper in gas costs alone. 13,181.00 per 100K miles vs 13,880.00 for diesel.

Also adding the def as required, no idea what that costs there is per mile.

Math just doesn't equate to a savings for me.

Def costs me about $10/month based on 12,000 miles driven/yr.
Maybe one 2 gallon jug a month.
It’s a tiny expense compared to what I see other spend in pick up windows, soda, junk food, etc.

It takes about 5 minutes to add and it’s very easy.

 

[Hay Dude]

Ah. Didn't know that. Everything I had read must pertain to the older models I guess. It has been about 5-7 yrs since I ran the numbers (when choosing my next ride). The DEF thing is a thing I personally don't want to have to deal with too. Which is why should I go diesel I would opt for an older model.

Its not the frequency of changes, it’s the cost per change being higher. Diesel filters and extra oil costs a little more.

For me, it’s a matter of GCWR. No gas truck can pull what a Cummins can, and more importantly, last as long pulling the higher weights.

If you don’t tow high GCWR, gas is a better choice.

 

[WM75Guy]

I paid $95 to get my 3.0L Duramax serviced at the GMC dealer last Saturday, new Service Manager must have used the gas motor coupon. That included rotating the tires. With their service special coupon the 6.2L shows to be $109.99, so roughly the same as the diesel. Even using the diesel coupon is no big deal. All my vehicles get serviced once or twice a year so it is not a big hit on the wallet. Plus, I get points on my GM Owner's Rewards account and my GM Card to help pay for it.

 

[sd455dan]

No, there is not a new design, it is the exact same component design, just now with better surface finish on the crankshaft, and no debris left in the oiling passages. IE, basic quality control.

GM does not produce and keep an inventory of thousands of old spare engines just in case. You may have heard that in early failures of these '21-'24 6.2L engines, there were simply not any new spare engines available to swap in.

If you get an engine swap now, it is not some old leftover engine that will have the exact same issues (I mean, it always still could, but any replacements is now a NEW/'25 version).

That super thin 5W or 0W-20 weight is a Horrible idea for under/Non polished cranks, what happened to micro-polished bearing surfaces and washing the da-n blocks out. Sounds like an efficiency "expert" engineer- bean counter and short term profitability, won again over repeat customers because of long lasting quality and reliability.

The damage to brand is far worse than the extra expense, I mean What does "We are Professional Grade" Mean?

I predict the companies using wet belts to drive oil pumps will be making the news more frequently when age and miles stack up as well for Ford etc.

 

[mrmikey]

I predict the companies using wet belts to drive oil pumps will be making the news more frequently when age and miles stack up as well for Ford etc.

Yup, another ridiculous, money saving idea not to mention the size of it. I've seen bigger belts on a sewing machine.

 

[deezler]

If you knew the REAL reason for this problem, you would not be shocked, but angry. Think Boeing doors and early ghosted parts. I worked for the company and watched it all start falling apart. J.D. learned a lesson in this, too, a while back. Funny as it gets. Think fake engineering drawings designed to throw off the Asian copy-cat clones.
If your product requires critical parts, make them yourself under a skilled watchful eye, not a Venn diagram staff..

Well I think you need to tell us the real story now, lol.

Sounds like you are insinuating that GM made fake drawings and then accidentally used them with suppliers? Very hard to believe.

 

[sd455dan]

GM gets government bailouts. Toyota not. Maybe thats whats wrong with Detroit... And why Europe doesnt buy from Detroit..

They likely won't be bailed out again. Enough.

Def costs me about $10/month based on 12,000 miles driven/yr.
Maybe one 2 gallon jug a month.
It’s a tiny expense compared to what I see other spend in pick up windows, soda, junk food, etc.

It takes about 5 minutes to add and it’s very easy.

That is a Whole lot better than what RAM was doing in 2012 with the Cummins. My nephews oil with a 1/4 the miles on the engine would be black within 1000 miles My 03 can still see through it at change time, He was changing it early because it would end up a quart over full before the recommended change, every bit of that was diesel fuel that emissions requirements were adding to burn the DPF out. Then the dealer says at oil change just "short" the oil fill by a full quart.

Yup, another ridiculous, money saving idea not to mention the size of it. I've seen bigger belts on a sewing machin

Yeah it is not like anything "bad" can happen when the belt teeth strip off and or the belt breaks.

 

[mrmikey]

Here's an interesting video about wet timing belts. More on Europen 3 cylinder turbo'd engines but the information about the rubber belt is spot on. least IMHO.

 

[DarkBlack]

Engine factory debris? Baloney.
Manufacturing debris is caught in the oil filter with the first few hundred oil passes, which happens before you even take possession from a dealer.
I read there’s a manufacturing defect in the rods, and or crankshaft.
Funny thing is, the engine code they will fail for, is , crankshaft-camshaft mis-synchronous, which isn’t a camshaft, crankshaft responsibility.

In any case, specifying a higher viscosity oil on engines not flagging crank-cam sync issues, is certainly not a fix, and it’s not a “fix” for engines not built from faulty rods, or crankshafts.
It only speaks for GM trying to band-aid, an engine design flaw, by masking it with requiring thicker oil at temperature

 

[Hay Dude]

That is a Whole lot better than what RAM was doing in 2012 with the Cummins. My nephews oil with a 1/4 the miles on the engine would be black within 1000 miles

I have 8 different diesel engines and all of them turn the oil black very quickly. It’s from soot. Its a diesel thing.

My 03 can still see through it at change time, He was changing it early because it would end up a quart over full before the recommended change, every bit of that was diesel fuel that emissions requirements were adding to burn the DPF out. Then the dealer says at oil change just "short" the oil fill by a full quart.

It is a whole lot better now. I don’t have those issues and can outpull any gas engine 1500-5500 on the market, quite easily.
Cummins is the only engine also found in farm tractors and industrial tractors
That’s about all I needed to know. I have no choice.

 

[BravoXray]

I haven't seen any detailed teardowns of failed engines yet, but one YT mechanic said he had heard from someone that had torn one down, and it appeared a wrist pin retainer failed, the pin shifted in the piston disengaging from one of the pin bosses, which broke the piston at the other pin boss, then threw the rod.

Don't know how much credence there is to that story, but it will be interesting to find out what is actually happening in the failed engines.

 

[sd455dan]

I have 8 different diesel engines and all of them turn the oil black very quickly. It’s from soot. Its a diesel thing.

It is a whole lot better now. I don’t have those issues and can outpull any gas engine 1500-5500 on the market, quite easily.
Cummins is the only engine also found in farm tractors and industrial tractors
That’s about all I needed to know. I have no choice.

I am a Believer that Cummins has great diesels and even the new fuel agnostic six has some amazing specs. ~450 ft lbs. at 600 RPM even for the base model and lowest HP version.

That has to be some kind of record setter for a stock 87 octane gasoline powered engine. Should pull a trailer well from a dead stop without revving the engine,

Would love to see a new TV ad with a Ford running their OHC 6.2 gas Camera switching between the B6.7 Octane Cummins six and the Ford V8 with a really heavy trailer stopped on a hill and then pulling the brake and see each one move the load up the hill. They could even let the Ford have the 4.30 gears.
Ford revving 4000 - 5000 RPMs, Cummins loafing along at 1400-2000 RPM's.

My nephew -same one that had the diesel in the oil on the 2012 model, really wants to try that new engine out in a truck. I Really Hope RAM decides to sell an HD 2500-3500 with that engine and Of Course keep the Cummins Diesel six's into the next couple decades.

 

[Jstpssng]

Here's an interesting video about wet timing belts. More on Europen 3 cylinder turbo'd engines but the information about the rubber belt is spot on. least IMHO.

The most important part of this video is around 8 minutes. How much money are we actually saving and environmental damage are we actually preventing with current EPA applications? It seems like we are stepping over a dollar to pick up a nickel.

 

[Tomtint]

I believe the EPA has screwed up virtually every internal combustion engine there is. Manufacturers have to meet these cafe requirements and in order to do so, It compromises reliability. I had been taking a real serious look at a 2024 Denali sierra pick up for work. They drive beautifully, super comfortable and the 6.2 is a monster. But reading up on problems with them, I passed.. I was getting rid of a 2020 4x4 Diesel sprinter van that was nothing but problems with egr issues..among other issues and I didn’t want another problem child. I had considered the baby diesel duramax ..25-28 mpg but the reviews on that were so so .. I ended up with a 23 Toyota Tundra…Figured it would be a good 200k mile driver… well.. it had a driveline vibration in the 70-80 mph range that the dealers could not diagnose or fix.. So I got rid of it at 7k miles for a 24 Tundra.. ..whelp.. Thats truck went in for its first oil change at 3500 miles …and the rear main seal was leaking.. Truck spent a month in the shop getting ripped apart to get that fixed. It has 8k on it now.. last oil change was at 7k.. no oil leaks.. So hopefully that was a one off problem. Many of the 22-23 tundras have engine recalls as mentioned earlier. So who knows. Just yesterday a friend of mine who has a 18 or 19 Cummins Ram .. had to pull his exhaust off to replace the DPF injector before his truck went into limp mode. Dealer said he needed that, also a new turbo and actuator as well as some other crap.. quoted him a bit over 10k for the work on a truck that has 72k miles … The more complex cars and trucks get, the more problems they have.. It’s that simple.

 

[Hay Dude]

I believe the EPA has screwed up virtually every internal combustion engine there is. Manufacturers have to meet these cafe requirements and in order to do so, It compromises reliability. I had been taking a real serious look at a 2024 Denali sierra pick up for work. They drive beautifully, super comfortable and the 6.2 is a monster. But reading up on problems with them, I passed.. I was getting rid of a 2020 4x4 Diesel sprinter van that was nothing but problems with egr issues..among other issues and I didn’t want another problem child. I had considered the baby diesel duramax ..25-28 mpg but the reviews on that were so so .. I ended up with a 23 Toyota Tundra…Figured it would be a good 200k mile driver… well.. it had a driveline vibration in the 70-80 mph range that the dealers could not diagnose or fix.. So I got rid of it at 7k miles for a 24 Tundra.. ..whelp.. Thats truck went in for its first oil change at 3500 miles …and the rear main seal was leaking.. Truck spent a month in the shop getting ripped apart to get that fixed. It has 8k on it now.. last oil change was at 7k.. no oil leaks.. So hopefully that was a one off problem. Many of the 22-23 tundras have engine recalls as mentioned earlier. So who knows. Just yesterday a friend of mine who has a 18 or 19 Cummins Ram .. had to pull his exhaust off to replace the DPF injector before his truck went into limp mode. Dealer said he needed that, also a new turbo and actuator as well as some other crap.. quoted him a bit over 10k for the work on a truck that has 72k miles … The more complex cars and trucks get, the more problems they have.. It’s that simple.

The problem your friends truck has is he doesn’t drive it enough. 10k miles isn’t much-especially if not towing. The diesel and the exhaust after treatment system truck never gets hot enough.
I am a lower miles driver, too. But I tow enough to really get the EGTS up and I always drive with the truck’s exhaust brake on “full”. This helps the turbo live longer.

I agree with you that the EPA has ruined the reliability and greatly increased the cost of the internal combustion engine.