Destroyed Duramax. Who’s seen worse?

[GhostSniper]

I would never have thought the injector spray pattern would destroy an engine. Crazy how far we have came, both good and bad.

[broken]

Paying the toll for rolling the coal 😂

[johnnywad]

Back in the mid 1980s, after i got out of the military, i went to one of the best diesel mechanic courses on the east coast at Williamsport area community college, 4 semesters. 2 semesters of engines alone. 1 of my term papers was on combustion chamber design. The top of piston is designed for maximum turbulence of the compressed air. Essentially a donut shaped vortex rolling at supersonic speed. That is when fuel is injected into this vortex of 1200 degrees F air. For it to melt holes into pistons like that, its my professional opinion that the engine is being lugged, starved for air, over fueled, incorrect injection timing, or a combination of all 4.

[jessieharbinjr.]

I can tell you from first-hand experience when working on these. I used to get a bunch of them in the shop that had these plug and play tuners on them. The owners would bump the fuel injector up way over their limit, and melt the pistons. Especially if it was a bully dog brand tuner.

[maxh]

Cant imagine the amount of diesel getting into and thinning out the oil, that block is probably toast

[TheBeingReal]

Tell me you tuned the engine without telling me you tuned the engine.

[Snakeman]

My dad's 05 lly did this hauling an empty trailer it over pressurized the crankcase and blew oil out lighting the truck on fire when it hit the turbo. He got the fire out and I drover down in his 2500hd 6.0 and towed it back to our place. It was a reman by a "good" company, and it was my dad's work truck, he couldn't afford a new motor agian so soon, so we pulled it out got it on the floor and proceed to clean the balls out of the crank case with brake clean pull that single piston and rod out and found a replacement and dingle ball honed the melted metal off the bore and slapped it back in, it has now gone over 75k on that fix, we had to make it work, I've never seen my dad that depressed. Now we have 2 good junkyard replacement in the garage just in case.

[jasonmiller]

I have a 23 year old 7.3L that's still running strong. I know it has fairly low HP and torque compared to modern diesel engines but it has been ultra reliable for me.

[stevenperry]

That's what happens when you re-engineer your Desiel. That's not stock.

[pyatt]

Results of pizz poor tuning and running dirty

[minusthemachineagain]

Failed diesel injectors become a torch. It’s not a drill hole. Torched.

[billfincher]

My 03 2500HD D/max since new has been a reliable pulling machine. Well cared for/stock and realize its not the fastest of the oil burners. Drive it like i love it.

[jasonschaeffer]

Looks like someone needs a new tuner. Like, a good one 😂😂 cheap tunes get expensive $

[douglashewitt]

My contractor friend had a diesel. In the shop three times in three months. They kept it two months the last time. Cost him 8 thousand dollars and couldn't figure out the problem. Kept throwing codes. Got to the injectors being replaced at 800 dollars each. He refused because they wouldn't guarantee it would fix it. They already cleaned out EGR stuff and replaced the turbo, etc. His mechanic told him to change out the entire exhaust system because the codes involved those sensor banks. The brain box was damaged, but the company wouldn't pay for that even under warranty. Put on aftermarket exhaust system, going around the brain box... It worked.

I will never own a diesel. Too spendy.

[coast.cutter]

I wanna know who can afford diesel repairs in todays economy

[tycotoys]

My L5P is totally stock, 910 torque is plenty for my needs. Gives me zero issues

[SuperMonsteraddict]

Those injectors are like little sand blasters

[km-nqpm]

Engines are like light bulbs. Twice the brightness, half the life.

[regdor]

Most can't imagine the damage an extremely high pressure jet of fluid can do to metal, maybe because they have never watched a water jet cutting patterns out of steel...

[robertball]

Service writer asked me why I didn't buy a Duramax in my GMC 2500HD. I sai: cost to buy, cost to service, smell, and noise. He just smiled, agreed, and asked what I needed today.