Hey guys im totally new on here and just need some help. I bought an 06' Chevy 2500 HD crew cab back around Christmas this past year. Been driving it ever since without a problem. I was headed in from work the other day and it start revving itself up and down on its own and just took off by itself. N i mean screaming away. I finally managed getting the truck stopped in park and turned the key off but the truck just kept screaming with the key off. I finally popped the hood tried unhooking wverything but it was still just screaming away, i had no clue, but then i jerked the air tube off the intake and grabbed a board out the bed and used it to cut the trucks air flow off. Even tho it was to late and now i have a blown engine, as a result, what could have made it so this? I have been told by guys that work on heavy equipment that the turbo strted using the the trucks oil amd caused extreme damage. I mean why? It never made a strange noise or appeared like nothing was wrong til it was too late. No warranty and now stuck looking for an engine, n praying that the full coverage will at least paying for the wiring amd such that is destroyed. Just looking for a lil advice and some answers. Anyone ever seen this happen?
One messed up Duramax!
- Thread starter MudcreekChevy2500
- Start date
That sucks! Sorry I have no input or help for you.
Question related to this, can a runaway cause damage on the torque converter or any transmission parts? Just curious.
Question related to this, can a runaway cause damage on the torque converter or any transmission parts? Just curious.
Sounds like a runaway engine prob caused by turbo failure. You can sell alot of the stuff off the engine and make a nice profit. Everybody loves lbz stuff
Yup to turbo failure... That is exactly what happened to me last summer... Melted the whole motor down... Turbo shaft had broken in half and it was pumping its own crankcase oil into the intake tract full bore. Bad luck.
No smoke or power loss it hesitated then just took off like it was gonna lift off. 222.000 strip mine miles without a problem just routine maintence. Will def be looking for a new engine. It completely melted the engine. Never seen a motor runaway like that on a pickup. Nothing broke during the runaway just sit there and got tighter and tighter and tighter. I'd say it was close to blowin the heads off of it.
If there was a natural gas leak close by that can cause it. My grandpa has a gas well on his property and was mowing the grass back in the 70's on a kubota diesel tractor and he said all the sudden the motor revved sky high and he couldnt get it shut off. Turned out the wellhead was leaking and the natural gas just revved the motor until she blew. Gas well company ended up helping him out though
Nope wasn't me lol. But thanks guys ther are gas wells everywhere around where this happened. I'll check into that. Anybody know if full coverage will pick up on any of this? Or is to go it alone. They keep telling me they can't fix watever caused the problem but they have to fix whatever cause the melt down of the wiring and such. Im just having a hard time understanding it. I actually have it on video of it sitting there screaming while running away but cant get it to upload on here. But thanks again guys!
I just had my engine runaway on me a month ago in Oregon due to spraying nitrous and blowing my stock turbo to pieces lol. Don't be too worried though, your engine might be okay, i tore my whole engine down and everything looked fine. My injectors were bad and obviously my turbo but other than that i could've left the engine alone. Washed out the intercooler and boost tubes and i'm still using them with the new engine. I replaced the engine cuz it was faster and wanted a spare engine anyways to build up.
What i would do is find a new turbo, pull your injectors and get them flow tested, pull the intercooler, boost tubes, intake y-bridge off and clean them good. Slap it back together and have fun!:thumb:
BTW what kinda oil are you running and what kind of rpm's were you seeing when it ran away? Mine ran very smooth, fairly low rpm's, i don't think it got over 3000 at all, sounded just like a 2000rpm high idle kind of. I'm running amsoil 5W-40, i wonder if it makes any difference, cuz i'm sure one oil burns better than another
What i would do is find a new turbo, pull your injectors and get them flow tested, pull the intercooler, boost tubes, intake y-bridge off and clean them good. Slap it back together and have fun!:thumb:
BTW what kinda oil are you running and what kind of rpm's were you seeing when it ran away? Mine ran very smooth, fairly low rpm's, i don't think it got over 3000 at all, sounded just like a 2000rpm high idle kind of. I'm running amsoil 5W-40, i wonder if it makes any difference, cuz i'm sure one oil burns better than another
I was using Mobil 15w40 and hadnt had any problem with it. Ur like the 5th guy thats told me to just clean everything up and go at it again. It was turbo failure that caused it thats the last thing the Edge Peogrammer read out. Kinda weird babied this truck, it was a work horse, but babied her. Never noticed the rpms during run away because i was to busy under the hood trying to get her shut down. Never thru anything n still cranks up good. Should i pull the engine and go thru it or just pull injectors to have tested, new oil, n such. Done cleaned the cooler n tubes up they had oil in em. We removed the air tubes during runaway to be able to smother it out. Looks like these truck companys would make some kind of system to put on these 50,000 $ truck to shut em down. A flapper in an air tube or something there has to be some prevention this ruined me bout it not complaining but its hard to make these payments as she sits in the yard and my insurance aaid they couldnt help me. Said mechanical failure wasnt under the claims stuff. But oh well i guess n thanks everybody for ur imput this sight is a blessing from all u gearheads n even with my engine blown i wouldnt trade this dmaxx to anything else it will kick again someday lol
It was turning some rpms, i have a video of it just cant figure out how to download it yet lol n i have my Edge Juice with attitude off the truck need to sell to pay for a turbo if anyone needs it. Hate to sell it but gotta do it at the time being just to get started on my engine
Leave that engine in there, pull the injectors and have them flow tested, if you're lucky they will all return good. Get a new turbo, make damn sure the intercooler is clean and put er back together again. My engine ran away til it was out of oil and then it finally died, and no signs of any damage inside the engine besides injectors. I wish i never pulled my motor apart, it was such a good runner, oh well at least i have a core to start building something fast now
thanks buddy i will start bolting things back on now getting ready fer new turbo ill keep u all updated!
Hey buddy i bolted everything back on that i had off put new oil in n we (my dad n I) just wanted to hear it crank over before putting the new turbo n cooler n cooler tubes back on. But the truck will not crank off the key. Any ideas? U have to bipass it by crossing the starter over. Truck sounds good cranking but will not start. Now is that just because we haven't put the new turbo on yet or will the duramax not run with turbo n air tubes n cooler on. We just wanted to hear it start. But now im thinking there is summin going on with the wiring because everything works on the key but it as i said it will not crank on the key just by bypassing! Any advice other than taking it to GM because i cant afford that.