Funny because it's true. However, as a 6.0 owner it's sad because it's true. Always defending it, saying things like "it's reliable as long as you keep up with it".
I had a MBenz 300SD turbocharged, come in 1 morning running with a broken crank, the front pulley on it was jumping out and back in with each revolution, I thought it was just the pulleys, so I took the belts off and the pulleys & 2 inches of the crank fell on the floor in 1 piece. It blew my mind that the customer drove it in doing that. Nothing else was hurt other than the crank, so I threw in another 1 with new bearings and seals. It came out of a core engine with a busted block from no antifreeze but the crank was in good shape. It was sitting in the floor to be returned for the core charge. We gave them the crank but charged them for labor oil n bearings/with new seals. 18 hour job in 8 hours was a heck of a feat. Until that day if someone had told me that I would have said that's not possible. But it did happen.
Ive seen several broken cranks in multiple different engines mostly diesels everyone of them still ran and spun both ends I don’t understand how people can’t fathom this the crank is secured in five main webs and when they break it’s usually not a perfect clean break like for instance when early 6.2 chevys broke it was always on the web going outwards towards a rid journal and it would break at a 45 degree angle and still run but rattle like a broke toaster
If you do replace it, upgradethe cam to the alternate firing order cam. Changes the firing order so all the stress isn't in the the front of the crank.
@@MidniteLiquid the firing order is odd and was never changed for some reason. The firing order starts off with cylinder 1 and 2 so there is a lot of stress right there on the front of the crank. With alternate, it goes 1 to 5. I recommend this to anyone with a duramax honestly.
Screwdriver 440 is probably right, or an exhaust leak. And zig zag, you probably experienced piston slap, which can sound like rod knock, but you didn’t have rod knock for 2 years, you’d had no bearing and gotten so much worse very quickly, even if it was on startup, or a collapsed hydraulic lifter. Edit: I assume you’re meaning a rod knock, if you’re having a main bearing knock you’ve most likely spun the bearing and it’s getting zero oil, and it would be wiped out in no time and that would also not last for 2 years
Reminds me of when the previous owner of my 04 ran the LQ4 for 6 months with little to no oil pressure until it spit out the front 2 main bearing sets. Could grab the front balancer and move crank up, down left and right by hand. Thing sounded like an unbalanced washing machine while running. They ran it so hard the middle two main supports that hold the bearings on the block-side badly discolored and cracked up to the cam. most other rod and main bearings (what was left) were fused to the crank. Surprisingly it didn't throw a rod. I can't complain about it though, they ran it into the ground and I got a nice 3/4 ton truck for next to nothing.
Nice is a relative term. It's still a quasi-modern vehicle so it's still built out of tin foil and tupperware. But hey, you didn't pay more than it was worth, so run it till the front falls off them throw it in the scrap bin and buy a squarebody to replace it.
My 2019 Grand Cherokee Ecodiesel was knocking, I thought it was the main bearings but when the shop stripped it the crank was in two, but Jeep,say it’s not a warranty but it’s been serviced to schedule using the correct 5-40 oil, never used for towing anything bigger than my one bike motorcycle trailer 😢
CZcams has recommendes this video literally every time i opened youtube for the past month.. wtf.. fine youtube i'll watch this poor mans brokemax.. or durabroke..
i heard this noise a few days ago on the net and it was the main crankshaft bearings going out... not the rod bearing... drop the oil pan and remove the main bearing caps and check it out,,, no problem,,, first drain out the oil... Haha... good luck to you ,,,, i am doing head gaskets now just sent out the heads $550 to do the head work meaning presser test and cut heads flat no parts, that will be more money ,,, but $550 for 2 heads is a great price here in san diego they machine the head work for the Dealerships here in san diego they do great work.. in this city these diesel repair shops want $4000 just to pull the heads off a LLY 2005 duramax just crazy i pulled them in 16 hours i took my sweet time and log and tag everything and i tell you there is a lot to remove and with 278K miles on her all the hoses are junk and replacing everyone with new coolant water pump because the presser blew out the pump shaft seal i could not believe it never seen that before the coolant shooting the little hole in the water pump leaking after i heard a loud noise bam it blew wow ... another $300 ,,, ARP studs on order with Dealership factory head gaskets the '' C ''' type only they are thicker because i am cutting the heads they will be closer to the Deck... the Exhaust came off no problem no rust here in DAGO... Haha...
Morning sir … I’m trying to buy a 06 duramax with the lbz engine but when you start it it kind of chatters at start up than it goes away what could be the problem the guy says that they told him it could be the tunes out of date. How tru can this be
Sounds like rod knock or main bearing knock, if crank is broke. Either the accessory drive or the flywheel shouldn't spin. If flywheel didn't spin the starter wouldn't start it
I have seen the cranks break at an angle so that it can still turn either direction but it sits there and bangs around back and forth. I have seen this on one duramax and one 6.7 powerstroke
Seen it several times, Even Had it happen to me on a dodge 3.9 v6 years back . it drove ok but it was making wierd noises and the balancer was flopping around. wasnt a clean brake there was a jagged edge that locked the 2 halves together.
@@reesespeanutbuttercups5548 Doesn’t matter how long you’ve been a tech, you won’t see every single scenario. This one is certainly unique but clearly from his other video there’s a stress fracture on the crank.
The amount of people screaming that the crank isn't broken because both ends are spinning don't seem to understand that cranks don't usually shear clean in half...
This just happened to my lb7. I’ve been pulling my hair out trying to figure it out. At first I thought it was fuel knock. Changed injectors started it again and still knocking. Pulled front end off to see if harmonic balancer spun. Nope still good. I’m pulling the motor this week. Once it’s out I’m gonna look because there isn’t any play in the shaft. It must just be cracked. 😂
That sucks. Did they magniflux the crank line bore etc etc. Lots of precision required with this kind of rebuild. Were you towing weight beyond pecs for the truck?
Was not towing heavy (~8,000 lbs) This website has all the specs on DFC's tow/haul diesel. dfcdiesel.com/duramax/towhaul-series-6-6/ For the record, I have yet to pull the motor apart and actually diagnose the problem. There's always the possibility that it isn't a broken crank. Could be the harmonic balancer too. I will post once I have the thing pulled apart.
@@treeguygrant pop the cover so you can see flexplate.. put a socket and breaker bar on balance pulley bolt.. rock ever so slightly if front moves before flexplate.. then you got a broken crank.. just replaced a dmax engine with broken crank... unless you had a lot of power to it it should not break.. crank problems really started in lmm and got worse with lml.. a bad injector can make em knock like that
The sound resembled that of our 1981 Fiat 880 DT backhoe running i thought it was normal at first but when you reved the engine up i could hear that it wasn't normal at all 😐
Maybe a cracked flex plate or blown converter or something but if it starts (which it does) the crank is intact at the back and the belt is turning so it's in tact at the front.
If the pistons are intact to the crankshaft still they wouldn’t allow the crankshaft to spin independently anyways because the pistons would still be moving up and down that’s why the belt is still turning and the crankshaft isn’t going to be completely snapped in half it’s probably cracked and has enough play in it to make noise
DMax cranks will snap at the first throw. Guys wonder if its from the damper weight or just because they do. It will do some dippydoodle things to the crank sensor and timing chain but i could see it still running.
@@treeguygrant wow! Now that is interesting!! I have no problem admitting when I'm wrong! Yeah I can see how it would still run from back to front!... that type of crack looks like it would be caused by excessive thrust maybe. Crazy!
Definitely curious if you got this issue resolved yet I got a 03 lb7 runs like a dream and if it is your crank I'd go with a billet crank that way she handles the abuse a lil better
Did it brake right at the converter? I've never in my life seen a running vehicle, nor a vehicle that is so unnoticeable with such a serious problem in my life
Had 4 of them in my shop now and all 4 of them were broken in the center and they still ran like the one in the video. Supposedly the issue is that the injector “timing” is getting pushed farther and farther off so the cylinder is firing directly at tdc. That in combination with the cylinders 1-7 being opposite of each other puts a ton of stress on the crank and snaps them. This is all speculation I have no hard proof that that’s what causes it but it seems most likely.
A crank that is cracked will still run it only stops when it finally snaps I know I experienced it on a 6.2 diesel the thing ran until it broke near the flex plate
@@nfrcomputers yes, I’ve heard of people changing it at 200-250k so they don’t have to worry about any more fatigue as the vehicle ages, however I have also heard of bone stock duramaxes hitting 1m miles. So it’s up to the owner really.
Im confused. I can see it running if it was broke at the flexplate but wouldn't explain being able to start it. And the accessories were turning. Sounded like a heavy rod knock to me.
That crank is not broke. I have had a broken crank on a highly modified LB7 and it sounds like there is a guy under your hood with a sledge hammer. Yours sound like it has sheared the harmonic balancer guide pin. LB7's snap at the front of the crank, your belt would not be spinning unless for some reason it chose to run one cylinder against the other 7 and the one was winning. If it happened while towing and still starts, its the harmonic balancer or the cam bearing seized up. it hasn't jumped time yet, the cam pin and the crank pin would cause it to jump time bad. If it's a rod, you hydro locked a cylinder due to a bad injector, seen it happen towing in a very hot tune.
Rod bearing failure. Engine would smoke if crank is broken and not run smoothly .Cylinder cut out test determines location . Drain engine oil and look for bearing debris .
In the last ten or twenty years, it seems like practically every manufacturer has produced engines, especially V-8s, that can't give a reasonable service life or MTBF due to defective design. I wonder why this is? Perhaps it is because OEMs have decided electric is the future, and they are assigning their second string engineers to combustion engine designs.
With some of the chevs its more upgrade known weak points if you want to use it for anything serious. E.g. LS3 do oiling, rocker arm needle bearings, lifters and you'll have a very reliable engine.
That noise isn't a "broken crankshaft" but a spun connecting rod bearing. Needs new crank bearings and a new or well polished crankshaft. Neither is a cheap fix.
Doesn't make a whole lot of sense to me for a broken crank. Front accessories are turning fine (And the crank there has to stand up to compression and ignition on as many cylinders are forward of the supposed break). The flywheel and starter are on the back, and if any front cylinders came out of time, the valves would get hammered..... I don't think this noise is quite awful enough to be a broken crank. Not sure what is wrong with it, but you might be luckier than you think, hopefully.
The 5.9 12v has the 7.3 whooped any day. The IDIs are rugged and durable, but they're slow and sluggish. The Powerstroke is a good motor, but they have there share of issues, especially depending if it's a 94.5-97, or 98-03.
A lot of high mileage duramax out there without any rebuild the downhill is it very expensive to buy even the used one is not cheap to buy because the engine out outperform any other Diesel engine out there!
@@justinh8059 started working on it myself. I have a few more videos on my channel. My sons and I hope to get the whole motor out today. From there, I’m not sure if I want to go back with a stock crank or a billet one.
it is not a broken crankshaft... it is really hard to hear the noise... a broken crank would be something i have never seen yet... maybe crank bearing noise ???
"Sounds fine."
-literally every powerstroke owner
Funny because it's true. However, as a 6.0 owner it's sad because it's true.
Always defending it, saying things like "it's reliable as long as you keep up with it".
I had a MBenz 300SD turbocharged, come in 1 morning running with a broken crank, the front pulley on it was jumping out and back in with each revolution, I thought it was just the pulleys, so I took the belts off and the pulleys & 2 inches of the crank fell on the floor in 1 piece. It blew my mind that the customer drove it in doing that. Nothing else was hurt other than the crank, so I threw in another 1 with new bearings and seals. It came out of a core engine with a busted block from no antifreeze but the crank was in good shape. It was sitting in the floor to be returned for the core charge. We gave them the crank but charged them for labor oil n bearings/with new seals. 18 hour job in 8 hours was a heck of a feat.
Until that day if someone had told me that I would have said that's not possible. But it did happen.
Ive seen several broken cranks in multiple different engines mostly diesels everyone of them still ran and spun both ends I don’t understand how people can’t fathom this the crank is secured in five main webs and when they break it’s usually not a perfect clean break like for instance when early 6.2 chevys broke it was always on the web going outwards towards a rid journal and it would break at a 45 degree angle and still run but rattle like a broke toaster
Lol not that it matters but a broke toaster rattles?😂
Have you heard of punctuation?
@@njhgv9192 you can still understand what he’s saying. stop caring about internet strangers’ grammar
@@njhgv9192 this is a comment section not comp 2 no one cares about punctuation here
@@njhgv9192 I have not can you tell me what it is
If you do replace it, upgradethe cam to the alternate firing order cam. Changes the firing order so all the stress isn't in the the front of the crank.
My uncle had to do this on his built Duramax as he broke a crank coming home from a trip while towing.
@@MidniteLiquid the firing order is odd and was never changed for some reason. The firing order starts off with cylinder 1 and 2 so there is a lot of stress right there on the front of the crank. With alternate, it goes 1 to 5. I recommend this to anyone with a duramax honestly.
Still quieter than the 6.5 Detroit
still more reliable than a 6.0 powerstroke
Probably still makes more power as well lol
@@jonthelamb4549 Well thats what happens when you compare a new plat form to a decade old one
But a 6.5 sounds nicer.
@@rock-uu7qr ya but the new one is also broken
I could hear it at the end of the video. I listen to a Cummins everyday it took me a while to hear it. Lol
Same here at the beginning I was like theirs nothing wrong with it until the end of the video 😂
okay thank God I wasn't the only one questioning this until the end. makes my valve tick seem like nothing, that's for sure
Same lol
Sounds close to what my old 12 valve sounds like as far as the odd ticks and knocks and every other sound that isn't quite right
Yep - it's broken. Mines been sounding like that for years but I have kept on towing our fifth wheel with it for the last 20,000 miles or so.
You’ve got balls😂😂
fuck it
Why? I had a breakdown pulling a trailer with my truck that had been perfectly running. Brought me a lot of expensive misery. Never ask for trouble.
@Screwdriver440 depends how bad it is. I had a main bearing knock in my car for nearly 2 years and it’s still going.
Screwdriver 440 is probably right, or an exhaust leak. And zig zag, you probably experienced piston slap, which can sound like rod knock, but you didn’t have rod knock for 2 years, you’d had no bearing and gotten so much worse very quickly, even if it was on startup, or a collapsed hydraulic lifter. Edit: I assume you’re meaning a rod knock, if you’re having a main bearing knock you’ve most likely spun the bearing and it’s getting zero oil, and it would be wiped out in no time and that would also not last for 2 years
This is why I like my Ford so much. Noises like that are just normal... :D
Reminds me of when the previous owner of my 04 ran the LQ4 for 6 months with little to no oil pressure until it spit out the front 2 main bearing sets. Could grab the front balancer and move crank up, down left and right by hand. Thing sounded like an unbalanced washing machine while running. They ran it so hard the middle two main supports that hold the bearings on the block-side badly discolored and cracked up to the cam. most other rod and main bearings (what was left) were fused to the crank. Surprisingly it didn't throw a rod. I can't complain about it though, they ran it into the ground and I got a nice 3/4 ton truck for next to nothing.
Jesus lmao
WOw!
Sounds like they got their money's worth. That's what a trucks for.
Nice is a relative term. It's still a quasi-modern vehicle so it's still built out of tin foil and tupperware. But hey, you didn't pay more than it was worth, so run it till the front falls off them throw it in the scrap bin and buy a squarebody to replace it.
@@TestECull I've got a couple squares too!
Sounds like every single duramax runnin smooth
My 2019 Grand Cherokee Ecodiesel was knocking, I thought it was the main bearings but when the shop stripped it the crank was in two, but Jeep,say it’s not a warranty but it’s been serviced to schedule using the correct 5-40 oil, never used for towing anything bigger than my one bike motorcycle trailer 😢
fiats 3.0 is a rolling trash can!!
I see them every day in the core world
CZcams has recommendes this video literally every time i opened youtube for the past month.. wtf.. fine youtube i'll watch this poor mans brokemax.. or durabroke..
Kinda sounds like my shoes when there in three dryer 😂
Sounded like my power stroke with a broken needle valve in the pressure regulator.. but when you hit the throttle you could tell !
i heard this noise a few days ago on the net and it was the main crankshaft bearings going out... not the rod bearing... drop the oil pan and remove the main bearing caps and check it out,,, no problem,,, first drain out the oil... Haha... good luck to you ,,,, i am doing head gaskets now just sent out the heads $550 to do the head work meaning presser test and cut heads flat no parts, that will be more money ,,, but $550 for 2 heads is a great price here in san diego they machine the head work for the Dealerships here in san diego they do great work.. in this city these diesel repair shops want $4000 just to pull the heads off a LLY 2005 duramax just crazy i pulled them in 16 hours i took my sweet time and log and tag everything and i tell you there is a lot to remove and with 278K miles on her all the hoses are junk and replacing everyone with new coolant water pump because the presser blew out the pump shaft seal i could not believe it never seen that before the coolant shooting the little hole in the water pump leaking after i heard a loud noise bam it blew wow ... another $300 ,,, ARP studs on order with Dealership factory head gaskets the '' C ''' type only they are thicker because i am cutting the heads they will be closer to the Deck... the Exhaust came off no problem no rust here in DAGO... Haha...
While it is a loud sound, I was expecting a more "catastrophic" sound when i read the title
You’ve got a penguin cucumber for a truck.
When this truck idles, my face smiles.
It identifies as a 7.3 powerstroke
Morning sir … I’m trying to buy a 06 duramax with the lbz engine but when you start it it kind of chatters at start up than it goes away what could be the problem the guy says that they told him it could be the tunes out of date.
How tru can this be
Sounds like a 7.3 to me
Haha I was about to say that 🤣
Marbles in a dryer lol
It sounds good 👌
I didnt need another reason to not buy a durrrrmax. This is just icing on the cake.
Ok ford guy lol
@@rickydavis5541 cry more
@@Andrew_460 😂😂😂😂
@@rickydavis5541 weird coping mechanism but ok
Sounds like rod knock or main bearing knock, if crank is broke. Either the accessory drive or the flywheel shouldn't spin. If flywheel didn't spin the starter wouldn't start it
I have seen the cranks break at an angle so that it can still turn either direction but it sits there and bangs around back and forth. I have seen this on one duramax and one 6.7 powerstroke
This truly sounds like it’s flooded or injectors are sticking, when that happens the liquid “knocks”, (I learned this from a 30+ year diesel tech)
czcams.com/video/rfOFAXxvySY/video.html Nope, for sure a broken crank.
Seen it several times, Even Had it happen to me on a dodge 3.9 v6 years back . it drove ok but it was making wierd noises and the balancer was flopping around. wasnt a clean brake there was a jagged edge that locked the 2 halves together.
@@reesespeanutbuttercups5548 Doesn’t matter how long you’ve been a tech, you won’t see every single scenario. This one is certainly unique but clearly from his other video there’s a stress fracture on the crank.
I'm gonna give it a little throttle.
The crank: NOOOOOO
The amount of people screaming that the crank isn't broken because both ends are spinning don't seem to understand that cranks don't usually shear clean in half...
This just happened to my lb7. I’ve been pulling my hair out trying to figure it out. At first I thought it was fuel knock. Changed injectors started it again and still knocking. Pulled front end off to see if harmonic balancer spun. Nope still good. I’m pulling the motor this week. Once it’s out I’m gonna look because there isn’t any play in the shaft. It must just be cracked. 😂
Wow that’s pretty awesome really.. dury ftw
"Chevy. Like a rock!"
because like a rock it isn't going anywhere!
Dual mass flywheel with broken damper springs ??
My understanding is if it is broken on the crankshaft, it would not run at all...please explain
Is it tuned ?
Glad I sold my 2003 LB7, it was babied and still had never ending problems. Went back to gas.
I had a vehicle that made a similar sound, nuts bolting the torque converter to the fly wheel(?) where not properly tightened.
my man got the chris fix standard truck 💀
Man I would be puking sick dang
That sucks. Did they magniflux the crank line bore etc etc. Lots of precision required with this kind of rebuild. Were you towing weight beyond pecs for the truck?
Was not towing heavy (~8,000 lbs) This website has all the specs on DFC's tow/haul diesel. dfcdiesel.com/duramax/towhaul-series-6-6/ For the record, I have yet to pull the motor apart and actually diagnose the problem. There's always the possibility that it isn't a broken crank. Could be the harmonic balancer too. I will post once I have the thing pulled apart.
@@treeguygrant pop the cover so you can see flexplate.. put a socket and breaker bar on balance pulley bolt.. rock ever so slightly if front moves before flexplate.. then you got a broken crank.. just replaced a dmax engine with broken crank... unless you had a lot of power to it it should not break.. crank problems really started in lmm and got worse with lml.. a bad injector can make em knock like that
@@ferrismowersuperstore1568 great advice! I’m going to do that this week. I’d love for this sound to be something less catastrophic.
The sound resembled that of our 1981 Fiat 880 DT backhoe running i thought it was normal at first but when you reved the engine up i could hear that it wasn't normal at all 😐
Maybe a cracked flex plate or blown converter or something but if it starts (which it does) the crank is intact at the back and the belt is turning so it's in tact at the front.
That's the same thing I thought. czcams.com/video/rfOFAXxvySY/video.html
If the pistons are intact to the crankshaft still they wouldn’t allow the crankshaft to spin independently anyways because the pistons would still be moving up and down that’s why the belt is still turning and the crankshaft isn’t going to be completely snapped in half it’s probably cracked and has enough play in it to make noise
DMax cranks will snap at the first throw. Guys wonder if its from the damper weight or just because they do. It will do some dippydoodle things to the crank sensor and timing chain but i could see it still running.
@@treeguygrant wow! Now that is interesting!! I have no problem admitting when I'm wrong! Yeah I can see how it would still run from back to front!... that type of crack looks like it would be caused by excessive thrust maybe. Crazy!
Is this the new cylinder deactivation update
The little tic sound ?
maybe the harmonic balancer damper or torque converter bolts?
czcams.com/video/rfOFAXxvySY/video.html Nope. Broken crank for sure.
Definitely curious if you got this issue resolved yet I got a 03 lb7 runs like a dream and if it is your crank I'd go with a billet crank that way she handles the abuse a lil better
czcams.com/video/rfOFAXxvySY/video.html Still tearing it down.
A bad harmonic balancer causes the crank to break. If everyone would put a good aftermarket balancer it wouldn't be an issue
@@jeffdyer2393 It had an ATI super damper.
@@treeguygrant best of luck anything else done to the motor or is it all pretty well stock for heads and internals
@@jeffdyer2393 Not accurate guy
How is it now?
Did you get work done on it?
czcams.com/video/rfOFAXxvySY/video.html Still tearing it down. Kid's little league is taking all mine time currently.
Sounds like my 2015 Honda Accord motor last month
Ready for the scrap yard
Did it brake right at the converter? I've never in my life seen a running vehicle, nor a vehicle that is so unnoticeable with such a serious problem in my life
I have yet to open the crank-case. I pulled the motor last weekend. Bought an engine stand, but haven't got it on the stand yet.
czcams.com/video/czTBSmnWtfk/video.html
Had 4 of them in my shop now and all 4 of them were broken in the center and they still ran like the one in the video. Supposedly the issue is that the injector “timing” is getting pushed farther and farther off so the cylinder is firing directly at tdc. That in combination with the cylinders 1-7 being opposite of each other puts a ton of stress on the crank and snaps them. This is all speculation I have no hard proof that that’s what causes it but it seems most likely.
I might add that this has happened on the lb7 lml and l5p so it’s not limited to a certain engine.
@@Ry_Pox alt firing cams I’ve heard snap as well
A crank that is cracked will still run it only stops when it finally snaps I know I experienced it on a 6.2 diesel the thing ran until it broke near the flex plate
Not a rod? Takes a LOT of force to break steel crank. If broken crankshaft is issue you'd likely need a line hone or new block. Good luck brother!
Duramax firing order starts with 1-2 and that is where the cranks usually break. It’s not a common problem but definitely not uncommon.
there’s a alternate cam to change the firing order right?
@@nfrcomputers yes, I’ve heard of people changing it at 200-250k so they don’t have to worry about any more fatigue as the vehicle ages, however I have also heard of bone stock duramaxes hitting 1m miles. So it’s up to the owner really.
Sounds like my IDI's on a good day,maybe a little quieter though...
I am calling shenanigans on the “broken crank” claim. Flexplate maybe or rod knock
czcams.com/video/rfOFAXxvySY/video.html Nope. Broke crank.
yeah i saw it afterwards, i'd say fractured not spinning independently yet but still trashed
does anyone here know what a crankshaft is or what it does?????
How many miles on this pos
My truck has that sound for about eight years now drive it until she quits
Im confused. I can see it running if it was broke at the flexplate but wouldn't explain being able to start it. And the accessories were turning. Sounded like a heavy rod knock to me.
ashes to ashes
dust to dust
if you would have
left it alone
it would still be with us
Something sounds ...
Fun ...
wow thats interesting
Did you try Seafoam?
Does Seafoam fix this: czcams.com/video/rfOFAXxvySY/video.html
@@treeguygrant Probably. I ran Seafoam through my tank and it fixed the rip on my seat.
@@YouStupidBunny hahaha! That's funny right there! I couldn't tell if you were serious the first time! I was like, these internet people man...
hot damn my lmm sounds like this
Should probably get that checked out there bud
Sounds exactly like a 6.0L Powerstroke
Cant snap the crankshaft if its already broken 😭👌👌ford was ahead of its game
how does it run so well still with a broken crank hahahahaa had a chevy cavalier like that
I have yet to open the crank-case. I pulled the motor last weekend. Bought an engine stand, but haven't got it on the stand yet.
czcams.com/video/czTBSmnWtfk/video.html
I had similar issues in my Subaru. It seized completely shortly after.
That’s how all Chevrolets sound.
That crank is not broke. I have had a broken crank on a highly modified LB7 and it sounds like there is a guy under your hood with a sledge hammer. Yours sound like it has sheared the harmonic balancer guide pin. LB7's snap at the front of the crank, your belt would not be spinning unless for some reason it chose to run one cylinder against the other 7 and the one was winning. If it happened while towing and still starts, its the harmonic balancer or the cam bearing seized up. it hasn't jumped time yet, the cam pin and the crank pin would cause it to jump time bad. If it's a rod, you hydro locked a cylinder due to a bad injector, seen it happen towing in a very hot tune.
Nope, he has another video showing its the crank
Especially when you let go of the gas you hear it more
It's a Duramax, remember the name.
How can it be broke the starter is in the back of the engine k so I seen the belt moving so who u trying to fool?
czcams.com/video/rfOFAXxvySY/video.html Not fool'n. It's cracked in a way that still allows everything to turn.
Ouch....
I had a 6.0 and the crank snapped and that was it lol
this happened to my dads 454 chevy engine, the whole crankshaft snapped in half
Sounds like my truck does all the time lol
Oh shit, these duramaxs came with bise sound systems?
Bise? You mean Bose? And that is a GM thing for more than a decade.
Rod bearing failure. Engine would smoke if crank is broken and not run smoothly .Cylinder cut out test determines location . Drain engine oil and look for bearing debris .
Shit man im pretty positive my crank is broke after hearing this... sad thing is i dog on it everyday even still.. lol
czcams.com/video/rfOFAXxvySY/video.html Yup, mine's a goner. Pull the serpentine belt and try to wobble the harmonic balancer.
grandpa would say just to get it above 85mph on the interstate an itll fix itself
Sounds like a Skyline but more "diesely"
Sounds like a durajunk lol
Why does it still sound exactly like every diesel I've ever sat next to in traffic
Sounds like a power stroke now
Does the noise go away when you put in drive?
Could be flexplate, if it's automatic,
Lots of people that throttle jockey these work trucks and race them … see it all the time
If they’re not breaking crankshafts are blown head gasket in Breaking cam shafts at Duramax engine is a joke I’m sorry for your loss man
Someone is knocking
Sounds like it's got a bit of a miss and a dual mass flywheel issue.
czcams.com/video/rfOFAXxvySY/video.html Nope. Broken crank for sure.
Motors out great drop a 12v be a beast of a truck
In the last ten or twenty years, it seems like practically every manufacturer has produced engines, especially V-8s, that can't give a reasonable service life or MTBF due to defective design. I wonder why this is? Perhaps it is because OEMs have decided electric is the future, and they are assigning their second string engineers to combustion engine designs.
With some of the chevs its more upgrade known weak points if you want to use it for anything serious. E.g. LS3 do oiling, rocker arm needle bearings, lifters and you'll have a very reliable engine.
Sounds more like the Cannooter bearing thn the crank.
That noise isn't a "broken crankshaft" but a spun connecting rod bearing. Needs new crank bearings and a new or well polished crankshaft. Neither is a cheap fix.
Doesn't make a whole lot of sense to me for a broken crank. Front accessories are turning fine (And the crank there has to stand up to compression and ignition on as many cylinders are forward of the supposed break). The flywheel and starter are on the back, and if any front cylinders came out of time, the valves would get hammered..... I don't think this noise is quite awful enough to be a broken crank. Not sure what is wrong with it, but you might be luckier than you think, hopefully.
czcams.com/video/rfOFAXxvySY/video.html
The way you can tell the crank is broken is the damper will have some uninstalled movement. I have never seen one running after it broke.
Shhhh it's okay
No diesel can ever come close to the 7.3 power stroke or the IDI. But perhaps the 2nd place is the 6.7
Your daddy must have a 7.3. It's a great engine, but there are many others just as good or better.
The 6.7 is better than the 7.3 in every way
@@EricFixalot strong case can be made for that. It's an incredible engine
The 5.9 12v has the 7.3 whooped any day. The IDIs are rugged and durable, but they're slow and sluggish. The Powerstroke is a good motor, but they have there share of issues, especially depending if it's a 94.5-97, or 98-03.
A lot of high mileage duramax out there without any rebuild the downhill is it very expensive to buy even the used one is not cheap to buy because the engine out outperform any other Diesel engine out there!
I see the pulley system working and it started ssssoooooo why do you say the crank is broken
czcams.com/video/rfOFAXxvySY/video.html Because it's broke.
Do you know how much worse case scenario it would cost to repair?
I'd say 10 grand.
@@treeguygrant ouch, beautiful rig though brother. Someone will take the challenge on!
At that cost why not just drop oil pan and throw another one in? I mean at 10grand you might as well try
@@justinh8059 started working on it myself. I have a few more videos on my channel. My sons and I hope to get the whole motor out today. From there, I’m not sure if I want to go back with a stock crank or a billet one.
it is not a broken crankshaft... it is really hard to hear the noise... a broken crank would be something i have never seen yet... maybe crank bearing noise ???
czcams.com/video/rfOFAXxvySY/video.html
Sounds fine to me, just sounds like another 7.3 powerstroke lol