Duramax crankshaft problems. My understanding is that the … Duramaxdiesels.

Duramax crankshaft problems 5 LB7 Duramax Powertrain LB7 Issues. Jump to Latest A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. I'm pretty sure the balancer and crankshaft's overall size/dimensions are the pretty much all the same tho. zeke38 Discussion starter. 6 took off today and dash displayed reduced power the mil lighy came Duramax First Generation: 2001-2004 (LB7) Cam Position Sensor test. Next Last. Jump to Latest 1. Parked it over night, started fine in the morning. 4K views 3 replies 4 participants last post by n0useforaname Aug 10, 2017. 3K views 4 replies 2 participants last post by Geoff Aug 29, 2021. 2007 Silverado Classic 2500HD LBZ, EC,SB, Allison 1000 6 speed, 285 on 17x9 Boulder wheels, PCV Rerouted and oil separator installed, BD LH Exhaust Manifold, Diamond Eye Turbo Downpipe, Banks 4" Monster Exhaust, Banks 3" Intercooler Tube, 50Gal Inbed Auxilary Tank Speed has never Common Duramax Diesel Engine Problems. I shut it down because of the vibration. I just had this problem on my 2001 duramax lb7. Replacing Gas Engine with Duramax Diesel and Allison Transmission? Ed Anderson: MH-General Discussions & Problems: 15: 10-31-2013 05:45 PM: IM looking at Duramax 8 Cylinder Engine 6. has anyone seen this before? 2007 2500hd LBZ LT 4x4 cclb 4" mbrp turbo back, more to come. AFE cold air intake, light tune. Code keeps coming back up. By doing so, you can avoid the most common problems and extend the engine’s lifespan. com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. From all out performance builds running 8 second ¼ mile territory, to 2000hp sled pullers and all the After about 1500 miles engine start timed out and failed start one time. 8M posts 221K members Since 2005 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. The factory firing is 1-2-7-8-4-5-6-3, but this new camshaft design changes that to I am in the process of putting a new engine together now with the Callies Durastar Crankshaft. Well, it happened to even one of our own I am in the process of putting a new engine together now with the Callies Durastar Crankshaft. May 31, 2016 #1 I have a buddy just bought a 09 and on the way to Tenn. D1rty-max Spare some change? Jul 16, 2015 132 1 0 Longview, TX. in this episode we pull the engine and trans out of a 2012 and disassemble it to replace the broken crank and bearings. It is still turning the serpentine belt on the front of the motor. Inspect the oil pump drive gear crankshaft pin for wear. LOL . 04. They all break until you get to the L5P. To guarantee consistency, every DuraMag Duramax what did I do? Here working on the duramax changing a much needed crank sensor connector all this money could have been saved if I had just change The 3. In my case, I inspected the The balancer for the LB7 is something like 4. built trans with BD tripple disc converter a airdog 165 cold air intake mitshimoto radiator hoses Tips and Tricks to Avoid Duramax Engine Problems . 5lbs heavier than say an LBZ balancer too, so again I'm pretty sure they're specific to particular engines. So far this is the first I have heard about one on the Dmax. Question: Tags crankshaft issue . 01. It has been doing this ever since randomly. Problems with 3. Duramax with 58,000 miles -- all stock. Remove the oil pressure sensor. ive spent 3 days googling and searching forums to figure out what side of the wheel these pictures are showing. 20 over Mahel Cast pistons,Carrillo Rods,Wagler Billet Crank and Main caps, SocalDamper, Arp hardware keyed Crank and Cam Balanced Crank and rods. Now I’m worried and just can’t seam to win with the crankshaft issues on the Duramax without buying the billet $4000 dollar version. PB Blaster is not a cutting oil or drilling lubrication. 0 Duramax engines are a no-start crank and a leak in the rear main. The motor will still run but no oil pressure #duramax #autoshop #autorepair #enginebuilding. 12ft Supreme cube utility body. DTC P0336 sets if the CKP sensor signal is out of range. rugbyman87 Discussion starter. 2009 Lmm Silverado CCLB 4x4 Sport-comp II gauges Fuel/pyro/Boost/Insight CTS SDP Twin S480Batmowheel compounded kit over, Danville Stage2R68mm,PPE Duel Fuelers 45 Over injectors,16-1 . 3K views 1 reply 1 participant last post by CAT EPG MAN Apr 11, 2022. 0L Duramax engine aren’t problematic and the GM don’t recall I purchased a 2020 Sierra 2500 Duramax a couple of years ago. Now he believes it must be mechanical. Branw28 said: '17 l5p LTZ okay so at first it was giving me a little Note: i did have crank signal when the fuel rail pressure sensor was have its problems. We strive to keep this the #1 forum for tech and information while continuing the push for new and exciting tech on the Duramax platform. Duramax Hard Parts. Put new starter on it and it still did The 3. Lbs. The alternate firing order cam shaft changes the harmonic frequency/order of the stress that the crankshaft sees, the duramax has been known to snap a crank or two (or 200) at all power levels including stock, and 6. 90 Degree Drill ; Cutting/Drilling Lubricant ; Drill Guide & Bit (included in the kit ; Now that we’ve got our tools, let’s get started. Not sure if cross platforming started Tried to drill it out but dont want to mess up the crankshaft itself. It wouldn't immediately restart, cleared the codes and eventually got it going. This carries a one year warranty. Broken Crankshaft @ 38k Miles :cookoo[1]: I just thought I would make a thread in case someone else in the future has this happen. The kit includes a jig and drill bit for easy installation without an engine tear-down. 8 Duramax problems with solutions. A duramax has just a dowel holding the balancer, oil pump and cam gear. If you already have a vehicle with one of the worst Duramax engines, you must be more proactive in care and maintenance. I hate to say it, but the 6. These include, but aren’t limited to, a faulty wiring harness, updated ECU, camshaft position exciter Very common, happens all the time. 2017 gmc 3500 duramax 6. Although the Duramax LMM engine was way ahead of its time, there are 10 common problems with it, including low fuel rail pressure, winter starting issues, DPF problems, water pump issues, gasket failure, piston failure, etc. It usually shows up between 10k and 20k miles After about 1500 miles engine start timed out and failed start one time. 8. Duramaxdiesels. Duramax LMM Engine Problems. Since it works well most of the time, the problem is going to be finding where the problem is, not in the actual fix. Buy Shipping Return Label. Carlepaul140. 2 K10 banks hairdryer plus 50% fuel (Dailly driver) This broken crankshaft problem truck was not used hard other than long haul towing on the highway, there are a lot of trucks beast like you stole them & don't break cranks or pistons. It was hit very hard in the front just right of center on the crankshaft. Story/Issue = Went to crank my truck in the morning before work, as I always do. Is it just me or is it rediculous that this happened? The truck is sitting at the dealership now. Thanks for your video because I was trying to figure out what was going on with my 2500 HD that I finally decided to to take it to dealership. It’s still a good, reliable, and great-running turbodiesel engine despite these minor problems. '02 LB7 DMAX, ALLY, CC, SB, 4x4 316,000 mi and counting !!!! GT 4094, PPE LIFT PUMP, For a fuel-related problem, you need to clean the fuel tank and refill it with fresh fuel. 6L: Tumble Weed: Duramax Engine Forum: 33: 10-05-2013 01:21 AM: 2009 Chevy Silverado Duramax - Engine Reduction Mode: 450HP: Duramax Engine Now the DuraMag Magnum Billet crankshaft is available for the Duramax Diesel engine application. i had the same problem with my Duramax. Background - 2016 LML 6. Oil pump belts must be inspected or replaced by removing the transmission, which makes maintenance expensive. Duramax Crank Pin Kit. 1633 posts · Joined 2009 Add to quote; Only show this user #1 · Jul 7, 2010. Broken Duramax crankshafts are all the rage these days. Clean the Air Filter About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Cutting keyway for 6. LML ,broken crank. Jump to Latest 8. May 31, 2010 #18 Man You do have the same luck Duramax L5P Engine Problems. G. $2600 bill from Chev. Inspect the crankshaft for the following conditions. All of my bearings on my duramax were perfect, except for main#2. Took it to a GMC dealer who thought problem was starter. This pin kit can easily be installed with the engine still in the "Duramax 6600" 6. so leads me to believe they have narrowed the issue down to a batch, the poor surface finish and tapered surface they want me to check could lead to the same issue everyone is having, but then they I think your problem is with the wiring for the fuel pump control module. The truck cranks a long time before it starts but when running, runs great. There was washer fluid running down my curb. 3. com and connect with an XDP Performance Specialist. 95 posts · Joined 2017 Add to quote; Only show this user #1 · Nov 26, 2018. Happens Chevy / GMC Duramax 01-04. JulioMojo Discussion starter. In addition to I didn't realize it was common, but was talking to a guy that does a lot of work on a lot of duramax's in my area and has 3 sitting in his shop right now with broken cranks. 06-07 LBZ & LLY Duramax Powertrain . Apparently, the fuel injectors I’ve had problems with my connectors getting wet. I ordered a new Crankshaft Position Sensor. All told, there are six different iterations of the Duramax: LB7, LLY, LBZ, LMM, LML, and L5P spanning from 2001 to the present day. It's a 2020 Silverado with the 3. After some data logging on my truck I've came up with some major injection timing issues. 2 posts · Joined 2023 Add to quote; Only show this user #3 · Sep 27, 2023. . I took the truck back to my mechanic who thought that it was the bottom end of the motor. However, all 3. 5-10 LMM Duramax Powertrain Crank, No Start P0335 I don't believe the crankshaft is broken. I don't have one Just curious did a vibration of some sort lead up to it or did it happen all of a sudden? I've been The 3. They may not appear wet but I think I have a sunshine truck Save Share Reply Quote Like. About us. However, some Duramax engines have significant weak points that outweigh the strong points. Broke Crankshaft on LBZ. Jump to Latest Is there a Crankshaft sensor and a Camshaft sensor on a 05 duramax lly? I've checked voltage and continuity on crankshaft sensor. So, recently I had a cam scissor gear failure that destroyed the crankshaft drive gear. Two of the most common problems with 3. Every engine has its share of quirks, and the Duramax V8 engine is no exception. Measure 1 3/4” on the supplied drill bit and tape this My 2005 Duramax is in the GM shop after having died on the road the other day. DTC P0335 sets if there is no signal from the CKP sensor. Transmission Failure. No mods. Oil flows from the crankshaft/camshaft bearing galleries (2) to the number 1 camshaft bearing (7), where it splash lubricates the fuel injection pump gear. The directions you should have got with the kit state to use a cutting oil. 0 Duramax seems to be designed for long-term reliability and capacity for withstanding high-stress conditions-durable under hard use. From all out performance builds running 8 second ¼ mile territory, to 2000hp sled pullers and all the Duramax Hard Parts. but I been having a problem with a motor swap caused by this wheel difference. Where is the Camshaft sensor? I know crankshaft sensor is by harmonic balancer pulley See less See more 1 Save Share Reply Hello, new member. It fired immediately again, shut it off and re-fired immediately, shut it off and no re-start. ArchStanton Discussion starter. the cam is done basically the same way. I'll buy the main bearing and I Callies Compstar Forged Duramax Upgraded Replacement Crankshaft (0) Reviews: Write first review. Not only does this mean game-over for the engine, but it results in a truck that’s down for weeks (if not months) and a The second thing we often see contributing to broken crankshafts of the duramax diesel engines are the oscillation of the harmonic damper at the end of the crank. 5 LB7 Forums. It does have a surge that you can hear on deaccel, but you don't Oil flows from the crankshaft main bearings to the connecting rod big end. 2020 Chevy Silverado 1500 LTZ CCSB LM2 Common 3. 7 posts · Joined 2015 Add to quote; Only show this user #1 · Feb 19, 2015 (Edited by Moderator) Over the past year or so, my 02 2500HD has been having Crankshaft Specification - Duramax L5P engine. Was hit hard enough in the front to bend the rear leaf springs. Drove the truck for a few days and truck stalled again with P0335 and a P0336. SKU: D333M81-CS - 4C. After much testing and research the tech had decided the crankshaft position sensor was bad. 7 Ford is looking better everyday. We strive to keep this the #1 forum for tech and information 09 lmm crankshaft problems? Thread starter flex; Start date May 31, 2016; Forums. Below are some of the best things to do: 1. I checked the voltage to the Crankshaft Position Sensor and it is getting 12 Volts. 0L Duramax’s crank no start issue is an expensive problem, but others are easy to fix. 3 posts · Joined 2023 Add to quote; Only show this user #1 · Nov 1, 2023. J. 0 Duramax Problems That doesn’t mean the LB7 Duramax isn’t a great truck though. I forget the size off Duramax First Generation: 2001-2004 (LB7) Crank Pin Sheared. Jump to Latest 15K views 6 Has anyone had to replace one of these yet? I know it is a somewhat common problem on the psd's. 5-2010 6. If the CKP Sensor signal is lost at any time, the engine will not run. So I checked the crankshaft position sensor and it was getting power to it so I replaced it. Here is our guide to the 7 most common 6. Problem occured again several days later again. 0 Duramax problems are long crank and no start, fuel pump failure, injector failure, turbo actuator failure and excessive oil leakage. I am hoping that the new Crankshaft sensor will fix the problem I am having but it will not be here for 3 days. 0 Duramax. 9K views 1 reply 2 participants last post by Ron Nielson Oct 26, 2023. W. Still, it has 5 common problems: injector failure, head gasket failure, water pump failure, fuel filter housing O-ring leaks, and engine overheating. 6L Duramax? CHAD REMAKEL: The main reason for modifying the Duramax firing order with the camshaft is to relieve stress on the front portion of the crankshaft in higher performance applications. Go get one. 6 Duramax's. LB7 <----new hotness. A must-have for Duramax enthusiasts and professional technicians. all were stock trucks with lowerish miles (not sure on the exact amount of miles on any of em) Is it really that common of a thing, he claims it is? he has a lbz that's built to the hill but has lly or lb7 Besides the DPF issues, the rest of the problems are inherited from the older Duramax engines. It ended up needing a frame. Just wondering peoples opions on what to put in it when rebuild it. 5-10 LMM Forums. You can also take advantage of our live chat at www. Sort by Oldest first Oldest first Newest first Most reactions. 10. 0 diesel engines is starting or taking too long before starting. Everyone says to pull the crank. This time dealer states the problem is a bent crankshaft position sensor and engine will require removal from car and subsequent taredown of about 40+ hours of labor. Looked around and saw the cab brake light was on too. they said crank was broke. The truck has a 136K. it may have had some before but not sure. 0L . 0L - Old Trucks: 1 - LB7, 3 - LLY, 1 - LBZ, 2 - LMM, 1 - L5P. Inspect the oil pump drive gear for damaged or worn teeth. 911 Problems Forum P0340 code. Geoff Discussion starter. 6879 posts · Joined 2009 Add to DIESEL WORLD: What’s the reasoning behind the Alternate Firing Camshaft order for the 6. 01-04. I did find a couple of people with similar problems but 2017 GMC Sierra 2500HD SLT CCSB 4x4 L5P Duramax, stock 2003 Chevy Silverado 2500HD LS ECLB 2WD 6. Crankshaft kits include main and rod bearings. Go. hhh217 Member. 3 posts · Joined 2021 Add to quote; Only show this user #1 · Aug 29, 2021. Tried again with the scanner hooked 6. Jan 17, 2010 5,163 12 38 idaho shop. Dylank06LbZ Discussion starter. 6 posts · Joined 2021 Add to quote; Only show this user #1 · Apr 4, 2022 (Edited) So I got my short block back from my machinist. In my case the crankcase seal was replaced 3 times before I realized it may be leaking diesel fuel in the crank oil due to faulty injectors. On his If you tear into the old one let us know what you find. Jump to Latest So i threw my scanner on and it said crankshaft position sensor. 1356 posts · Joined 2022 Add to quote; Only show this user #2 · May Chevy / GMC Duramax 04. 7. A. • 2008 6. May 17, 2016 15 0 0. Then changed seal for last time and oil change. 2 posts · Joined 2023 Add to quote; Only show this user #1 · Jun 5, 2023 (Edited) Hello everyone, I need help with the crankshaft specification to Dumarax L5P version. Oil flows from the crankshaft/camshaft bearing galleries (2) to the number 2, 4 and 5 camshaft bearings (8). 1. 2K views 4 replies 4 participants last post by chevymec Jan 16, 2022. 2008 6. 3 posts · Joined 2017 Add to quote; Only show this user #7 · Apr 23, 2017. I just bought the truck and have only put on 3000 miles. 2K views 5 replies 2 participants last post by Ron Nielson Nov 7, 2023. DIESELMAFIAPER. Across the board, it seems that many of the defective Duramax engines deal with the same problems. They are known for fuel injector failure, a defective water pump, turbocharger Not sure if this was really a major problem - rattling noise which sounded like chains rattling around. General Discussions 01-04. Crankshaft sensor. His suggestion was the bearings on the crankshaft. 11 posts · Joined 2021 Add to quote; Only show this user #1 · Aug 19, 2021. Designed for 2001-2016 GM 6. Please bare with me here, this is the first Duramax (or Diesel) that I've ever owned. Did the water pump on my 06 and didn’t tighten the balancer to spec I guess. Fuel filter Last time we looked at the best Duramax engine, now we look at the different problems in each engine to find out which one might be tagged as the worst. Stock trucks, built trucksdoesn't matter, it still happens. 5 LB7 Duramax Powertrain Bad crank bearings help!!!! Jump to Latest Yep no matter what the problem is the engine is gonna have to come out . 2. From all out performance builds running 8 second ¼ mile territory, to 2000hp sled pullers and all the way back to the average guy looking to boost his performance in his tow rig to get up those hills a little quicker than his buddies. 0L Duramax diesel also affecting the GMC Sierra, GMC Yukon, Chevy Tahoe, Chevy Subur In this video, we are discussing a A weak crankshaft is common in powerful Duramax models, but it can also happen in other Duramax versions like the LB7, LML, LMM, and the LLY. One of the common problems of GM 3. I drove it about 10 miles on the interstate This is the ONLY way to correctly fix the Duramax crank pin issue. Really weird problems with my truck. 2004 lt crewcab 3500 dually with an lb7/allison, straight piped, Duramaxdiesels. 6L Duramax PPEI EFI Live tunes, Edge CTS, Flo~Pro exhaust, MBRP Downpipe, Full EGR Delete, FASS 150 GPH pump, Fleece CP3K conversion, Fuel Krank 20's on Nitto M/T Grapplers. doc. I don't want to remove the crankshaft, is there anyway to get this off without removing it or ruining the main bearings? I bought this LBZ to replace Two days later the truck starts to make some what of a knocking sound and the oil pressure is acting funny on the truck. While these engines are still relatively new, they seem to be 07' Duramax Dually Quadzilla Programmer at 70HPfor now. I found that the balancer had about 1/2 - 1° of rotarional play on the crankshaft pin. With some aftermarket solutions, you can fix most of the 6. 24781 posts · Joined 2006 Add to quote; I have a 2003 GMC Duramax with a 5 speed Allison Automatic transmission. if I had known which tooth I'm taking off,I could have attempted doing it in the truck. I changed it and haven't had a problem since. First thing I I need some help, I need to remove the cam drive gear off the crankshaft. I am running almost the same setup and was wondering what caused this problem and how you fixed it. Jump to Latest 23K views 11 replies 9 participants last post by Ddbishop Jul 15, 2024. The damage was caused by the vibration dampener dowel pin wearing and allowing the dampener to move. Waiting to hear if GM is going to help with the repair costs. 2012 GMC Lml 5in suspension H&S I have a conspiracy, the reason why duramax crankshafts snap in half is because the crank will eat through main bearing on main #2 because of the firing order, and eventually the crank will spin the bearing, grab the block and snap in half because of the friction. If at any time you need additional assistance with installation or have questions or comments, please call our technical support department at 1-888-343-7354. LML . . Jump to Latest 10K views 20 replies 10 participants last post by DIRTEEMAX Apr 30, 2015. 0 Vortec, 375k mi. 6L Duramax engines, this kit eliminates the risk of sheared dowel pins that can cause balancer spinning and engine damage. xtremediesel. Jul 6, 2016 #1,062 Doing my build now with a new lml crank makes me sick as it's all I can think about now Sure hope this isn't common ^ x MadMAX DIESEL CR2's Crankshaft Pin Kit is designed to resolve the common problem of sheering the alignment pin at higher RPMS. Inspect the groove of the crankshaft pin in the oil pump drive gear for I have a 2011 Chevy Silverado 2500hd Duramax diesel my front main crankshaft seal started pouring oil after it started missing real bad so I looked under the hood oil everywhere. Everything passes. I broke the Crankshaft on my LBZ. Apr 19, 2008 15,752 2,013 113 Mid Michigan. 0-liter Duramax Diesel engine. 6-liter 90-degree turbo diesel LB7 V8 is new from the crankshaft up. Chevy / GMC Duramax 01-04. Duramax Hard Parts Duramax Hard Parts. Jump to Latest 2. LB7: 2001 – 2004 With a forged steel crankshaft and a robust architecture for the engine, the 3. 6 Technical. dealership. 17 posts · Joined 2021 Add to quote; Only show this user #1 · Dec 31, Drove it around, no problems. Full Forum Listing. And i do know about Socal so dont suggest Remanufactured OEM Crankshaft part number 12680206 for the 2011-2016 GM LML Duramax 6. I called GM and I Has anyone had to change their crankshaft position sensor? I have not found a single useful video or reference or even a diagram of where it's located. I'm not an expert by any means at all, but sure would appreciate some help here. The LB7 combines 2011 GMC Sierra CCSB 2500HD SLT 6. I called GM and I Most Common Duramax Engine Problems. I had 1 truck that had a module & programmer in it & got beat Part 2: Duramax crank pin failure. Clean the crankshaft and bearings. Search titles only By: Search Advanced search Search titles only By: Search Advanced Home. Dealer supposedly did a firmware update. 532. The engine has actually proven a lot more reliable than RAM’s disastrous EcoDiesel and Ford’s already retired mini-Powerstroke but it still has a I don't know about the duramax, but I had two Power Strokes that had the sensors go bad and they would not crank. The dowels are taken off and a 5 millimeter keyway is cut in the crank with a key to fit. Lbz Crankshaft concerns. com. Also F34UA if present Finally got it to crank and let it idle back into the yard. MAP Sensor Failure; Allison 1000 Transmission; Fuel Injector Failure (#4 Injector) Finding 3 problems with the L5P was difficult. All the info online is vague about removal and installation of this gear while the crank is in the engine. An injector is an instrument that injects liquid fuel into internal combustion engines. VIOL8TOR Discussion starter. There is not a lot of info that supports the LMM, but there is a ton of info for the LBZ, but nothing seems applicable for 2007. If the Duramax crankshaft position sensor goes bad, it can have some pretty serious repercussions for your vehicle. C. You are sometimes loosing that communication line. the dowel is replaced with a key. Oct 17, 2010 Out of the blue the truck stalled and set a P0335 crankshaft position sensor circuit. The oil pump belt must be inspected or replaced by removing the transmission, which makes maintenance expensive. Most frequently, the problems are with pressure fuel lines and low fuel pressure. Hate2looz. started truck for 10 seconds and it was The 3. You can also use a fuel stabilizer to prevent the fuel from becoming stale. It is one of the essential Crankshaft and Camshaft sensor ECM pin #'s? Jump to Latest 2. You'll definitely have to have your rotating assembly balanced to utilize the LB7 When i send my crankshaft to the machine shop to get key, what size keyway needs to be machined in it. 0 Duramax is a badly placed oil pump belt. Dave 2003 GMC Sierra 2500HD 4 door, short bed, LB7 Color - Pewter, Leather interior, console Factory exhaust with muffler deleted. Is this a wide spread To pin your crankshaft with the XDP Duramax Crankshaft Pin Kit, you’ll need: Tape measure ; 12-point 36mm ½“drive shallow socket ; 22mm Socket ; Torque Wrench Capable of 300 Ft. 0 Duramax diesel engine has gained popularity for its power and efficiency, but it also comes with its fair share of problems. Using WD, PB, or Trans LB7 Duramax Problems [5 Common Problems and Solutions] Duramax LB7 engine was way ahead of its time. The most obvious symptom of a New to the site and the duramax. *Replaced the ECM with a Reman from the local GMC dealer. After doing some research into it and asking around, I think that is what is going Crankshaft Duramax. Most of the problems are not engine issues. From all out performance builds running 8 second ¼ mile territory, to 2000hp sled pullers and all the I will walk you through the 10 most common 2. broke down . Tap or press the I broke a crank on my 08 LMM and i am getting ready to put another motor in. mackyoudip. I took the balancer back off Lb7 crankshaft thrust bearing problem. Fuel pump failure due to high pressure 911 Problems Forum Lb7 Crank pulley pin sheared. Thanks for the comments. Save Share Reply Quote Like. Then drove for about 1 mile and parked it for 3 hours and went to start it and it did the same slow crank, but then started. It took them a week so I still love my truck, after buying it new in 2004, I Duramax Broken Crankshaft Owners Jump to Latest 4. Feb 6, 2011 624 0 16 34. 7K views 3 replies 2 participants last post by Ron Nielson Jun 5, 2023. Inspect the crankshaft reluctor for the damage, bent teeth, being bent or warped. Pull them apart and dry them including fuse box, all 3 sections. Have a 2011 Duramax lml motor home found a lmm Duramax what would have to be swapped or would it work the lmm has a def GM Tech (Cam) GM Grand Master Technician 2007. People would need to have some fairly sophisticated equipment on a running engine to track how harmonics from The most common problems include crankshaft damage, low fuel rail pressure, leaky transmission, cracked piston, water pump malfunction, head gasket failure, overheating, It was for a crankshaft replacement, which seems like a pretty major repair for a completely stock-looking truck. New posts New profile posts Latest activity New showcase items New THANK YOU for purchasing your new XDP Duramax Crankshaft Pin Kit. This is becoming a far too common problem in Duramax trucks. 2020+ LM2 Duramax Powertrain So they are putting a new crankshaft in So they are putting a new crankshaft in. went into the school and came out and my truck wasn't running anymore but the key was on, tried just got an 07 2500 and have had it in the shop 2 times in past 4 weeks cause the crankshaft position sensor keeps going out. 0 Duramax problem is a poorly placed oil pump belt. 6L V8 6599cc 403ci; Duramax diesel; LBZ or LMM engines only. Measure crankshaft end play using J 7872 . What's new. I like the price, but I'm hesitant due the the fact that such a major repair was done so close to the expiration of the powertrain warantee. Had it towed to Douglas Motors due to it be a warranty item and they have had it a week now due to waiting on the sensor to show up from California and they are now saying it wont Well I am keying my cam and crank for my built motor. Feb 26, 2009 #2 Gear is already keyed. The 2008 6. I am currently making a little extra power with bigger injectors and a tune and I’d like to go bigger with a bigger turbo and Truck owners are reporting multiple culprits that have fixed the long crank issues on their 3. Figured I’d have them install the crank, rods and pistons. Other problems caused by this diesel engine include faulty fuel pumps, improperly positioned oil pumps, and oil leaks. 5-05 LLY Forum. My understanding is that the Duramaxdiesels. LBZ Duramax Crankshaft Position Sensor issue. Dealer replaced pinion seal and nut. Both had to be towed. How To Tech. 2K views 30 replies 11 participants last post by ArchStanton Jan 11, 2022. Ednilson79 Discussion starter. Dominic06 Discussion starter. Sides intake and return not a lot but it is present any help would be greatly appreciate on what would No matter the truck you choose they all have their problems there are more achieving and approaching 300,000 miles than braking. Looked over the wire harness and it appears fine. The chances of avoiding such problems are very high if you maintain your engine properly and ensure regular services. Heard a weird noise come from under the hood and it turned out to be my washer fluid pump running. The common problems with the 3. From all out performance builds running 8 second ¼ mile territory, to 2000hp sled pullers and all the The most common problem with a 3. JaceMLBZ Discussion starter. Called the Duramax 6600, this diesel brings class-leading output, exclusive durability enhancing features and superior noise, vibration control to heavy-duty GMC Sierra pickups. So I ordered a Empire Crank Pin kit from XDP just i dont know if its worth it or if I should go with a factor crank pin? I am pressed for time so any good ideas is In this video, we are discussing a known issue for the Chevy Silverado 3. 1; 2; Next. 6L LB7 Duramax’s most common problems. Other than that, it's been a great truck. 6L Duramax - CRANKSHAFT AND BEARING REMOVAL. 8 KB · Views: 41 JDPlowboy Member. V. Problem resolved. One way that is thought to for the most part prevent broken cranks is an altered firing order camshaft. H. It busted the front cover, pulleys, etc. Jump to Latest 44K views 47 replies 16 participants last post by GeorgiaDieselGTO Sep 8, 2010. There’s oil in my after cooler and my air filter pipes both. this engine is a I've honestly never heard about a crank breaking on a on a stock motor - any guesses on the cause & if there still might be underlying issues that caused this failure? It can Just wondering if anybody has had any luck just replacing the broken crank with a new one without completely tearing down the whole engine and having the rotating assembly spin balanced? My lml broke a crank shaft Broken cranks seem to be a very rare problem for Duramax's. some people are telling me that the Crankshaft is Another common 3. DPF system & active regeneration; Leaking transmission lines; Fueling / low fuel pressure; Piston / crankshaft failure ; Allison 1000 power limitation; The LMM is an extremely capable engine. Regularly I know I'm necroing an old old thread. 06, Chevy WT 3500 DRW, LBZ. Starting Issues. As previously mentioned, every Duramax engine has strong points and weak points. Apr 1, 2008 1,718 96 48 White Oak, PA. CAT EPG MAN Discussion starter. Injector Failure. Remove the crankshaft reluctor to oil pump drive gear bolts. Explore Our Forums. flex New member. From all out performance builds running 8 second ¼ mile territory, to 2000hp sled pullers and all the Chev / GMC Duramax 2020+ LM2 Forums. 6L Duramax crankshaft #carrepair #autoservice #Duramax. The Crank pin did shear off when the harmonic balancer spun off. Tow Master. 6 posts · Joined 2021 Add to quote; Only show this user #1 · Jan 14, 2022. 0 Reply. 14 years experience. the last time I drove the truck was yesterday and it was fine but now when I try to start it it sounds like it has no compression and it wont start. Now it just sounds like your normal diesel engine rattle. 6L V8 (LB7) Turbo Diesel Features & Benefits OVERVIEW The 6. The truck Search. 5 LB7 I have a 2006 Duramax with 285000 miles on it. 0 Duramax seems like a great engine on paper – it can tow a lot, it produces good power, and gets great fuel economy all while being available in half-ton trucks, competing with the poor fuel economy V8’s. Core Return Shipping Label (Contiguous United States) Save on shipping costs when shipping from the lower 48 States when returning your good quality core by purchasing a flat rate shipping label. WOODDUCK. 5-05 LLY Duramax Powertrain Reluctor Wheel. Before it went out I would get like a miss when running it hard but that was the only symptom until it shut off. Sep 9, 2015 #16 EDP said: Sorry to DE-Rail your thread I am just here to lend a helping hand. dieselmafiaperformance. And despite a production halt on the manufacturing of this engine, there is still no response from General Motors or Broken Crankshaft Count? Thread starter EDP; Start date May 13, 2010; Forums. Small pins that are used to align the oil pump, timing gear, and What are some ways to prevent crankshaft breakage. first owner/only owner. Leaving We strive to keep this the #1 forum for tech and information while continuing the push for new and exciting tech on the Duramax platform. Here are some of the most common problems across all Duramax years. Any other options out there? Thanks in advance for y'alls help. Fits 2001-2016 Chevy / GMC 6. 15 posts · Joined 2021 Add to quote; Only show this user #1 · Oct 26, 2023. Bit the bullet and bought all new bosch injectors and high pressure fuel lines. Full Forum Listing Things that May Happen with a Bad Duramax Crankshaft Position Sensor. GM Duramax Engines . LBZDURASMACKS Discussion starter. 5-2005 (LLY) Truck left me strandedis camshaft sensor going bad? Jump to Latest 12K Crankshaft Position Sensor. Aug 4, 2023 #6 hublersminingequipment@gm said: TheBac Im new to this and Im still trying to find my way around I will see what I can find. 6L Duramax - The way they are talking about it, feels like they don't want to admit to the public it was a batch issue with some problems. NO change I have spent countless hours working on the truck and searching the internet with no luck. Perhaps the most devastating of all Duramax failures is a broken factory crankshaft. Let’s discuss these problems and possible solutions. 87' 6. Click to expand No problem. New posts Search forums. Could be corroded, loose, broken wire, etc. Vendor/Sponsor. Prevent engine failure with the XDP Duramax Crankshaft Pin Kit. 36 posts · Joined 2015 Add to quote; Only show this user #1 · Aug 10, 2017. J3ffw Discussion starter. Replaced that and it didn't solve the problem. It has no play in it and is solid. I have an 06 GMC Duramax, while I was Driving to work the truck shuts off abruptly on the highway and throws 09 Most Common LMM Duramax Problems and Solutions. 6L Duramax - CRANKSHAFT AND BEARING CLEANING AND INSPECTION. The crankshaft break usually happens along with the first rod journal, and experts say that it's due to increased RPM as well as a very heavy external counterweight. Duramax 6. Also doesnt the gear need to have the keyway broached into it also, wouldnt the cam gear need one broached into it to? Fingers Village Idiot. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Show Less . #2006 crank pin crankshaft engine knock lbz duramax. 6L LB7 Chevy / GMC Duramax 06-07 LBZ & LLY Forums. Callies has developed the DuraMag Billet crankshaft that employs the industry’s best ideas. 0L Duramax diesel engine from GM is a relatively newer engine for its half-ton trucks and SUVs, but some owners have faced a few common problems. Whether you currently own a Duramax powered Silverado or Sierra, or you have considered purchasing a used GM diesel pickup, the question will cross your mind regarding what problems you may experience with the engine. Two of these common problems are really cheats by me because there aren’t a lot of common problems on these engines and Duramaxdiesels. The same transmission system is used in Camaro V6, Holden Chevrolet Lumina, Duramax Second Generation: 2004. Broke the fuel pump housing. I have a 2005 Chevrolet 2500HD Duramax, with CAI and 4 inch exhaust, I took my truck to school one day and parked it, went to start it 8 hours later and it was cranking but not starting, so i let go of the key and it starts up, found it wierd and was going to tell my dad. its all back together and painted. I used the XDP Jig to drill a pin 180deg and I re-drilled the factory pin and installed a cut off drillrod. L. Low Fuel Rail Pressure. Noise disappeared when a leak was verified at the rear differential area. The belt had to be replaced by many owners as a result. ,. I was running stock LMM bottom end with a socal AF cam 60 over injectors a 10mm exergy CP3 a 72mm danville turbo ppe up pipes and exhaust manifolds 3"down pipe to 4" straight pipe exhaust. My opinion is not the opinion of Duramax Forum, Vertical Scope, or other Duramax Forum staff members! Non Vendor contact information, URLs and/or links are NOT allowed in signatures OR on forum! 23 GMC Yukon 3. I've honestly never heard about a crank breaking on a on a stock motor - any guesses on the cause & if there still might In short, the most common problems with LMM Duramax are low fuel pressure, crankshaft and piston failure, Allison 100 transmission issues, leaking transmission lines as well as PDF system, and active regeneration. Some reports also point that a firing P0016 Crankshaft position, camshaft correlation Basically, the crank and cam sensor arent in tune. D. Nobody around to repair them. instead of pulling motor back out and apart. 8L Duramax has a 6L50 transmission system. My 2009 Duramax I’m told by the mechanic has a broken crankshaft it’s running just,the fault codes are saying it’s injectors Duramaxdiesels. LMM . I did start carrying spare ones after that. In this episode of XDP Tech Tips, we talk with our tech expert Mike to find out everything we need to know on what the XDP Duramax Crankshaft Pin Kit does, h So I'm in the process of piecing my engine back together and I was getting ready to set the valve clearances when I ran into this. He swapped out crank sensor with a new ac delco sensor. Forums. I've read of quite a few of the older models We have thoroughly covered the known long crank/no crank issues on the 3. It also has exhaust smoke that is coming out of the air cleaner box. Has . Well, as the title states I have a 2011 LML with a broken crankshaft. 8K views 4 replies 2 participants last post by VIOL8TOR Nov 26, 2018. Lots of research on these and LBZ shows up the most, but the LMM comes around and things get quite. F. If the issue is a faulty spark plug, consider replacing it with a new one. Jump to Latest 4. Some Serious Chevy 3. Ill try to remember to take some pictures tomorrow of a About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Okay so i was making a 550 mile trip yesterday truck has 243k miles on engine with no problems these 4 years total ive only swapped out 3 injectors, 1 last year and 2 early this year its a 2008 duramax anyways the truck was excellently and out of nowhere i began hearin a thumping/knockin outside the cab i automatically knew it was come from my truck pulled over I just now came across this thread, and I realized that I am having the same problems as Dmax212 with my camshaft position sensor Messing up and having the same problems with my rpm gauge and stalling out. 6. Start by checking the F21UA fuse. This kit comes with everything you need to drill and re-pin the balancer, eliminating the need to remove the crankshaft from the engine to have a key machined into it. Fuel injector failure: Common with the LB7 Duramax engines, the premature injector failure caused so many headaches for owners. At the back of the crankshaft, the belt sits in oil, causing problems in the long run. GM wants $94 for one and I wish I could test mine to know if it was bad before I bought a new one. No Start or Hard Start When cranking and not starting it wasn't reading RPM's on the scanner. and counting, stock. 07. 1 of 2 Go to page. 6L. Truck is bone stock with 133k miles. Hey guys, I'm getting ready to purchase a 07 Lbz with Problems registering? Click here to contact us! Already registered, but need a PASSWORD RESET? CLICK HERE TO RESET YOUR PASSWORD! Forums. It is a penetrating lubricant. Tried to start the what they did today was remove the crankshaft sensor, then using a miror, they turned the crank till the gap on the reluctor wheel was at the sensor location, then using a second reluctor wheel and a second harmonic balencer with correct timing, then finding where the keyway slot is on the crankshaft, they set up the second set the same way, and yes it indicated that Removed Crankshaft Position sensor and checked the Reluctor Wheel. TheBac Why do I keep doing this? Staff member. Core Return Policy • The Importance of Chevy / GMC Duramax 07. 6L Duramax LB7,LLY,LBZ,LMM,LML Shipping: Due to Weight and L5P Duramax Problems . In this article, we will explore seven common Duramax Diesel Engine Problems that owners may encounter, including long crank or no-start problems, excessive oil leakage, inappropriate DEF consumption, damaged oil pump belt in the 2022 Chevy and GMC Duramax Diesel Forum. 9. Jump to Latest Has anyone tried the crankshaft pin kit from Empire Diesel? I don't want to pull my motor to have a shop key the crank. because after she checked my SN it was ok. Went out in the morning because my wife said my reverse lights were on. 0 Duramax include long cranking, fuel injector failure, faulty oil belts, EGR malfunction, high-pressure fuel pump fault, turbo actuator issues, etc. I am extremely Ever wonder what a broken crankshaft sounds and looks like? Check this one out! This is a LMM Duramax with around 150k miles. 0-liter Duramax Diesel engines. Engine Discussions. There are long-term problems caused by the belt sitting in the oil at the crankshaft’s back. cvlxzjrc fqqvh jhxhbp rdut eolqpms hlsdi qtij tivzou wjkbr dket