5 FATAL FLAWS OF THE DURAMAX—AND HOW TO FIX THEM | …
From drivingline.com
Snapped Crankshaft. Perhaps the most devastating of all Duramax failures is a broken factory crankshaft. 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 huge chunk of change missing from your wallet.
CP4 Failure. This one is specific to the LML code Duramax produced between ’11-’16, which used the Bosch CP4.2 high-pressure fuel pump (vs. the predecessor CP3 found on LB7, LLY, LBZ and LMM engines).
Bent Rod(s)—LB7/LLY. We’ll be honest, experiencing a tweaked connecting rod in an LB7 Duramax (’01-‘04) or LLY Duramax (’04.5-’05.5) is almost exclusively reserved for engines making double the factory horsepower (or more).
Cracked Piston(s)—LBZ/LMM. Even though the ’06-’10 Duramax's are equipped with slightly stronger, forged-steel rods than what was used in the ’01-’05 engines (LB7 and LLY), the problem moves upward, into the pistons, on the LBZ and LMM engines.
Leaking Injectors—LB7. One thing the ’01-’04 LB7 Duramax is notorious for is injector failure. The two primary failure points of the factory injectors are internal cracking of the injector body itself and corrosion-induced failure of the internal ball seat.
2007-2010 FITS GMC GM 2500 3500 6.6L 6.6 LMM DURAMAX EGR Delete & Passenger Up Pipe uppipe KIT in EGR Valves. ... There was a problem adding this item to the Cart Please try again later. We do not have any recommendations at this time . Continue shopping . $199.95 $ 199. 95. FREE delivery February 11 - 21. Details. Or fastest delivery February 9 - 14. Details. … From amazon.ca Reviews 1
Internally, the LMM Duramax (’07.5-‘10) is virtually a mirror image of the LBZ (’06-‘07) that preceded it. It makes use of the same I-beam connecting rods and cast-aluminum pistons, features the same 16.8:1 compression ratio and uses a similar VVT turbocharger. The one area where the LMM differs subtly from the LBZ exists in the Bosch common-rail injection … From drivingline.com
LMM OWNERS: WHAT FUEL MILEAGE ARE YOU GETTING? | THE ...
Duramax 07.5-2010 (LMM) LMM OWNERS: What FUEL Mileage are you getting? Jump to Latest Follow 1 - 12 of 12 Posts ... '08 2500 GMC LMM CCSB 4wd white, 1" rear block, and level kit on 285s...Fab Four replacement bumper....EFI live/4" Diamond Eye exhaust. '06 F-250 Lariat 4wd CC SB 6.0 white/tan on bottom, cab lights 5% tint all the way around. … From thedieselgarage.com
Thread: Duramax LMM ECM problems. Thread Tools. Show Printable Version; Email this Page… July 9th, 2016 #1. mlprine. View Profile View Forum Posts New Member Join Date Jul 2016 Posts 1. Duramax LMM ECM problems I am still very new to EFI Live and using the AutoCal set up. I have a 2008 Chevrolet 2500HD Duramax. I bought it a year and a half … From forum.efilive.com
LMM problems?? Thread starter m&mjenna; Start date Jun 9, 2017; Forums. Duramax 6.6 Technical. Duramax Hard Parts . LMM. 1; 2; Next. 1 of 2 Go to page. Go. Next Last. M. m&mjenna New member. Mar 6, 2017 16 0 0. Jun 9, 2017 #1 Hey Guys new to diesels and the forum. a few things have been happening to my truck and I can't figure out why. Ok so … From duramaxdiesels.com
I have a new 2008 GMC Sierra SLT with LMM Duramax Engine. I now have about 2300 K on it. I am leaving next week for a Northern Trip to a fairly remote area. I will put on about 5000 k on my trip. I stopped by my GM dealer where I got the truck and asked for a Litre of Oil, just in case I ever noticed my oil down during this trip. I expected that I would be changing the … From gm-trucks.com
The Duramax engine has evolved from the original LB7 series to include the LLY, LBZ, LMM, LML/LGH, and now the L5P series. The simplest way to verify which series Duramax you have is interpreting the VIN# of the truck. With some exceptions, the 8th digit is the engine ID and it will either be a 1, 2, D, 6, 8, L, or Y. From activekyds.com
Tomorrow I am doing an emissions delete and tune/mild build on my LMM duramax in order to help with long term reliability and fuel economy. Visible black smo... From youtube.com
DURAMAX LBZ & LMM - WHAT'S THE DIFFERENCE? BY …
GM introduced the LMM Duramax in 2007.5 that included a new DPF (diesel particular filter) and body style. Duramaxtuner.COM's Nick Priegnitz and Bob Petersen... From youtube.com
The LMM (engine code “6”) debuted part way through 2007 and ended production with the start of the 2011 calendar year and is mated to the 6-speed Allison transmission. The LMM was the only Duramax offered for model years 2007–2010. Which Duramax engine is best? Released in 2017, the L5P is the latest a greatest version of the Duramax. It ... From erinbethea.com
The LMM Duramax Engines is a General Motors diesel engine family for light to medium duty trucks. The 6.6-liter LMM Duramax Engine is produced by DMAX, a joint venture between GM and Isuzu in Moraine, Ohio. The Duramax Engine was released in late 2001 into the Chevrolet and GMC chassis vehicles. The LMM Duramax Engines were replacing the old 6.5-L Detroit … From dieselexperts.net
6.6 LMM DURAMAX CHEVROLET GMC COMPLETE ENGINE *NOTHING ...
Complete Assembly Duramax LMM 6.6 works in: GMC Savanna 3500 4500 complete Duramax engine for sale. 2007 Savanna. 2008 Savanna. 2009 Savanna. 2010 Savanna. DURAMAX LONG BLOCK, *BLOCK, HEADS, ROTATING ASSEMBLY* WILL WORK IN ALL DURAMAX LMM APPLICATIONS, BUT WILL NOT BE A DIRECT DROP IN. Call for Current Pricing Share … From dieselredemption.com
WHAT ARE THE MOST COMMON PROBLEMS WITH THE LMM DURAMAX ...
The Duramax block used in the LMM is a high performance and reliable engine, but with some limitations. Allison 1000 power limit. Perhaps it's a very aggressive tune or an upgraded turbo that cracks the pistons and snaps the crankshaft. LMM is a very high performance engine. Two of these common problems are my misconduct, as these engines and drivetrains … From faqautotips.com
LMM ELECTRICAL PROBLEMS - CHEVY AND GMC DURAMAX DIESEL FORUM
LMM electrical problems. Jump to Latest Follow Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge! 1 - 14 of 14 Posts. setexan · The Good Son! Joined Dec 17, 2008 · 1,966 Posts . Discussion Starter · #1 · Apr 27, 2011. I went to fill my truck up this morning and the fuel gage is still showing empty. I really don't want to take … From duramaxforum.com
LMM FUEL PROBLEM - CHEVY AND GMC DURAMAX DIESEL FORUM
LMM Fuel problem. Tags fuel problems lmm duramax. Jump to Latest Follow Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge! 1 - 10 of 10 Posts . C. CGBaker08 · Registered. Joined 9 mo ago · 3 Posts . Discussion Starter · #1 · 9 mo ago. I have an 08 LMM with 290k miles on it. Truck will not idle long without throwing P0087 … From duramaxforum.com
1. level 2. mrgreen1114. · 5y. I have a 2012 LML with stock trans and im pushing 550whp daily with stock trans at 180K miles and no issues, Granted the LML is a little stronger trans I wouldn't upgrade the trans unless you plan on going crazy with the power. The trans tuning helps with the line pressure extending the life of the trans. From reddit.com
In terms of LLY injector problems, GM had sorted out the internal failures with the 2004 ½ redesign, but the LLY Duramax would occasionally exhibit a trouble code for the injectors, but in most cases it turned out to be an issue with the injector harness rubbing through and causing a short or open in the wiring. From janetpanic.com
LB7 6.6 DURAMAX COMMON ISSUES, PROBLEMS, AND FIXES
GMC and Chevy Duramax LB7 6.6 Diesel Common Issues and Problems. If you have a 2001-2004 Duramax 6.6 LB7 diesel pickup or are looking to buy one, here are some common issues and problems we have run into in our shop. Over the years these trucks have been really good performers, but they do have some common problems that we see over and over again. From littlepowershop.com
LML DURAMAX PROBLEMS - DIESEL RESOURCE | YOUR DIESEL ...
Steering component durability isn’t just one of the LML Duramax trucks problems, it’s an issue across the board on all Duramax trucks including the LB7, LLY, LBZ, LMM, and L5P. Cognito and Kryptonite are two well known and respected companies that offer solutions to all of the LML Duramax steering and suspension problems. From dieselresource.com
For a real education on all the Duramax engine models, you might want to pay a visit to the Diesel Place: Chevrolet and GMC Diesel Truck Forums. To answer your question on the engine codes, The LMM engine was used from 2007.5 to 2010 and does not use urea. The LML, which uses urea, is the current engine model and has been in use since 2011. From irv2.com
WHAT BREAKS WHEN: 2011-2016 CHEVY DURAMAX LML - DIESEL ...
This eliminated the problem LMM’s had where diesel fuel would wind up in the engine oil, which could lead to major problems. So, by relying on an external fuel source for a DPF re-gen, the LML kept its oil free of any fuel dilution. Speaking of fuel, the LML was the first Duramax to be able to run on a B20 blend of biodiesel. With its advertised output of 397hp … From dieselpowerproducts.com
DURAMAX BEAST MODE TAKING AN LMM TO THE NEXT LEVEL ...
When Willie Lewis first started tinkering with his 2008 Duramax LMM it was just another diesel truck pounding the dirt roads of Texas. When you work on diesel machinery in the oil fields, it’s pretty much a prerequisite that you drive a diesel truck. He had already put together a 2005 Dodge Ram with the very popular 5.9L Cummins, which cranked out a pavement-shredding … From dieseltechmag.com
LMM DURAMAX SPECIFICATIONS & INFORMATION - DIESEL RESOURCE
The DPF system and the regeneration process it undergoes is one of the LMM Duramax truck’s biggest problems. Despite the DPF system, the LMM Duramax is still a reliable and capable diesel. You can find everything you need to know about this truck in our LMM Duramax specifications chart below. 2010 Chevrolet Silverado 3500 HD LMM Duramax … From dieselresource.com
WHAT ARE THE MOST COMMON LMM DURAMAX ENGINE PROBLEMS ...
Following the LBZ being phased out in mid-2007, the LMM Duramax took its place as Chevy & GMC’s diesel truck engine. Following the same 6.6L powerplant, the LMM was introduced due to continuously increasing diesel emissions regulations and lasted until 2010 when it … From thehouseofsolidgold.com
LMM Duramax - Flo~Pro 4" DownPipe Back w/Muffler, EFILive w/DSP5, Edge Insight CS w/Pyro, ... and this is with only 35,000 miles on the truck. Just my experience with the LMM. Never had near this many problems with my LBZ or LB7. I hope this helps. 2008 2500HD DURAMAX LMM 4X4. Save Share. Reply. N. NoStyle · Registered. Joined Dec 21, 2008 · 83 … From dieselplace.com
BREAKING POINT: HOW MUCH CAN YOUR DURAMAX ... - DIESEL WORLD
Without a doubt, the most popular aftermarket connecting rod for the Duramax is the forged-steel H-beam from Carrillo. At 1,090 grams apiece, they’re lighter than any factory Duramax rod, and are said to be the strongest, hence the frequency with which they’re used in engine builds and their high availability. From dieselworldmag.com
Going from the LB7 to the LMM was a definite change. The added stock horse power and 6th gear are nice. The fuel mileage is far from adequate. My LB7 lifted with 35's got better mileage than this stock truck. The darn ECM remembering your tune info is a pain too. Got to be really careful about mods now because the dealerships are telling GM on you and … From thetruckstop.us
WHAT ARE SOME PROBLEMS WITH THE LMM - 2000-2014 DURAMAX ...
I have found a decent crew cab lmm 2007.5 with 214,000 miles for 16000 and I am wondering what are some problems I should look out for while test driving it and looking at it Jump to content 2000-2014 Duramax, Diesel, & Drivetrain From gm-trucks.com
GM was producing trucks with 6.6L LMM Duramax engines for only a few years, so if your truck has one of these awesome engines, it is important to pay close attention to the tuners you are researching to make sure they will be compatible with your specific engine type. You will definitely be good to go with any tuner from this list. GM was producing 6.6L LMM Duramax … From bestofdiesel.com
WHAT ARE THE MOST COMMON PROBLEMS WITH DURAMAX LML ENGINES ...
Similar to the problem with the LBZ transmission line, the transmission cooling line is also prone to leaks on the LMM Duramax with the Allison 1000 transmission. LMM low fuel rail pressure. Very common. Although not targeted, the low fuel rail pressure cord and reduced engine output are notable references. Piston & crankshaft failure. Although the Duramax block … From faqautotips.com
The Duramax LB7 is a 6.6L V-8 with four valves per cylinder, a cast-iron engine block with aluminum heads, and high-pressure common-rail injection. It produced 300 hp at 3,100 rpm and 520 lb-ft at ... From msn.com
DURAMAX LMM | KIJIJI IN ONTARIO. - BUY, SELL & SAVE WITH ...
I have a 2007 Chevy Silverado 2500 duramax lmm diesel. Truck is in great shape just had body redone on it. New box sides innerfenders fresh paint on the body looks brand new! Other work done - new fuel tank -new fuel lines - sending unit - brakes front and rear - ball joints - tie rods - pitman arm - axles Rotors And likely a few more things that I am forgetting. Lots of work done … From kijiji.ca
COMMON DURAMAX DIESEL PROBLEMS, TROUBLESHOOTING, AND SOLUTIONS
Common Duramax Diesel Problems, Troubleshooting, and Solutions August 14, 2020, 11:51 am Next Getting the Most Fuel Mileage from Your Diesel From diesel3200.rssing.com
COMMON DURAMAX DIESEL PROBLEMS, TROUBLESHOOTING, AND ...
Mechanically, the LMM Duramax is almost identical to the LBZ, and if you do a quick search of the web for LMM Duramax problems, you’ll find much like the earlier LBZ it had very few problems related to the engine itself. One problem can rear its head when you are pushing the power of the LMM to a level GM never imagined, and that’s with the pistons. … From dieselpowerproducts.com
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. The factory firing is 1-2-7-8-4-5-6-3, but this new camshaft design changes that to 1-5-6-3-4-2-7-8. Changing an engine’s firing order isn’t a new science, as ... From dieselworldmag.com
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