Notices
Like Tree14Likes

LMM Duramax

Old 11-01-2019, 05:54 PM
  #1  
Senior Member (used to be B-Faithful)Captains Club MemberPLEDGER Admiral's Club Member
THT sponsor
Thread Starter
 
Join Date: Dec 2002
Location: Annapolis, MD
Posts: 17,214
Default LMM Duramax

Thinking of buying my fathers 2010 Duramax. Was wondering the durability of the motors being the first generation of diesels with all the emissions junk. His only has ~100k on it. I currently tow 8000lbs about 100x a year with my 2011 Tundra, which has been trouble free and flawless but it has 160k on it. Being my father he is offering it to me for trade in value. However I dont want to step into a high dollar repairs in the near future.

LMM experience appreciated
iFishMD is offline  
Old 11-01-2019, 06:10 PM
  #2  
Senior Member
 
Join Date: Sep 2016
Location: Essex md to ellingwood ks
Posts: 103
Default

ive had 3 duramax trucks since 2004 all were bad ass trucks
Had a 2004
2007 and a 2015 ....... none had trouble
George Zahradka is offline  
Old 11-01-2019, 06:21 PM
  #3  
Senior MemberCaptains Club Member
 
Join Date: Dec 2007
Location:
Posts: 11,458
Default

Pretty sure the 2010 still had the CP3 so that's a BIG plus. The emissions crap was pretty troublesome on those first models after 2007 but it can be deleted fairly cheaply w/o much trouble.
Finfever21 likes this.
Back-in-Black is online now  
Old 11-01-2019, 06:49 PM
  #4  
Senior Member (used to be B-Faithful)Captains Club MemberPLEDGER Admiral's Club Member
THT sponsor
Thread Starter
 
Join Date: Dec 2002
Location: Annapolis, MD
Posts: 17,214
Default

I don’t think I will be deleting because I live on the people’s republic of Maryland. Am I looking for DPF problems
iFishMD is offline  
Old 11-01-2019, 07:11 PM
  #5  
Admirals Club Admiral's Club Member
 
Join Date: Mar 2011
Posts: 858
Default

Originally Posted by iFishMD View Post
I don’t think I will be deleting because I live on the people’s republic of Maryland. Am I looking for DPF problems
we had a lmm we left the emissions on. it required a delete or a dpf replacement at 250k miles.... it got the delete.

long story short the truck has plenty of life left just be prepared the emissions will eventually give you trouble
evanP220 is offline  
Old 11-02-2019, 12:04 PM
  #6  
Admirals Club Admiral's Club Member
 
Join Date: Jan 2013
Posts: 4,745
Default

LMM is a great motor.
avalonandl is offline  
Old 11-02-2019, 12:49 PM
  #7  
Senior MemberCaptains Club Member
 
Join Date: Jun 2005
Location: winter garden fl / Tiger Ga/ New Port Richey fl
Posts: 2,517
Default

I have an 08 unmolested I bought in may with 80k on it. I have put about 4k on it since I bought it. we did an 1800 mile trip to the Carolinas visiting family and I hand calculated the mpg when I got home. It was right at 18 for the entire trip. I had a tuned 07 and I can tell you that 07 would run circles around the 08. If I keep it Im going to have to tune it. 07 I bought new and only thing replaced on the motor was 3 glow plugs in 170k miles. The 08 has been trouble free so far.Both trucks were crew cab 4X4's
oceandansar is offline  
Old 11-03-2019, 09:18 AM
  #8  
Senior Member (used to be B-Faithful)Captains Club MemberPLEDGER Admiral's Club Member
THT sponsor
Thread Starter
 
Join Date: Dec 2002
Location: Annapolis, MD
Posts: 17,214
Default

The truck has plenty enough power for me. I fear deleting it due to Maryland's cracking down on it. Is the emissions stuff that much of a nightmare to keep?
iFishMD is offline  
Old 11-03-2019, 09:52 AM
  #9  
Admirals Club Admiral's Club Member
 
Join Date: Mar 2011
Posts: 858
Default

Originally Posted by iFishMD View Post
The truck has plenty enough power for me. I fear deleting it due to Maryland's cracking down on it. Is the emissions stuff that much of a nightmare to keep?
no, it's not. it, like everything else, has a life expectancy. and will probably last well over 200k miles. but, just be prepared it will eventually need some attention
evanP220 is offline  
Old 11-03-2019, 10:03 AM
  #10  
Senior MemberCaptains Club Member
 
Join Date: Jun 2005
Location: winter garden fl / Tiger Ga/ New Port Richey fl
Posts: 2,517
Default

I've been told to keep the original computer from what I understand is they actually have to program a computer for the truck. There is a duramax forum that has lots of info on it.
My 07 was super easy and I did it for fuel economy but once you get use to how it runs its hard to go back to stock.one example in the 07 going up an interstate on ramp acceleration was not a problem. In the 08 on our last trip every trip up an on ramp my foot was on the floor and iut just didn't have the go of the tuned 07.
I've run a few fords light to light and haven't been beat yet but the 08 won't melt the tires like the 07 would.
I don't enjoy driving the 08 at all and wind up driving the wife's jeep mostly.
oceandansar is offline  
Old 11-03-2019, 10:07 AM
  #11  
Admirals Club Admiral's Club Member
 
Join Date: Sep 2017
Posts: 2,181
Default

Originally Posted by oceandansar View Post
I've been told to keep the original computer from what I understand is they actually have to program a computer for the truck. There is a duramax forum that has lots of info on it.
My 07 was super easy and I did it for fuel economy but once you get use to how it runs its hard to go back to stock.one example in the 07 going up an interstate on ramp acceleration was not a problem. In the 08 on our last trip every trip up an on ramp my foot was on the floor and iut just didn't have the go of the tuned 07.
I've run a few fords light to light and haven't been beat yet but the 08 won't melt the tires like the 07 would.
I don't enjoy driving the 08 at all and wind up driving the wife's jeep mostly.
Was the 07 a LBZ or LMM?
Vantaredoc is offline  
Old 11-03-2019, 10:47 AM
  #12  
Senior MemberCaptains Club Member
 
Join Date: Jun 2005
Location: winter garden fl / Tiger Ga/ New Port Richey fl
Posts: 2,517
Default

LBZ 07 classic. I couldn’t find a low milage to replace my totaled with so had to go to 08
oceandansar is offline  
Old 11-03-2019, 12:23 PM
  #13  
Admirals Club Admiral's Club Member
 
Join Date: Sep 2017
Posts: 2,181
Default

Originally Posted by oceandansar View Post
LBZ 07 classic. I couldn’t find a low milage to replace my totaled with so had to go to 08
I just made a very fast trip to Anderson SC Friday to take care of a customer, personally. Of all the vehicle’s in my stable I chose my 06 lifted GMC LBZ! It’s been the most reliable and most fun vehicle (other than my built 996 turbo). I left Sanford Fl at 10:00 am on Friday morning, arrived in Anderson around 6pm, took 45 mins to seal a trailer roof and pulled into my house at 2am! That was a 1050 mile round trip and traffic and drivers along with South Carolina roads suck!! My 16 LML is tuned and deleted and is a beast but being a long bed dually, it’s not nearly as nimble as the short bed 2500...or as quick! I’m actually entertaining the idea (never thought it would happen) of selling my GMC or removing the lift and dropping it low as my back is starting to hate climbing in..lol

Last edited by Vantaredoc; 11-03-2019 at 12:31 PM.
Vantaredoc is offline  
Old 11-03-2019, 01:33 PM
  #14  
Member
 
Join Date: Aug 2018
Posts: 58
Default

Buy it. They are getting harder and harder to find with low miles and rust free. Basically an LBZ with emissions
GoodRun is offline  
Old 11-03-2019, 02:58 PM
  #15  
Senior MemberCaptains Club Member
 
Join Date: Jun 2005
Location: winter garden fl / Tiger Ga/ New Port Richey fl
Posts: 2,517
Default

I paid 25 k for the 08 in May. It had 80k on it and I will be 30k in it by the time I get it where I want it.
oceandansar is offline  
Old 11-04-2019, 07:29 AM
  #16  
Admirals Club Admiral's Club Member
 
Join Date: Jan 2013
Posts: 15
Default

Getting ready to sell my 2010 LMM w/ 100,000 miles it's been deleted and tuned for 8 years and never looked back it is an Awesome truck just want something newer.
dilligaf34 is online now  
Old 11-04-2019, 07:33 PM
  #17  
Senior Member
 
Join Date: May 2016
Location: Texas
Posts: 1,102
Default

The Duramax/Allison drivetrain is a tank, especially 2006 and newer. Like said above, the LMM is basically an LBZ with a DPF. It has the same 6 speed Allison and everything. I think literally the only power difference is like 10lb ft of torque more on the LMM.

if you leave it unmolested and just drive it, you'll never have an issue with that truck. You probably will with the DPF, but throw that shit away. Mechanically you'll be bombproof, it'll tow anything you hook behind it.

Love, love, love my LBZ. Duramaxs are amazing trucks
oceandansar likes this.
Manoverboard123 is offline  
Old 11-05-2019, 07:04 PM
  #18  
Senior Member (used to be B-Faithful)Captains Club MemberPLEDGER Admiral's Club Member
THT sponsor
Thread Starter
 
Join Date: Dec 2002
Location: Annapolis, MD
Posts: 17,214
Default

My dad dropped the truck off to my house tonight to let me drive it for a week to see if I like it better than my Tundra. I have 3 charters and a trip to get some updated electronics installed 45 min from my house so that means I will tow with it 4x and have it for daily running 3 days before I pick him up from the airport and he takes it home. If I dig it, I will probably take it off of his hands
iFishMD is offline  
Old 11-05-2019, 07:25 PM
  #19  
Admirals Club Admiral's Club Member
 
Join Date: Apr 2014
Location: Rockledge, FLA.
Posts: 1,356
Default

Greg,Buy it.
mdman352 is offline  
Old 11-05-2019, 07:41 PM
  #20  
Senior Member
 
Join Date: May 2016
Location: Texas
Posts: 1,102
Default

Originally Posted by iFishMD View Post
My dad dropped the truck off to my house tonight to let me drive it for a week to see if I like it better than my Tundra. I have 3 charters and a trip to get some updated electronics installed 45 min from my house so that means I will tow with it 4x and have it for daily running 3 days before I pick him up from the airport and he takes it home. If I dig it, I will probably take it off of his hands
Just a fair warning though... Once you like it (you will) you probably won't ever buy another gas truck.. I can tell you that from experience. Diesel power is addicting whether you hauling 3,000lbs or 20,000lbs.
mdman352 likes this.
Manoverboard123 is offline  

Thread Tools
Search this Thread