lmm

  1. 0

    09 LMM white smoke

    I have a 09 Chevy duramax lmm and smokes sometimes on acceleration. Smoke usually white and sometimes black. Truck is not tuned or deleted, completely stock. It has also seemed to be asking for regen more often. IPC states to regen and see owners manual. Performed regen with scan tool and...
  2. MasterN8er

    Fuel issues, crank no start

    I got some bad fuel from a Mom and Pop gas station. I really have no clue what they had in their fuel but it sure messed my stuff up. Stock 2009 LMM with only a tow tune and EGR/cooler delete 156k I had the truck running and after putting a couple gallons in I noticed it started to white...
  3. T

    Gauge DIC from 2012 Dmax with 08 ECM compatibility?

    Hey Guys, to preface I'm swapping an avalanche body-on-frame not transplanting. so far everything has lined up, and I was able to sort out my engine CANBUS problems with great help from @kidturbo, and @duratothemax. I have an 06 LBZ running on an LMM computer using GMLAN to communicate with a...
  4. C

    2007 Silverado 2500 HD Crank No Start

    Good Day, Bought a slightly tuned LMM truck with 148k miles on it and have put 3k miles on it with no problems. On a hot July day, fueled up, made a 60 mile highway trip, truck was shut off for 15 min and started back up no problem, wheeled around a pasture for 20 min, shut it off again, but...
  5. A

    Problems after dead batteries and jump start

    I have a 2008 Silverado 2500HD Crew Cab (LMM) with ~145k miles. Truck is all stock with 2 batteries and 2 alternators and I’ve had zero issues prior to this. I had a parasitic drain on the batteries that would periodically draw the batteries down, but never low enough to affect starting. The...
  6. B

    2008 lmm tuning questions

    So I sold my 06 lbz got this lmm lift pump,4” deleted exhaust, dsp5, and a v2 autocal Idaho rob all this was done when I bought it thing is no position on the dsp5 feels any different?. Gas mpg sucks only 15mpg truck has a 6” rcd lift on 35s btw any idea if the tunes even are loaded?.
  7. S

    Lmm duramax. Egr removal, efi live, and wcfab y bridge kit

    I want to fully delete the egr on my lmm duramax. I've done research and would rather just remove it totally. What would be a good delete kit for me. Also would you guys recommend a y bridge? Also a little more knowledge on efi live would be great. The best setup? Best place to purchase it? Thanks.
  8. MasterN8er

    2009 Mystery Coolant leak

    I have a 2009 LMM with 135k on it. Its been deleted and tuned with H&S Mini maxx. Its been deleted since November of 2018. The EGR cooler is off. Ive been having issues with losing coolant since May. I've had it taken to a shop twice and they pressured it up and couldn't find a leak. I had...
  9. 07SilveradoHD

    Female Pins for Glow Plug Module LMM

    My truck has been having a no crank no start problems (previous post explains) We have tracked down the problem (hopefully) to the engine harness side of the glow plug module. It looks like a couple of the female pins are messed up and there is way to much of some kind of blue grease in the...
  10. AlRob

    LMM - Shift Inhibited

    I'm at my wick's end with this and come here hoping someone could shed some light on the situation for me. 2010 GMC Sierra 2500HD - 4x4 - 155kmiles - MiniMaxx Tuner on Street Tune Basically, a month ago my tranny slipped a couple of times between gears out of nowhere within a two day span. Was...
  11. Anthony@SunCoast

    LMM: new to the forum

    Hey guys my name is Anthony Klein and my truck is a 2008 chevy silverado 2500HD lmm Lt2 extended cab short bed 4x4. It has 135,000 miles on it and ive owned it since it was 101,000 it was previously owned by a lady in texas. since I bought it i've done just a few things that include cognito...
  12. B

    LBZ: Injector question

    I have a 2006 LBZ which started smoking under a load. pulled the injectors sent them off to dinomite desiel they bench tested them and found the ball seats to be bad. Now I have the issue of trying to find injectors for the truck with the shortage going on with parts from bosh. The dealer wants...
  13. M

    LMM having trouble tuning without making truck "cough" when EGR disabled.

    New to tuning, I have built a few tunes with limited success. Well, actually no success yet. I have been having trouble getting a tune where the truck doesn't cough under boost and basically fall on it's face. EGR is disabled, timing bumped a little and desired boost levels raised slightly...
  14. Forever

    LMM: SPI performance reroute

    I decided I'm going to go with the SPI reroute since I'm occasionally in -20 below weather and I don't want oil on my shop floor. I know Tony Burkhard makes a Kit that fit's perfectly, would it be easier to get his kit and be done with it? How well is the SPI kit designed? Will I have to tweak...
  15. othrgrl

    LMM: 2WD - 13.2 @ 104 first time at track

    We have a customer with a beautiful black '08 crew cab GMC with all the options, 22s, bed rug, hard tonneau, sub and amp, navigation, DVD, sunroof and all - sorry to go on and on but it's a drool worthy truck for looks and comforts. Anyway he had us do some work on his truck while he was...