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  1. Buying or Selling a Truck Questions
    I love been looking to move up from my 1500 to a 2500 and found one that I could trade straight for. The only hang up for me is it has 400k miles on it. It’s a one owner, service records since 10 miles and it’s very very clean but I was just looking to see if there’s any big issues with these...
  2. Duramax Fourth Generation: 2007.5-2010 (LMM)
    I have a 08 lmm duramax 4wd been in the shop for months now fixing all the bs I got stuck with when buying the truck but my mechanic is telling me truck keeps throwing a ground g code he replaces bunch of parts he got it started and drove it for about 20 miles before that code comes up again he...
  3. Buying or Selling a Truck Questions
    Hello all, I’m looking into buying a 2009 lmm with 250,000 miles on it, car fax seems to be good on it but I’m hesitant to purchase as I’d be trading in my beloved lb7. I’ve weighed the pros and cons of each pickup/engine and I’m leaning towards the lmm. It drove great and ran great. I’ve been...
  4. Electrical
    So here’s a good one…..we took a lightening strike near the house the other day that knocked out power, took out the power company transformer fuse which wasn’t that big a deal. But….when I went to drive the truck later that day all gauges were inoperative, the DIC indicated malfunction on all...
  5. Allison OEM
    Our '08 (LMM of course) threw this code during some heavy towing. Problem is, it's been over a month and I can't remember which text descriptor my Autel was giving me on the side of the road. I'm just a little confused because from searching the web it seems on some years it would tell you it...
  6. Duramax Fourth Generation: 2007.5-2010 (LMM)
    So I keep getting a change fuel filter on the DIC. I’m unsure of what’s going on it’s a 2008 deleted with a fassfuel, running on a single tune sometimes it will go into reduced engine power due to this filter had 5000k miles replaced earlier today with a new one but same issue anything??? I’m...
  7. Duramax Fourth Generation: 2007.5-2010 (LMM)
    2007 (new body style) Silverado 2500 6.6L LMM 329,000 miles Original motor, original trans, EGR deleted 3 years ago, no programmer, factory tune. A couple of weeks ago the batteries went out overnight. Truck would not start and batteries would not charge. I replaced the batteries and I have had...
  8. Duramax Fourth Generation: 2007.5-2010 (LMM)
    I got a 07.5 Duramax with lmm motor and when I crank my truck it starts up but cuts off no check engine lights nothing so I go and prime it back up and cranks and runs fine no misfires not nothing so I’m lost maybe you guys can help me
    lmm
  9. Duramax Fourth Generation: 2007.5-2010 (LMM)
    Hey guys I got a 2008 lmm with 200k miles efi live threw korey Willis s&b cold air and just 4 in down pipe back to a stack i when out yesterday around 12 fired it up (wasn’t the first time in ran yesterday) it was 33` outside put it in reverse and it started to sputter and blow white /black...
  10. Duramax Fourth Generation: 2007.5-2010 (LMM)
    so I'm having a p0087 problem ,if I accelerate past 3000rpm or near it with in 2-400 rpm on the high side truck goes in to limp mode. I can clear it on the edge cts and i get power back although I cant always get it to put up a cel light I am the 2nd owner as far as I know the previous owner...
  11. Electrical
    Can’t seem to find a similar issue to mine anywhere, a few of my gauges get stuck in particular the volts is always the first one, but could be gas gauge or any other gauge except tack and speedo. No codes, have tried to pull them several times. have checked ground strap under hood looked...
  12. Duramax Fourth Generation: 2007.5-2010 (LMM)
    LMM FAQ's 2007.5-2010 LMM FAQs Here is a compiled listing of the most popular LMM topics discussed here at DieselPlace.com. This is to help you speedily find your answers, without having to wait for a reply to your question. We love to answer questions, and enjoy gathering around the computer...
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