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  1. 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...
    • MasterN8er
    • Thread
    • 2009 coolant deleted duramax lmm
    • Replies: 11
    • Forum: LMM
  2. MasterN8er

    2009 Chevrolet 2500 hd

    MasterN8er submitted a new Showcase Item: 2009 Chevrolet 2500 hd Read more about this showcase item here...
  3. MasterN8er

    LMM: Mystery Coolant leak

    I have a 2009 LMM. The EGR Cooler has been removed ("for offroad purposes") and im using Sinister Diesel's delete kit in its place. Basically its a silicone hose connected to the coolant lines in the firewall. The hose clamps that come with it seemed to come off every couple of months and empty...
  4. MasterN8er

    LMM: Oil Pressure help

    I have a 2009 LMM with 127k miles, my oil pressure used to run at 60 when I was driving. I had an issue with my EGR cooler bypass hose and one day it drained my coolant dry on my way home from work. As I was getting ready to pull into the driveway, the oil pressure dropped to 0 and started white...
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