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coolant loss

  1. 11-16 LML Performance Parts Discussion
    Needing some insight on 2013 lml bone stock not deleted. Here's what i have going on: When idling for a while (hooking up camper) or towing camper at 9,000lbs for roughly hour and a half in tow mode exhaust brake "coolant level low add coolant" comes on. Level seems right at about sensor level...
  2. 07.5-10 LMM Duramax Powertrain
    I have a 2009 3500 LMM Over the years I have had coolant loss's and they were not always easy to find but we always found them water pump, hoses etc. But I cannot find the problem this time. While I dont know it has anything to do with it, I had a complete EGR delete done recently. Here are...