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  1. 911 Problems Forum
    Alright, I'm sure this has been a thing alot with the Lb7 but mine had been light hazing the past few months, recently been losing coolant somewhere, no visible leak. Today I got to work and low coolant warning came up, shut off truck and topped up tank. Truck sat all day then when I went to go...
    #injectors coolant leak head gaskets injector cups lb7
  2. 01-04.5 LB7 Duramax Powertrain
    Doing head gaskets on my LB7. Sorry I don’t have my truck info filled out…new here and am kinda in a pinch. I’m simply curious if it’s typical to get the heads pressure checked with the injector cups in or out? What have y’all done? Machine shop told me I needed to have the cups installed in...
    injector cups lb7 resurfacing
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