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  1. General Discussion
    Can somebody explain to me how to test my glow plug controller on a 2007 LBZ. I have a voltage tester. My truck ran a lost communication to glow plug controller code and I just want to make sure my glow plugs aren’t staying on all the time. Thanks.
    glow plug glow plug controller test
  2. 01-04.5 LB7 Duramax Powertrain
    Im about to put in a set of injectors and an air dog 165 i think..havent made up my mind on what pump yet..anyway this is the first time the truck has been torn into since it was new..I was thinking that with the high miles I was going to do a compresson test and check the valves to make sure...
    efi live injectors rebuild test valve
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