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  1. 01-04.5 LB7 Duramax Powertrain
    2003 LB7 YF5 is only building 18 psi max boost according to my Edge CTS 3. This is with a PPE boost valve installed. This seems extremely Low? When you give her the berries it takes foreverrrrrrr to get up and go. Merging onto the highway feels dangerous. I performed a boost leak test today and...
  2. 11-16 LML Duramax Powertrain
    Hey all, got a wierd one. Dead stock 2012 LML just hitting 93k on the odometer.Threw a Tstat code on me. So I changed out my thermostats last week without any issue. Swapped them out, buttoned it all back up and topped off the fluid. Codes gone and good to go. I drive it for a few days no...
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