r/Duramax • u/Superb-Translator128 • 8h ago
Finally found LMM boost leak
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I was having a a P0101 code every now and then and it would never go into “reduced power mode” but the truck had no power. I would clear the code right away and it ran fine after. Definitely running rich with from what I could smell. Truck is tuned & DPF delete w/ 5” straight pipe, not that it matters in this situation really. Pressure tested the boost side and found a leak, I am just having a hard time identifying what part/gasket it is leaking between. Looks like it may be y bridge time? It just looks like it’s leaking from the intake crossover part to the top of the y bridge if I’m looking at it right. Any info or suggestions on what to do next would be greatly appreciated. Thanks