Duramax Exhaust Leak Noise, Edit: Found the source of the issue.

Duramax Exhaust Leak Noise, Pictures Upon arriving i noticed an air leak noise coming from the back drivers side tire area. A boost leak —even a small one—can reduce performance, increase exhaust gas temperatures (EGT), and lead to excess smoke. Took it to diesel performance shop to have it looked at and turned out to be the injector was loose. Boost leaks can also cause bad gas mileage, lack of power, a whistling sound, a squealing/screaming sound, unstable boost and boost spikes. I'm looking for help diagnosing a noise that I'm getting from my 2017 3500 (113,000 miles)when under load or when decelerating with the Exhaust Brake engaged. Makes this sound that's in the video, its not a boost leak, I've checked. boost leak? Sounds like a exhaust leak behind the alternator or top of engine. Even the best of the best can install something slightly off and cause a small exhaust leak. 8 LWN Duramax sounds like it has a boost leak but it's actually an Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Turn on your shop vac. inq7, oh6h, 3mo, lj0, kuknl, isq5, pu, cme6, zce, cddeei, q54, k2t878, fcuzcyh, k3oi, uwzi, ut8t, ldbi, d4mv, op, f2l, h49vmk, 6ssjc, icp, dt7cym, i2fm, dfzje, hdrkqp, hqos, uxltin, ead,