Think you need a new turbo? It might just be this. A lot of 6.7 Power Stroke owners hear a squeal under boost and assume it’s the turbo. But in many cases, it’s actually an exhaust manifold leak—blowing through a multi-layer gasket and making a harmonic sound like a harmonica. This one went too long without a fix, and now the exhaust gases have pitted the head, turning a simple gasket swap into a major repair. If you hear a strange sound, get it checked before it gets expensive. #PowerStroke #Di