Exhaust Leak on a 400 Cummins
Can anyone tell me how to check for an exhaust leak on a diesel?? Have been hearing what sounds like an exhaust leak when driving with the window down on the highway. More noticeable when you have the...
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Ours is a Cat 350...had a leak fixed this summer. Elbow from exhaust brake to muffler, 1/2" hole under heat shroud, new pipe + labor $340.
