BradHend Posted July 10, 2022 Share Posted July 10, 2022 After a day at the beach, this sound has started on our way back. Quite noticeable at higher RPM, not so much at idle. I noticed some black smoke when accelerating from a stop since and have quickly looked around for obvious boost leaks or other items. This surging noise is quite loud when rolling down the highway. Any suggestions? Cummins 5.9 ISB 300…with some kind of exhaust brake😉. As always, appreciate any and all input. IMG_3737.MOV Link to comment Share on other sites More sharing options...
Dr4Film Posted July 10, 2022 Share Posted July 10, 2022 Hard to tell when playing a very short video. Don't have anything to compare it to. Link to comment Share on other sites More sharing options...
Craggar Posted July 10, 2022 Share Posted July 10, 2022 I tried to listen to it but it said a virus was detected when I tried to download it. Have you noticed any loss in boost? Link to comment Share on other sites More sharing options...
BradHend Posted July 10, 2022 Author Share Posted July 10, 2022 Boost pressure seems okay. Was out in it today as I had put a container of Diesel Kleen in to get it sloshed around and working. Boost pressures seemed to be in the appropriate ranges for what I was pushing for. I think I will make a pressure cap for the inlet side of the turbo and see for sure if it’s a boost leak or not. Link to comment Share on other sites More sharing options...
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