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International Automotive Technicians Network
Re: 96 IH 4900 DT466HT ERRATIC MISFIRE THAT SWAPNOSTICS CURES
Posted to HD/Fleet Forum on 5/10/2019

This rings a very faint bell. I had a very similar problem problem I posted on here some years ago. Short version of the solution. Inspect the turbo. Make sure the waste gate valves are fully closed. This is hard to confirm on the engine. In our case there was... Login to read more.