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Re: 03 Chevy Duramax 6.6L diesel - poor performance
Posted to Technical Discussion Forum on 3/27/2004

Hi Tom. As you have a Tech 2, try ramping up the fuel pressure and see what the maximum pressure is. It's been my experience that leaking injectors compromize the high pressure output. The last one I worked on with leaking injectors wouldn't even reach 17,000 ... Login to read more.