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Re: Boost presure on 5.9 cummins
Posted to HD/Fleet Forum on 11/30/2003 1 Reply

As others have said, boost appears to be normal. I would make sure the electric lift pump is making sufficient volume (and pressure) to feed the main pump. We have seen dozens of low power complaints caused by lift pump insufficiencies, many of which lead to f... Login to read more.

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