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79 Mack Superliner Cummins NTC400
Posted to HD/Fleet Forum on 5/6/2008 11 Replies

I am trying to diag this low power complaint. I am only getting 10psi max boost under load. I have pressurized the AFC to 25psi and it holds. I measure max 60 psi fuel rail pressure at the shutdown solenoid. The turbo has no damage, spins freely and has minima... Login to read more.

11 Replies Received (View Replies)