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  1. Late 2004 6.0 no ICP, no base oil pressure reading for 1st 15 seconds cranking

    6.0L Power Stroke Engine and Drivetrain
    At initial cranking I have no ICP or indication of oil pressure on the in-dash oil pressure gauge. After cranking for about 15 seconds oil pressure gauge registers pressure and ICP climbs from 0 to 580, and engine starts. In-dash oil pressure gauge drops to 0 at idle. Slightly increasing RPM...