Re: Re: OT.Powerstroke Ford or Cummins Dodge...For Tractor Hauling,

Posted by Dr.EVIL on March 16, 2003 at 03:43:06 from (216.165.148.157):

In Reply to: Re: OT.Powerstroke Ford or Cummins Dodge...For Tractor Hauling, posted by firemedic on March 15, 2003 at 20:07:06:

The reason the PSD cranks longer when starting is to have the HP oil pump for the injection system build pressure to fire the injectors. They's a check valve in the feed tube to the resivour the HP pump gets it's oil from. If this check valve lets the oil leak You'll have to crank longer. My '96 has always started after 3-4 revolutions. The HP pump can operate up to 2200 psi and the ECU won't try to fire the injectors till it senses at least 375 psi.

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