Low icp

johndeerezach · Nov 30, 2015

Truck started 2 weeks ago ran for about 30-45 min while I pushed snow. Came back truck was dead pulled in heated shed doing some checks thought cps was bad. Replaced with gray motorcraft. Got mechanic to hook scanner to it said I was only getting 150 psi while cranking. Said hpop is bad is there anything else I can do to check before I replace pump?

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ju015dd · Dec 1, 2015

Unplug ICP sensor first to see if it will start unplugged. If so bad sensor. Check and make sure IPR sensor is plugged in. Check the tin nut is tight on IPR. I would remove the hoop res screw on housing to make sure there is oil in there. If not it may be bypassing oil and IPR could be stuck open. How many miles on your injector o rings?

Arisley · Dec 1, 2015

Check oil.

mandkole · Dec 1, 2015

The pump is the last thing Id consider at this point. Even a crappy pump could supply enough volume to deliver enough for a start and good idle. You need well sealed oil rails, good IPR orings, a responsive IPR and good feedback from the ICP sensor.

http://powerstrokearmy.com/forums/attachment.php?attachmentid=329&d=1307148441

johndeerezach · Dec 2, 2015

Icp is 6 months old, ipr is new, pump is new. fried starter last night purging air after pump change. Was getting 150 psi on scanner before pump change now reading highest at 70 psi. I have to go get starter from arnold motor in the morning.

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johndeerezach · Dec 2, 2015

Icp is 6 months old, ipr is new, pump is new. fried starter last night purging air after pump change. Was getting 150 psi on scanner before pump change now reading highest at 70 psi I have to go get starter from arnold motor in the morning.

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