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James, Ford Technician
Category: Ford
Satisfied Customers: 3624
Experience:  Ford Senior Master Tech, Ford gas and diesel expert, ASE Certified
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I have a 2006 f350 6.0l quit running replaced IPR valve ok

Customer Question

I have a 2006 f350 6.0l quit running replaced IPR valve ok stoped running again pulled IPR valve again it had a blue looking rubber in the screen no work done on the truck prior
Submitted: 6 months ago.
Category: Ford
Expert:  James replied 6 months ago.

Hello, Once the vehicle cooled back down it still won't start and run? Do you have a scan tool that can monitor live data?

Customer: replied 6 months ago.
scan tool shows less than 500psi to start pulled IPR valve has blue oring in screen
Customer: replied 6 months ago.
can you tell me where the rubber oring is coming from
Expert:  James replied 6 months ago.

The blue o ring isn't something that should be in the high pressure oil system. The high pressure oil o rigs are black and there is one yellow one. If the IPR has stuff on the screen I would suspect the Snap to connect fitting is the cause. If you have OTC 303-765 you can air test the system and determine where the leak is coming from.