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Power Strokes
6.0 Aftermarket
NEED TO KNOW..NO 6.0 TECH THREADS!?!?!?
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[QUOTE="907DAVE, post: 45548, member: 672"] 1. Remove the ICP sensor from the Right Hand (RH) valve cover and connect shop air pressure to the ICP system there. With air applied and the key off, air should be heard pushing in to the crankcase (this may take several minutes for the oil to empty from the ICP system). Then turn the key on and either use a scanner to command the Injection Pressure Regulator (IPR) closed (if the function is available) or backprobe the Yellow/Red (Y/R) wire at the IPR and ground it. There should be very little to no air heard in the crankcase with the IPR grounded. 2. If there is no difference in the air heard when turning the key on and grounding the IPR, suspect a leaking IPR or leak in the system. Remove the valve covers to check for any leaks at the injectors. If none are found, remove the rear engine cover to access the ICP pump and check for any leaking lines or connections and repair as needed. 3. If there are no leaks but there is air heard when pressurizing the system, suspect a faulty IPR. Remove the IPR and inspect the screen on the inlet for any damage. If any damage is found, or large metal pieces are found, suspect a damaged ICP pump. 4. If there is no air heard when pressure testing the system, suspect a faulty ICP pump. Do not leave IPR energized for more than two minutes to prevent damage. [/QUOTE]
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