Pushed the switch and held down for about 2 minutes but the reservoir did not get any lower. I only checked due to the fact that when I inspected the fluid level last week it is still topped off from the beginning of the season. What do I need to check to get the fluid flowing into the intake lines?

Matt

 

Sorry, engine is a 5.7 L, 320HP, XDP drive.

 

check for 12v at the wires
might be the solenoid