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What I need to do next is to release the red button here so that I can begin the fueling process by releasing the solenoid.
The flashing light lets me know that the solenoid has been released so that fuel can begin transfer to the vehicle.
See, that coil of wire is a special shape called a solenoid.
And when a solenoid has a current running through it, it produces a magnetic field, basically all of which goes through the inside of the coils.
Gaskets, shower screens, solenoid valves, and grinder burrs all wear down.