I have a Quad Race box and occasionally, especially when the humidity is high, the truck will act up; monitor will loose the fuel pressure. I know it is a connection but when I check they look OK. Well today I pulled them apart and the orange one right behind the air horn that connects on the rail had moisture in it and all around the orange seal. I have dielectric grease on it. What are the options to keep these connections dry?

 

Find a new seal for the connector. Clean and dry the connection thoroughly and install the new seal. Apply your dielectric grease and button her up.