Re: Cleaning trailer plug connectors?
One person suggested electrical contact cleaner (from Radio Shack or another electronics store). That was the best answer. Brake fluid, WD40, etc. will not clean the contacts although they may protect them from further corrosion.<br /><br />Spray the electrical contact cleaner onto the connections, brush wirh an old toothbrush (some contact cleaners come with a built in brush), and spray again to remove residue. Repeat if necessary. After cleaning, protect the connections with dielectric grease (available at auto parts stores). Dielectric grease will tend to pick up dirt so cover the plugs when not in use.