Troubleshooting Trailer Wiring with Intermittent Connection of Chevy Colorado
Published 06/13/2024
Question:
I have a 2020 Chev Colorado with a factory installed towing package which included a trailer brake controller. I tow an Airstream 16foot Basecamp with it. Intermittently, after a few hours, I get a warning signal on my Colorado to check trailer wiring connection. The connection is tight, prongs are clean. Dielectric grease: would you recommend to put that on the contact points inside the plug? Or is that grease used to seal the plug connection so corrosion wont spread between the prongs in the plug?
asked by: Paul
Expert Reply:
Hey Paul, it sounds like it's not the usual spots which are the pins in the trailer wiring connectors so it's got to be on the wiring that is on the trailer or the truck. I would assume the trailer side since that's more exposed and typically more prone to issues. So you'd need to trace it back from the connectors to see if you can find a loose connection.
Paul
6/13/2024
Are you saying that one of the 2 vehicles is wired differently at the connector? Even though the failure signal does not happen until several hours down the road? You never answered the question about dielectric grease: whether it is ok to apply where the prongs make contact inside the trailer to truck connector? Thanks