The Dorman socket features a nice silicone ring seal
2005 Chevrolet Trailblazer
Front Headlight Repair
Recently our SUV vehicle experienced a non lighting right headlight. At first
I imagined that the bulb had simply burned out and promptly went to purchase a new
When I went to take out the old bulb I discovered that the socket plug had badly
overheated and melted. The lightbulb was actually working fine and only needed to
have the melted plastic removed from inside the plug fitting. I believe that because
the plug was not equipped with a seal, moisture had corroded the plug terminals.
Corrosion on electrical connections leads to arcing and this arcing is what I believe
created the hot temperatures that eventually melted the socket.
At the local autoparts store there was the appropriate replacement sockets that
are made a lot better since they have a silicone seal to keep out moisture. I also
used di-electric grease to further prolong the effects of moisture and oxidation.
The new plug has been in the vehicle for a few weeks and the headlight functions