I've looked at it from inside the engine; the connection between the plug and headlight housing seems to be fried. There is noticeable melted plastic (or metal) on the plug's connection.
I'm not sure what to replace, the headlight mechanism itself, or the wiring that leads to it. I've looked online for where to buy a replacement headlight, around $120. But what about the wiring/plug, I'm not sure what to look for, or if this can even be bought online or replaced easily.
I can provide pics if it will help.
CHUCK 6/23/2011JUST REPLACE THE BULB THAT YOU ARE SMACKING. IT IS IN BEHIND THE H/LAMP UNDER THE HOOD. ANY AUTO PART STORE HAS THE ITEM ABOUT $5.
Elko 9/15/2012I have the exact problem. The dealership said it was the ground in the electrical plug that melted on the the plugs connector. When I smacked the plug the light would come on and then surge again and go out. The wiring needs to be replaced, not the bulb.