I am Haveing problems with my tail lights. Sometime my driver one will be on, and other times it will not turn on at night unless i hit the breaks. What could this be?

 

The light is a dual filament bulb. The dimmer bulb filament could have burnt out but the brake light still intact. Try replacing the bulbs. I believe they are 1156.

 

1156 is the single-filament. You need 1157.
Markargente is right, with two filaments, the 8 watt (on with tail lights) is probably blown. The 27 watt filament (comes on with brakes) is still working. Your only other guess would be a short in the wire, but if one works always and the other does not, replace the bulb.

 

short in the wire
short in the harness
short in the plug
sort in the connector
moisturein the plug
throw a multi-meter on it and se what she tells ya.

 

thank you all so much