New recall on 2004 Durango

From : frank k

Q: tbone wrote probably a bad ground. a poor ground connection will draw excessive current through the circuit and through the filament which isnt designed for that much current and burns out prematurely. unplug the connector from the taillight bucket and try and clean the contacts as much as you can. ok ill bite. how exactly does a bad ground increase the current draw because the battery would attempt to deliver its entire power supply from one pole to another. hence a short circuit. jerry yabbut a bad ground in the lighting circuit will not increase the current draw thru the filament of the bulb. presumably the circuit has a zero resistance thru the ground thus zero resistance cannot be improved upon. what is likely happening is that there is a bad ground that intermittently and rapidly causes a power loss thru the circuit and cause the bulb to flicker. the resulting rapid thermal cycling of the filament will cause it to burn out more quickly. without knowing more about the problem that would be my best guess. mike .