My TJ has just started making a horrible clacking noise, which seems to be coming from the right hand headlight. Happens with both main and dip, but not with just the sidelight on.
Frequency is constant and not varied by engine speed (happens with engine turned off too), just over 1 per second and is loud enough to be heard when driving. No flickering from the lights, but one Hell of a vibration can be felt if you put your hand on the light. Is there a relay buried somewhere in the light unit, or could a simple change of bulb sort this?