How do you remove the stock headlights from a 2000 Lincoln LS?
LS headlights are easy to remove. I have had mine off a number of times to dry them with a blow dryer after condensation formed. Remove the radiator shroud (pop-clips) Remove the screws that hold the headlight assembly to the radiator support (two?) Tilt the assembly forward enough to remove the low and high beam bulbs (twist locks) Lift the headlight assembly away from the car
You can try removing the headlight bulbs and use a blow dryer to blow in the hole where the bulb was to remove the moisture. More than likely it will just come back as you either have a leak or the seals for the bulbs is not sealing properly. The car is 15 years old so it may be time to buy some new headlight assemblies especially if they are cloudy.