there isnt a direct way to opem the radiator, you only have your fill bottle on the drivers side.
Open the hood, stand facing the engine. On the drivers' side follow the top radiator hose to where you see a junction with 2 bolts, there is where the thermostat is.
Facing the front of the car with the hood open, on the drivers side follow the radiator hose down till you come to a junction where you see two bolts, that is where the thermostat is.
To drain a Lincoln Navigator's radiator, first ensure the engine is cool and then locate the radiator drain plug at the bottom of the radiator. Place a drain pan beneath the radiator, open the drain plug, and allow the coolant to flow out completely. Once drained, close the drain plug securely and refill the radiator with a proper coolant mixture. Always dispose of the old coolant responsibly.
Open the hood, on top of the engine in the middle front.
Not familiar with your particular vehicle but most cars and trucks have a petcock ("T" shaped fitting) on the bottom of the radiator usually on the drivers side. You will needs a pair of pliers and CAREFULLY turn the petcock counter clockwise to open.
in the panel located on side of dashboard open drivers door to see it
well you can either open the bleeder screw on the bottom of the radiator if it has one, or you can loosen the clamp on the bottom hose of the radiator and watch out for the big gush of antifreeze coming at you, take the radiator cap of before hand as a vent. good luck.
The radiator cap on a 2003 Lincoln LS V8 is located on the radiator itself, typically near the front of the engine compartment. To access it, you may need to open the hood and look for a round cap labeled with caution or warning symbols. Ensure the engine is cool before attempting to remove the cap to avoid burns from hot coolant.
Driver's side, door open, side of the dash, small panel.
Inside the trunk drivers side open the door on the side and use the on off button.
you have a faulty door jam switch.
ok if it is anything like the 89 Lincoln mark 7 all your have to do is open the trunk. Take the spare tire and coverings off that side. The look for a white button behind a stuckture bracing. it is attached to it.