According to the 2003 Lincoln LS Owner Guide :
The engine cooling system ( 3.0 liter V6 and 3.9 V8 )
came from the factory with a 50 / 50 mix of distilled water and Motorcraft
Premium Gold Engine Coolant
( YELLOW colored antifreeze meeting Ford specification WSS-M97B51-A1 )
its regular green ford didnt switch to GO5 until 2002-2003
where is the computer module located on a 2003 Lincoln LS
At the radiator or at the coolant resivoir.
In a 2003 Lincoln LS the battery is in the trunk, next to the spare tire.
whats the firing order for a 2003 Lincoln ls?
( 6 spark plugs ) for your V6 engine in a 2003 Lincoln LS
According to the 2000 Lincoln LS Owner Guide : It came from the factory with a 50 / 50 mix of distilled water and GREEN color antifreeze ( meeting Ford specification ESE-M97B44-A )
According to the 2001 Lincoln LS Owner Guide : They came from the factory with a 50 / 50 mix of distilled water and GREEN color antifreeze ( meeting Ford specification ESE-M97B44-A )
early s-type 1999-2003 v8
If you mean "why", then the answer is that there is a leak in the heater core.
According to the 2003 Lincoln LS Owner Guide : The engine cooling system capacity for the 3.0 litre V6 is ( 11.2 U.S. quarts ) ( so that's 2.8 U.S. gallons ) * from the factory it is a 50 / 50 mix of distilled water and antifreeze ( so that's 1.4 U.S. gallons of distilled water and 1.4 U.S. gallons of antifreeze )
I had a 2000 Lincoln LS and the Antifreeze Reservoir had a rash of heat induced cracks on the side facing the Firewall. The antifreeze would ooze and evaporate without leaving a puddle but a whiff of the smell could be noticed on some occasions. My 2005 LS has some of the same cracks but has not started to leak or ooze antifreeze. Also on my 2005 LS there was an upper hose leak but only with 16 psi or more of pressure.