the same place they are in almost every vehicle, at the top of the cylinders. look for wires coming out of the top or possibly the sides of the cylinders, if you have a 6 cylinder engine there will be 6 wires. 8 cylinder engine 8 wires. you should be able to pull the wires right off and the spark plugs will be exposed. you will need an extremely deep drive socket to replace them. make sure you put the wires back to the exact same cylinder that they were on before and try not to let debris fall into the cylinder when the spark plug is out of the hole.
although this may be too complicated for you, you might have to just take it into a shop for this.
( 6 spark plugs ) for your V6 engine in a 2003 Lincoln LS
oil leaking on your spark plugs in your Lincoln LS because you have a leaking valve cover gasket.
what engine?
Good possibility one of your spark plugs or coils are bad.
The LS has 1 spark plug per cylinder. The V6 model will have 6 spark plugs and the V8 model will have 8.
According to the 2005 Lincoln LS Owner Guide : The spark plugs for the 3.0 litre V6 engine are gapped at : ( .051 to .057 inch ) * confirm with the Vehicle Emissions Control Information ( VECI ) decal located in the front of the engine compartment
Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of your engine compartment ( it will show the type of spark plugs to use and the spark plug gap )
Agsp-32f
it took me about 2 hours the back one on the drivers sisde is hard to get too
It has the Coil On Plug ( C.O.P. ) ignition system ( V6 + V8 ) that has an individual coil for each SPARK PLUG ( 6 or 8 spark plugs )
because your valve cover seals are bad... fix it before you will get issues with coil packs... and change the spark plugs while at it...
Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of the engine compartment ( it will show the type of spark plugs to use and the spark plug gap )