Not having seen a 2003 or 2005, but if Taurus/Sable "tradition" holds true, it is very likely to have to remove the upper intake manifold to gain access to the bank one plugs/wires.
See "Related Questions" below for more discussions on this approach
NOTE: please come back to this question and share your first-hand experience and what works well for changing the rear sparkplugs.
how to change spark plugs on a 97 mercury mountaineer
The only way to change the plugs is to remove the top cover first. Then remove the cover for each plug.
The spark plugs on a 1999 Mercury Cougar are located under the cover of the engine. The spark plugs should be changed approximately every 60,000 miles.
BuRN
jack up car and change plugs from behind each front tire.
The spark plugs on a 1999 Mercury Cougar are located under the cover of the engine. The spark plugs should be changed approximately every 60,000 miles or so.
To change the spark plugs, the ones on the left side (driver's side) of the engine are accessible from the top of the engine under the hood. The plugs on the right side (passenger side) are accessible by pulling the right front wheel and removing the rubber dust cover (pops off) that attaches to the fenderwell. This is assuming that you have a 5.0L V8 engine (302ci). Have Fun!!!
To change the spark plugs in a 1997 astro van do I have to change the spark plugs from the bottom of the engine/
A V6 engine in a Mercury Sable takes ( 6 spark plugs )
Change the spark plugs, air filter, fuel filter, that's it. Of course, engine oil and filter.
Screwed into the engine. Follow the spark plug wires.
you change them like every thing else