The orange and metallic looking things with the wires connected to them are the fuel injectors. You don't need to fool with those at all. The parts that you are concerned with are the (black) larger coil packs. Each one has a spark plug boot made onto the bottom of it which protrudes down into an opening in the head. At the bottom of each of these openings is where the spark plugs are located. In some cases (most) after you un-plug the wiring connectors from them, you will have to 'bend' or 'turn' the coil pack in such a way that the top of it will clear the fuel rail (the long, chrome part that is sitting on top of the injectors) as you are pulling up on the coil pack in order to get it out. Be careful how you pull on the coil packs, because the boot on the bottom of it WILL come off if you're not careful and the spring-like wire (inside the boot) that connects the coil to the plug can get damaged because it is made onto the coil.
BTW, why are you replacing the plugs anyway? And which plugs are you planning to use as replacements? Just curious...
P.S. Be VERY careful whenever you are installing the new plugs. The heads on the 4.6 are aluminum, and you can crossthread / strip the threads, or over-tighten the plugs if you aren't careful.
'90 Mustang GT 25th anniversary 308ci, Holley heads/intake, Lunati cam, 70mm TB, C&L, Tremec, welded frame connectors, 3.55s.....
'06 Dodge Ram 1500 2wd Quad cab 4.7L V8,
'06 Harley FXSTI Softail,
'99 Kawasaki ZX9R Ninja
Last edited by 4rceFed281; 03-08-2003 at 04:27 AM.