Do I have to remove the plenum? I don't see how to get at them if I don't. Do I have to remove the plastic at the base of the windshield (and wipers) to remove the plenum?? It's a 2001 Taurus btw.
we also took the plenum off
if the coil pack is on the back, just remove the pass side wiper cowl(IIRC, the wiper arms can be left in place, and now is the time to inspect/replace the cabin air filter), and the bottom piece of it(screws are obvious once the top is removed), then you can get the coil out of the way and the plugs out, several extensions inserted one at a time may come in handy