Where is the spark plug located in a 2001 Mazda Protege?

Answer 1

First you're not looking for the right wire type... If you're looking for a standard 1/4" black wire that would normally run from a distributor cap to the plug you would be wrong... so:

Look right on top of the aluminum engine block and you will see the word Mazda and behind that you'll see your engine size. Between the two you'll see a round black rubber grommet and two black blocks with wires running through them (these are the ignition coils). If you look closely you'll see another rubber grommet under all the wiring. Your plugs are under all that wiring in about 4" deep wells. First you will need to remove four bolts that hold the coils into place (2) per for a total of (4) bolts. If I recall correctly you will need a 10mm socket to get these out. Before continuing mark each of the four cables with a number (1-4, left to right) so you don't get these mixed up. Next pull on the rubber grommet labeled #1 (NOT THE WIRE) and pull it all the way out. You will see your plug waaaay down below. Repeat.

Hints: Using a 6" extension on your socket remove all the old plugs first. When doing so use the rubber sleeve that is inside the socket to help get the plug out of the well. When putting the new plugs in remove the rubber sleeve from inside the socket so that the socket can be pulled off the plug and out of the well.

Notes: 1.) Always use an anti-seize compound on the threads of the new spark plugs. This can be purchased along with the plugs. 2.) NEVER over-tighten. Snug is 'snuff. Hope that helps.