where the spark plugs at my 406?
Ok so I'm guessin that cos your askin this question that your car is later than 2000. The plastic cover on top of your engine is held on with 6 black screws. Using a large flat blade screw driver turn each one 90 degrees. Now, lift off the cover and it will reveal a long black strip with a wire plugged into the end. I think It's held in place with 8 mm bolts, undo these and lift it off to reveal your spark plugs.