I was wondering if anyone knows about WHAT you have to do to change the Spark Plugs on a 2001 Nissan Pathfinder 3.5 Liter engine. I looked at it and it looked like it was gonna be a bitch. So I called up Nissan and they said it was $315 for labor...and LABOR ALONE. So I am definatly gonna do it myself. But I was wondering if ANYONE can PLEASE give me some advice on WHAT needs to come out (if anything) to change th eplugs. AND HELP would be great. THANKS in ADVANCE.