Spark Plugs: Notes

WARNING: This page is about a different car, the 2003 Mercury Mountaineer, 2003 Lincoln Aviator, 2003 Ford Explorer Sport Trac, 2003 Ford Explorer Sport, and 2003 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: See vehicle underhood emissions information decal for spark plug gap specification.

NOTE: If reusing originally installed spark plugs, reinstall them in original position. Some cylinders use platinum ground electrodes and some cylinders use platinum positive electrodes. Replacement platinum spark plugs are double platinum electrode spark plugs and are used for all cylinders.