SPARK PLUG REMOVAL/INSTALLATION [MZI-3.7]
| CAUTION | If a spark plug that is not as specified is installed, engine performance will be deteriorated. Install only the specified spark plug when replacing. |
- Disconnect the negative battery cable.
- Remove the engine cover. |j]
- Remove the dynamic chamber. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7]»(ref-345348-S33859003282009102000000) .)
- Remove the ignition coils. (See «IGNITION COIL REMOVAL/INSTALLATION [MZI-3.7]»(ref-345356-S39327452432009102000000) .)
- Remove the spark plugs using a plug-wrench. CAUTION: Apply small amount of the specified dielectric grease to the inside of the ignition coils, then install the ignition coils to the spark plugs. Specified grease: Motorcraft XG-3A
- Install in the reverse order of removal. Tightening torque 9-20 N.m {91-204 kgf.cm, 79-177 in.lbf}
