Operation CHARM: Car repair manuals for everyone.
Home >> Lincoln >> 2007 >> MKZ FWD V6-3.5L VIN T >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Spark Plug >> Service and Repair
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Spark Plug: Service and Repair

SPARK PLUGS







Exploded View

Removal

Both sides
1. Disconnect the battery ground cable.

LH side
2. Disconnect the crankcase vent tube quick connect coupling from the valve cover fitting and position aside.

RH side

3. NOTE: The upper intake manifold must be removed to access the RH spark plugs.

Remove the upper intake manifold.

Both sides
4. Disconnect the 6 ignition coil-on-plug electrical connectors.

5. NOTE: When removing the ignition coil-on-plugs, a slight twisting motion will break the seal and ease removal.

Remove the 6 bolts and the 6 ignition coil-on-plugs.

6. NOTE: Use compressed air to remove any foreign material in the spark plug well before removing the spark plugs.

Remove the 6 spark plugs.

Installation

Both sides







1. Inspect the 6 spark plugs.







2. Adjust the spark plug gap as necessary.
3. Install the 6 spark plugs.
- Tighten to 15 Nm (11 lb-ft).

4. NOTE: Apply a small amount of dielectric grease to the inside of the ignition coil-on-plug boots before attaching to the spark plugs.

Install the 6 ignition coil-on-plugs and the 6 bolts.
- Tighten to 6 Nm (53 lb-in).

5. Connect the 6 ignition coil-on-plug electrical connectors.

RH side
6. Install the upper intake manifold.

LH side
7. Position and connect the crankcase vent tube quick connect coupling to the valve cover fitting.

Both sides
8. Connect the battery ground cable.
pro multis · About Operation CHARM