Removal & Installation (B4000)

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Disconnect the negative battery cable.
Disconnect the ignition coil harness connectors. See Fig 1.

CAUTION: It is important to twist the spark plug wire boots while pulling upward to avoid possible damage to the spark plug wire. Spark plug wires must be connected to the correct ignition coil terminal. Mark spark plug wire locations before removing.

Remove the spark plug wires. See Fig 2.
Remove the bolts and remove the ignition coil. See Fig 3.
To install, reverse removal procedure. Wipe the coil towers with a clean cloth dampened with soap and water. Be sure to reinstall the radio ignition interference capacitor under the correct ignition coil mounting bolt. Apply a silicone dielectric compound to the inside of the spark plug wire coil boots. See TORQUE SPECIFICATIONS .

Fig 1: Locating Ignition Coil Harness Connector - B4000

Courtesy of MAZDA MOTORS CORP.

Fig 2: Removing & Installing Spark Plug Wires - B4000

Courtesy of MAZDA MOTORS CORP.

Fig 3: Removing & Installing Ignition Coil - B4000

Courtesy of MAZDA MOTORS CORP.