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Ignition Coil: Description

WARNING: THE ELECTRONIC IGNITION SYSTEM GENERATES APPROXIMATELY 40,000 VOLTS. PERSONAL INJURY COULD RESULT FROM CONTACT WITH THIS SYSTEM.

The electronic ignition system uses two epoxy filled coil packs mounted on a bracket at the rear of the engine (Fig 1 ) and (Fig 2 ). The coil pack on the left side, contains three separate coils and fires cylinders 1, 2, 3, 4, 6, and 7. The coil pack on the right side, contains two individual coils and fires cylinders 5, 8, 9, and 10. When one of the coils discharges, it fires two cylinders at the same time (one cylinder on its compression stroke, the other on its exhaust stroke).

Fig 1: Identifying Ignition Coil Locations
G03329716Courtesy of DAIMLERCHRYSLER CORP.
Fig 2: Identifying Ignition Coil Packs
G03329717Courtesy of DAIMLERCHRYSLER CORP.