Spark Plug Cable: Installation

Failure to route the cables properly could cause the radio to reproduce ignition noise, cross ignition of the spark plugs or short circuit the cables to ground. See Fig 1.

1 - Fuel Test Port

2 - Fuel Rail

3 - Fuel Injector

4 - Spark Plug Cables

The system uses two epoxy filled coil packs mounted on engine block post in the valley under the intake manifold. The rear coil pack, contains 3 separate coils and fires cylinders 1, 2, 3, 4, 6, and 7. The front coil pack, contains 2 individual coils and fires cylinders 5, 8, 9, and 10.

1. Install wire separator clip on double ended stud on rear of engine block first. This is the wire separator clip closest to the ignition coil insulator boots.
2. Connector coil insulator boots over respective ignition coil side post. Take care to match cylinder number on ignition coil with cylinder number on ignition cables. Also, make sure to hear the audible click while making the connection to the coil post.
3. Sequentially install wires into separators clips mounted on double ended studs mounted on the outer side of valve cover. See Fig 2, Fig 3, and Fig 4. Start from the rear and work forward to the front of the engine.
4. After installing all wires into separator clips, install spark plug insulator boots over respective spark plugs sequentially from back of engine towards the front of engine. Make sure to hear the audible click during installation of spark plug boots.
   Fig 2: Ignition Cable Routing

   Courtesy of DAIMLERCHRYSLER CORP.