Ignition Cable: Service and Repair
REMOVALFailure 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.
1. Release the fuel pressure.
2. Disconnect the negative battery cable.
3. Remove the air cleaner assembly.
4. Remove the Intake Manifold, refer to the Engine/Manifolds/Intake Manifold for more information.
5. Use the following procedure when removing the high tension cable from the spark plug. Grasp the terminal as close as possible to the spark plug. Rotate the cover boot 1/2 turn slightly and pull straight up in a steady motion.Do not use pliers and do not pull the cable at an angle. Doing so will damage the insulation, cable terminal or the spark plug insulator. Wipe spark plug insulator clean before reinstalling cable.
6. Remove spark plug cable from coil first.
7. Always remove the spark plug cable by grasping the top of the spark plug insulator, turning the boot 1/2 turn and pulling straight up in a steady motion.
INSTALLATION
Install cables into the proper engine cylinder firing order sequence. Refer to Specifications.
When replacing the spark plug and coil cables, route the cables correctly and secure them in the proper retainers.
Failure to route the cables properly may cause the radio to reproduce ignition noise. It could also cause cross-ignition of the plugs, or, may short-circuit the cables to ground.
When installing new cables, make sure a positive connection is made. A snap should be felt when a good connection is made.
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.
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.
NOTE: When replacing the spark plug and coil cables, route the cables correctly and secure them in the proper retainers. Failure to route the cables properly may cause the radio to reproduce ignition noise. It could also cause cross-ignition of the plugs, or, may short-circuit the cables to ground.
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 and and. 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.
5. Install Intake Manifold.
6. Install Air Cleaner Assembly.
7. Connect the negative battery cable.
8. Use a diagnostic scan tool to pressurize the fuel system. Check for leaks.