Noteworthy Ignition Information

There are important considerations to point out when servicing the ignition system. The following information will list some of these to help the technician in servicing the ignition system:
^ The ignition coils' secondary voltage output capabilities are very high - more than 40,000 volts. Avoid body contact with ignition high voltage secondary components when the engine is running or personal injury may result!
^ The crankshaft position sensor is the most critical part of the ignition system. If the sensor is damaged so that pulses are not generated, the engine will not start!
^ The crankshaft position sensor clearance is very important! An excessive clearance can result from improper installation, or from dirt, debris, or old O-ring left in the block cavity when a new sensor is installed. An insufficient clearance will damage the sensor. The sensor must not contact the rotating crankshaft reluctor wheel at any time. The sensor to reluctor wheel clearance is not adjustable.
^ The ignition timing is not adjustable. There are no timing marks on the crankshaft pulley.
^ If a boot remains attached to a coil or spark plug, twist the boot prior to removal.
^ Check the boot for a missing or damaged internal spring.
^ Do not re-install any component that has visible signs of damage.
^ Install the boots onto the coils until bottomed out. Then install the assembly onto the spark plugs. If this is not possible due to space limitations, just-start the boots onto the spark plugs and then install the coil assembly as straight as possible on to the plugs.
^ Ensure the boots are installed right-side up.
^ Lift the module beauty cover at the end opposite the module to remove the cover.
^ Repair a torn perimeter seal with an RTV sealant.
^ Adhere to the torque specifications when installing the cassette to the cam cover and the module to the cassette. Refer to Ignition Coil(s) Replacement or to Ignition Control Module Replacement for further details.