Noteworthy Information

There are important considerations to point out when servicing the ignition system. The following Noteworthy 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 40000 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!
^ Crankshaft position sensor clearance is very important! Excessive clearance can result from improper installation, dirt/debris or the old O-ring left in the block cavity when a new sensor is installed. Insufficient clearance will damage the sensor. The sensor must not contact the rotating crankshaft reluctor wheel at any time. Sensor to reluctor wheel clearance is not adjustable.
^ 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 down onto the plugs as possible.
^ Ensure the boots are installed right side up.
^ Lift the module beauty cover at the end opposite the module to remove.
^ Repair a torn perimeter seal with 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 Ignition Control Module Replacement for further details.