Installation Procedure

CAUTION:

If the boot to wire movement has occurred, the boot will give a false visual impression of being fully seated. Ensure that the boots have been properly assembled by pushing sideways on the installed boots. Failure to properly seat the terminal onto the spark plug will lead to wire core erosion and result in an engine misfire or crossfire condition, and possible internal damage to the engine.

Fig 1: Spark Plug Wire Boots And Plugs (Right Side)

Courtesy of GENERAL MOTORS CORP.

If reinstalling the old spark plug wires, apply dielectric grease GM PN 12345579 (Canadian PN 10953481), or equivalent to the inside of the spark plug wire boots.
If required, install the appropriate right side spark plug wire(s).
Close the spark plug wire separators (2).
Install the appropriate right side spark plug wire boot(s) (1) to the spark plug(s).

Fig 2: Spark Plug Wire Boots And Plugs (Left Side)

Courtesy of GENERAL MOTORS CORP.

If required, install the appropriate left side spark plug wire(s).
Close the spark plug wire separators (1).
Install the appropriate left side spark plug wire boot(s) (2) to the spark plug(s).

Fig 3: Spark Plug Wire Boots

Courtesy of GENERAL MOTORS CORP.

Install the appropriate bank 1 spark plug wire boot(s) (1), or bank 2 spark plug wires boot(s) (2) to the ignition coil.

Fig 4: Spark Plug Wire Inspection Points

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Inspect the spark plug wires for proper routing (1, 2, 3, 4, 5, 6) and installation.
1. Push sideways on each boot in order to inspect the seating.
2. Reinstall any loose boot.
3. Any time the spark plug wire or boot is installed on the spark plug, new dielectric grease needs to be applied inside the boot.
Install the engine cover. Refer to Engine Cover Replacement .