K 2500 Truck 4WD V8-454 7.4L VIN J SFI (1997)
Ignition Cable: Service and Repair
Spark Plug Wire Routing Right Side
Spark Plug Wire Routing Left Side
SERVICE CAUTIONS
1. Twist boots one-half turn before removing.
2. When removing the boot, do not use pliers or other tools that could tear the boot.
3. Do not force anything between the wire and the boot, or through the silicone jacket of the wiring.
4. Do not pull on the wires to remove the boot. Pull on the boot or use a tool designed for this purpose.
5. Special care should be used when installing spark plug boots to ensure the metal terminal within the boot is fully seated on the spark plug terminal
and the boot has not moved on the wire.
WARNING: If boot to wire movement has occurred, the boot will give a false visual impression of being seated. Make sure that 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.
