|
|
5.7L V-8 1. Special care should be taken when installing spark plugs into the cylinder head spark plug wells. Be sure the plugs do not drop into the plug wells as electrodes can be damaged. 2. Start the spark plug into cylinder head by hand to avoid cross threading aluminum threads. To aid in installation, attach a piece of rubber hose, or an old spark plug boot to spark plug. 3. The 5.7L V-8 is equipped with torque critical design spark plugs. Do not exceed 15 ft. lbs. torque. Tighten spark plugs. Refer to torque specifications. 4. Before installing spark plug cables to either the spark plugs or coils, apply dielectric grease to inside of boots. 5. To prevent ignition crossfire, spark plug cables MUST be placed in cable tray (routing loom) into their original position. Refer to Spark Plug Cable Removal for a graphic. 6. Install ignition coil(s) to necessary spark plugs. Refer to Ignition Coil Installation. 7. Install spark plug cables to remaining spark plugs. Remember to apply dielectric grease to inside of boots. CABLE-SPARK PLUG DESCRIPTION Spark plug cables are sometimes referred to as secondary ignition wires, or secondary ignition cables. Plug cables are used only on the 5.7L V-8 engine. OPERATION The spark plug cables transfer electrical current from the ignition coil(s) and/or distributor, to individual spark plugs Plug cables are used only on the 5.7L V-8 engine. 8I - 32 IGNITION SYSTEM - SERVICE INFORMATION WK |