Spark Plug: Installation: 5.7L
CAUTION:
Handle the spark plugs with care. Do not drop or force the spark plugs into the wells, damage to the electrodes and/or porcelain body may occur. Always start each spark plug by hand in order to avoid cross-threading the spark plug in the cylinder head.
Always tighten spark plugs to the specified torque. Too much or not enough torque will cause damage to the cylinder head and/or spark plug and may lead to poor engine performance.
- To avoid cross threading, start the spark plug into the cylinder head by hand.
- Tighten spark plugs to 25 - 30 N.m (18.5 - 22 ft. lbs.).
- Before installing coil(s), apply dielectric grease to inside of spark plug boots (1).
- Position ignition coil into valve cover and push both spark plug boots onto each spark plug.
- Install two coil mounting bolts (3) and tighten to 12 N.m (9 ft. lbs.).
- Connect the ignition coil electrical connector (1).
- Connect negative battery cable and tighten nut to 5 N.m (44 in. lbs.).