Spark Plug: Installation: 5.7L/6.4L

WARNING: This page is about a different car, the 2015 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

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(s) into the cylinder head by hand.
Tighten the spark plugs as follows:
- 5.7L Tighten to the proper specifications. Refer to CAPACITIES AND RECOMMENDED FLUIDS, SPECIFICATIONS .
- 6.4L Tighten to the proper specifications. Refer to CAPACITIES AND RECOMMENDED FLUIDS, SPECIFICATIONS .
Install the ignition coil(s). Refer to COIL, IGNITION, INSTALLATION .
Install the engine cover.
Connect negative battery cable.