Spark Plug - Installation

3.7L





1. Check and adjust the spark plug gap with a gap gauging tool (1) Spark Plug Specifications

CAUTION: 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 the cylinder head by hand to avoid cross threading.
3. Tighten the spark plugs to 27 Nm (20 ft. lbs.).





4. Before installing the ignition coil (1), check the condition of the coil O-ring and replace as necessary. Apply silicone based grease such as Mopar(R) Dielectric Grease into the spark plug end of the rubber boot, coil O-rings and to the top of spark plugs.
5. Install the ignition coil (1) Ignition Coil - Installation
6. Install all the necessary air filter tubing and air intake components at the top of the engine and at the throttle body.