Dakota Quad Cab 4WD V6-3.9L VIN X (2001)
CAUTION: Never use a motorized wire wheel brush to clean spark plugs. Metallic deposits will remain on spark plug insulator and will cause plug
misfire.
INSTALLATION
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.
Always tighten spark plugs to the specified torque. Over tightening can cause distortion resulting in a change in the spark plug gap or a cracked
porcelain insulator.
In this engine: When replacing the spark plug and ignition coil cables, route the cables correctly and secure them in the appropriate retainers. Failure
to route the cables properly can cause the radio to reproduce ignition noise. It could cause cross ignition of the spark plugs or short circuit the cables
to ground.
1. Start the spark plug into the cylinder head by hand to avoid cross threading.
2. In these engines: Tighten spark plugs to 35-41 Nm (26-30 ft. lbs.) torque.
3. In these engines: Install spark plug cables over spark plugs.
