RAM 1500 Van V8-5.9L VIN Z LDC (2001)
The plugs may be cleaned using commercially available spark plug cleaning equipment. After cleaning, file center electrode flat with a small point file
or jewelers file before adjusting gap.
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.
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.
Special Nomex heat shields are also used on certain cables to prevent heat damage. These shields are wrapped around the cable. A slit is provided on
the shield for removal and installation. Transfer these shields to the new cables as necessary.
1. Start the spark plug into the cylinder head by hand to avoid cross threading.
2. Tighten spark plugs to 35-41 Nm (26-30 ft. lbs.) torque.
3. Install spark plug cables over spark plugs.
4. Install engine cover.
