3500 4x2 Pickup V10-488 8.0L Magnum (1996)
Spark Plug: Service and Repair
Fig. 11 Cable Removal
PLUG REMOVAL
1. Always remove spark plug or ignition coil cables by grasping at the cable boot. Turn the cable boot 1/2 turn and pull straight back in a steady
motion. Never pull directly on the cable. Internal damage to cable will result.
2. Prior to removing the spark plug, spray compressed air around the spark plug hole and the area around the spark plug. This will help prevent
foreign material from entering the combustion chamber.
3. Remove the spark plug using a quality socket with a rubber or foam insert.
4. Inspect the spark plug condition.
PLUG CLEANING
The plugs may be cleaned using commercially available spark plug cleaning equipment. After cleaning, file the center electrode flat with a small
point file or jewelers file before adjusting gap.
CAUTION: Never use a motorized wire wheel brush to clean the spark plugs. Metallic deposits will remain on the spark plug insulator and will
cause plug misfire.
Fig. 44 Setting Spark Plug Gap - Typical
PLUG GAP ADJUSTMENT
Check the spark plug gap with a gap gauge tool. If the gap is not correct, adjust it by bending the ground electrode. Never attempt to adjust the gap
by bending the center electrode.
SPARK PLUG GAP
1.14 mm (.045 in).