Grand Cherokee 4WD V8-4.7L VIN N (2000)
Spark Plug: Service Precautions
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.
Spark Plug: Service Precautions
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.