Voyager V6-3.3L VIN R (1999)
Spark Plug: Description and Operation
SPARK PLUGS RESISTER
DESCRIPTION
All engines use resistor spark plugs. They have resistance values ranging from 6,000 to 20,000 ohms when checked with at least a 1000 volt spark
plug tester.
Do not use an ohm meter to check the resistance of the spark plugs. This will give an inaccurate reading.
Setting Spark Plug Electrode Gap
Refer to the Specifications for gap and type of spark plug.
SPARK PLUGS PLATINUM
DESCRIPTION
The engine utilize platinum spark plugs. Refer to the maintenance schedule.
All engines use resistor spark plugs. They have resistance values ranging from 6,000 to 20,000 ohms when checked with at least a 1000 volt spark
plug tester.
Do not use an ohm meter to check the resistance of the spark plugs. This will give an inaccurate reading.
Platinum Pads
The spark plugs are double platinum and have a recommended service life of 100,000 miles for normal driving conditions per schedule A. The
spark plugs have a recommended service life of 75,000 miles for severe driving conditions per schedule B. A thin platinum pad is welded to both
electrode ends as shown. Extreme care must be used to prevent spark plug cross threading, mis-gaping and ceramic insulator damage during plug
removal and installation.
CAUTION: Cleaning of the platinum plug may damage the platinum tip.
