B3000 2WD V6-3.0L OHV (1994)
Spark Plug: Testing and Inspection
SPARK PLUG SPARK TEST
NOTE: This test assumes the rest of ignition system is operating properly (meaning secondary voltage does reach the spark plugs).
1. Remove the spark plug.
2. Connect the spark plug to a high-tension lead.
3. Hold the high-tension lead and spark plug with insulated pliers 5-10 mm (0.20-0.39 in) from a ground.
4. Crank the engine and verify that there is a strong blue spark.
5. If there is no spark replace faulty spark plug.
Spark Plug Inspection
VISUAL INSPECTION
Spark plugs
Check the following points. If a problem is found, replace the spark plug.
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Damaged insulation
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Worn electrodes
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Carbon deposits
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Damaged gasket
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Burnt
NOTE: If cleaning is necessary, use a plug cleaner or a wire brush. Also clean the upper insulator.