B2300 Regular Cab 2WD L4-2.3L VIN A (1997)
Spark Plug: Testing and Inspection
Inspection
Spark Plug 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
If cleaning is necessary, use a plug cleaner or a wire brush. Clean the upper insulator, also.
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Damaged gasket
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Burnt
