Spark Plug Inspection
Remove the ignition coils and the spark plugs.
Inspect the electrodes and the ceramic insulator:
Burned or worn electrodes may be caused by these conditions:
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Alternator Brush Inspection
Measure the length of both brushes (A) with a vernier caliper:
If either brush is shorter than the service limit, replace the brushes,
go to step
20.
If brush length ...