Landcruiser 4WD L6-4.5L (1FZ-FE) (1993)
5. Disconnect high-tension cords from spark plugs.
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Remove the 2 mounting bolts of the No. 1 and No. 2 cord clamps.
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Disconnect the high - tension cords at the rubber boot. DO NOT pull on the cords.
NOTE: Pulling on or bending the cords may damage the conductor inside.
6. Using a 16 mm plug wrench, remove the spark plugs.
7. Using a spark plug cleaner or wire brush, clean the spark plug.
8. Visually inspect spark plugs.
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Check the spark plug for electrode wear, threads damage and insulator damage.