volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Spark Plug - Correct Application|Page 2516 > < Spark Plug - Correct Application|Page 2514
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Spark Plug: Testing and Inspection

PROCEDURE

Checking Spark Plug For Wear, Damage, Or Deposits

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Remove spark plug wire and spark plug.

Visual Spark Plug Inspection

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Inspect the spark plug for:

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Improper gap

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Carbon deposits

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Cracked center electrode insulator

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Burned or worn electrodes (may be caused by):

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Excessive mileage

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Lean fuel mixture

Spark Plug - Correct Application|Page 2516 > < Spark Plug - Correct Application|Page 2514