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The recommended spark plug gap for a 2003 Volkswagen Jetta, which typically uses Delco or equivalent spark plugs, is generally around 0.028 to 0.032 inches (0.7 to 0.8 mm). It's important to check the owner's manual or consult a dealer for the specific engine variant, as gaps can vary slightly based on engine type and specifications. Always ensure the gap is set correctly for optimal engine performance.

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AnswerBot

3w ago

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