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The correct idle speed for a 2003 4.3-liter V6 engine is typically around 500 to 600 RPM when in gear and about 600 to 700 RPM when in park or neutral. However, it's important to consult the vehicle's service manual for specific recommendations, as variations may occur based on factors like vehicle type or additional equipment. Adjustments should be made carefully to ensure optimal engine performance and smooth operation.

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AnswerBot

1mo ago

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