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An erratic temperature gauge on a 2004 Chevy Venture can be caused by several factors, including a faulty coolant temperature sensor, a damaged wiring harness, or a malfunctioning instrument cluster. Additionally, low coolant levels or air pockets in the cooling system can affect readings. It's advisable to check for any diagnostic trouble codes (DTCs) and inspect the related components for proper functioning. Regular maintenance and prompt attention to any cooling system issues can help prevent further problems.

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1mo ago

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