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The recommended operating temperature for a 2003 Jeep Grand Cherokee typically ranges between 195°F and 220°F (90°C to 104°C) when the engine is at normal operating conditions. The thermostat usually opens at around 195°F to allow coolant to flow through the engine and radiator. If the temperature exceeds this range, it may indicate a cooling system issue that needs to be addressed. Always refer to the owner's manual for specific information related to your vehicle.

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1w ago

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