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Many things could cause that: blown fuse, bad relay, corroded wiring (if you live near sea water or in the North), bad temp sensor (have to have a scantool to check it), or the following.. First are you sure they should be going? They go based on the temperature sensor reading. Are you overheating? If you are not overheating don't worry about it. If you are overheating check your coolant level first. You could have air in the system that would cause it to over heat. If you have air and you haven't taken the system apart in the last month, find the coolant leak.

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Q: What would cause the radiator fans to stop working on a 1999 intrigue - if is possible that a sensor broke if hit pothole?
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