Why does the Buick Excelle fan keep running continuously?

1 Answers
Gwendolyn
07/30/25 4:58am
Buick Excelle fan keeps running continuously due to a loose circuit connection. Below are the reasons and solutions for the Buick Excelle fan running continuously: 1. Loose circuit connection. Solution: Try unplugging the fan's wiring harness and perform a separate power cut. This situation could also be caused by a faulty water temperature sensor or a stuck fan relay contact. It is recommended to visit a 4S shop or a professional repair shop to replace it with a new one. 2. Cooling: The fan inside the car serves a cooling function. Solution: When the car is parked and the coolant temperature is too high, the onboard computer will automatically calculate the fan's speed and duration. Therefore, the higher the temperature, the longer the fan runs to protect the engine. This is a normal phenomenon, so there is no need to worry.
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