Shoud both cooling fans cycle on and off on a 1991 Buick regal?

Yes, both cooling fans on a 1991 Buick Regal should cycle on and off as needed to regulate engine temperature. The primary fan typically activates when the engine reaches a certain temperature or when the air conditioning is in use. The secondary fan may engage under higher temperature conditions or load. If both fans are not cycling correctly, it could indicate a problem with the cooling system or fan controls.