Instruct: Classify an Amazon review as either positive or negative.
Query: defective new

The fan clutch from Hayden I thought would be a quality item, but it let me down! It failed on my first trip over the mountains. Runs fan continuously during warm-up, delays coming on until engine is getting hot and then stays on for a very long time. None of this lack of sensitivity is good for fuel economy in my RV. When the fan is running constantly the water temp is too cold. I just hope I can return this item and buy a different brand. What a nuckle busting job to do again! The original clutch lasted 32 years.