Coming home tonight towing the fiver and quite warm out. Had to stop for construction and engine temp started to climb and A/C not cooling. I noticed the fan was not cutting in as it usually did. I got moving and by keeping the right foot out of it I got home without incident. I am suspecting the fan hub but would like some other opinions before I start ordering parts. I am not real knowledgeable on the fan circuits but I don't think it would be a sending unit as the A/C didn't kick it in neither. Any thoughts?