4LO sounding whine in 2H at low speed

Been driving very slow today trying to avoid debris from the hurricane and noticed a distinct whine from the front half of the truck.

I thought at first I might have had something suck underneath that was dragging or scraping a wheel but nothing. It sounds like an extremely mild version of the 4LO whine.

Any ideas? I did use 4H today for a few minutes to get through some mud but that was 13 hours ago and it’s been in 2H since.

 

I just have to lol. I know you have the pavement princess now but .......

Good luck, probably just needs to dry out and be cleaned up. At least you graduated from the I need a new free engine club.

 

Is it not the engine fan?