so I ran it hard for four hours straight it was spiking well over 250-260 if I let it sit to long. I noticed a little coolant under the truck It hasn’t leaked in the last week! Got a lube oil filter and the jiffy lube guy said I had a water pump leak and should take it to the dealership cause it’s still under warranty! I’m also getting a slight chirp! I think the chirp is the belt And I’m worried my Chevy dealer may want to try and keep my truck and the busy season just hit! I guess I’m wondering could it have back flowed coolant out the reserve tank since it hasn’t leaked since? Are these setups bad on engine water pumps? I know I need to take it to the dealership and let them know it’s something that can’t sit around for two or three days!