Lower rad hose pressure/tank pressure

BG lly 2500

New member
Aug 9, 2021
Hey guys, for a while now I've noticed my lower rad hose and reservoir will hold pressure for as long as the truck is off. 2004.5 LLY. I've let it sit for a couple weeks and if I open the hood it will have pressure in the reservoir still and the lower rad hose too, the one coming off bottom of water pump. Lately I've noticed that sometimes it will drip from water pump if there's a big temperature fluctuation outside. I'm hoping this inst my HG's. Any insight would be greatly appreciated. Thanks

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