# Coolant Doesn't Seem To Be Cycling Properly **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [January 13, 2015, 3:23am UTC](https://community.cartalk.com/t/coolant-doesnt-seem-to-be-cycling-properly/88663 "2015-01-13T03:23:43Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Garofalo](https://avatars.discourse-cdn.com/v4/letter/g/ea666f/32.png) [@Garofalo](https://community.cartalk.com/u/Garofalo)\ **Post date:** [January 13, 2015, 3:23am UTC](https://community.cartalk.com/t/coolant-doesnt-seem-to-be-cycling-properly/88663/1 "2015-01-13T03:23:43Z")
I have a 93 Jeep Cherokee, I just replaced the thermostat and the radiator cap, it’s not overheating, however the radiator cap isn’t even warming up and the thermostat housing heats up quite a bit. The hose from the radiator to the thermostat gets very hot, but I don’t feel anything being pumped. The coolant is also being drained from the reservoir, but I see little to none leaking underneath the vehicle. I pop off the radiator cap while it’s in idle and see no movement and the coolant stays cool. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [January 13, 2015, 3:34am UTC](https://community.cartalk.com/t/coolant-doesnt-seem-to-be-cycling-properly/88663/2 "2015-01-13T03:34:58Z")
With a 20+ year old engine, it is very possible that the vanes of the water pump have been eroded to the point where the water pump just isn’t pumping. ---
**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\ **Post date:** [January 13, 2015, 6:41am UTC](https://community.cartalk.com/t/coolant-doesnt-seem-to-be-cycling-properly/88663/3 "2015-01-13T06:41:57Z")
Are you getting plenty of heat into the cabin?