Howdy--We just recently purchased an '02 Freelander. About two weeks after purchase we we out and as we pulled into a parking lot the temp gauge spiked and steam was rolling out from under the hood. Replaced a radiator/heater hose. Now a couple of times the temp gauge has spiked and engine steam. After pulling off road for a few minutes, the temp drops and vehicle works fine. Also the overflow reservoir fills then lowers back down once engine cools off. Any ideas? anyone?