Hi guys, sorry for not getting back to you about my loss of coolant problems, and about the engine not running right. I found the problem on my rover. It was the water pump making the weird noise. So i order a water pump took on the challenge and replace it myself. I had to drain the coolant,take off fan and belt. The only problem i had was getting the bolts loose off the water pump. After i change out everything rover is running great. The old pump shaft was bad.Thats were the noise was coming from. Thanks for your replys!!!!!!! 99 disco1 SD 122,340.