Hi, i have had a 1998 freelander 1.8 petrol for just under a year. Its now got 70 k on the clock and ever since i have had it, i find that there is a constant whine from underneath. its more pronounced in the front of the car, but then again i've never been in the back while driving.Is this normal? ( The noise that is) Also recently i changed the two front tyres, balanced and tracking on all 4, and there is a second noise that has appeared like a tyre that is flat. This will only occur when its cold and goes away after about 10 miles. I have 27.5 psi allround. If Any one can help, i would be very greatfull.