I have a 2002 125 Hp with the same problem. I´m getting used to it because it has the problem since i´m driving this vehicle (2004). Of course, Ford dealers allways tell me i´m the only one with this problem. Would be nice to now if there´s somebody around who has the problem solved. At first i thought it would be engine oil with the wrong viscosity, but after changing the oil it did not improve.