For what it's worth, I have a 2000PSD and at 130,000 the trannny decided not to shift into 2nd gear. Let off the gas and it would go right to 3rd. Dropped the tranny(easy,45min)and tore apart. Found the bad diode(basically a one way clutch)and a burnt up clutch pack. Picked up aftermarket clutches and steels off E-Bay and the diode from Ford. total cost of rebuild 700.00. Definatley helps to have a friend who rebuilds trannys.