Hi,everyone,I have noticesed these problem for sometime now.when the car is cold & u push it hard no problem it changes fine,but when it is cold it seem as if it stuck on 5rpm so it can't go feather fo it to change.so when going uphill,it kickdown to lower gear.it goes very slow.it seems as it does no built enough preassure,to change to next gear.any body with a help please