I did all of these because of this problem. This problem first happened last May when I climbed a long upgrade. Suddenly I saw the techo significantly increasing and then following the O/D flashing. Since then it become worse and worse. I replaced the VB last Nov. The problem unsolved. Then I thought it might be TC. Two weeks ago I replaced the TC. The problem still there. Then I thought it might be the solenoid. I replaced the solenoid yesterday. I still cannot solve this problem. Today, I did the line presure test, they seem OK even a little bit low but still within the normal range. Now I have no idea what should I do next.
