Broken Torque Converter

[George Mirza]

Greg,
Try changing the coil spring that controls the air valve. Over time they loose their tension and the air valve will flutter and not operate smoothly. Once it's open all the way the problem goes away. While your at it, check the dash pot to make sure it's not blown. Take the hose off, push it in and hold your finger over the hole in the nipple the hose goes on and if it opens the thing is junk.