ok, so I have 2004 international 4300. Once in a while while I am driving solenoid in my shifter starts to click, then the needles on my gauges starts to jump back and forth, the little line that's under the D on a digital display disappears and "Check Trans" light comes on. Truck still drives, but with a big delay in shifting. All it takes for me to pull over turn the truck off and on and everything is fine. It happens sometimes once in two weeks and then it would happen 10 times a day. Also I usually have to step on the brake pedal really hard in order to get it out of park and people behind, sometime tell me that I don't have brake lights. I think its all related.