Been a while since I could login. Changed divisions, and had to get myself around the tighter browser controls at this office.
Anyway, here's my question. Had the transmission fluid & filter changed at 55k. Under one very specific situation, the transmission will hesitate upshifting sometimes. When the truck has been sitting at work all day, when I leave the parking lot, it will sometimes not upshift out of second. But only if I am driving normally and not punching it. If I floor it from the stop sign, it shifts up all the way through the gears just like any other time I floor it. But if I just accelerate lightly, as in normal driving, it will not upshift unless I flutter the gas or come off completely then accelerate a little harder. Only happens about half the time, and literally, I have ONLY had it happen leaving the parking lot at work. It's fine when it's cold after sitting overnight, fine everywhere else I've parked it for a few minutes or a few hours. I suspect the fluid level is either too low or too high, and something about the angle of the parking spot I always take, but maybe I'm way off base. The fluid level looks like it might be a little high, but I'm no expert on how that would affect it. When they stick in a gear and it IS caused by fluid level, does that normally happen with low or high fluid? Any other things I should check?
