Please help me. I just changed the transmission fluid on my 2000 jeep grand cherokee laredo because it was changing gears late or earlier that it should, and it would also jerk a bit when I put it in reverse or drive. While driving, it jerks slightly. I looked on the internet prior to changing the fluid and found that my jeep holds 5 quarts of fluid, but it only would take 3 1/2 quarts to replace because all of it does not drain when the oil pan is taken off. I actually put 4 quarts, but noticed that it was much more that came out than I put in. Please help me. Do you think I need to just add one more quart of fluid to some my problem.