I got an automatic 2003 Honda Pilot. The pilot jerks hard when it's shifting gears. Mainly jerks hard when shifting into second and third gear. There's days that it won't jerk at all. I had this problem in the past and did transmission flush, but it didn't go right away. After a while the jerking just stopped. A year or so later the problem returns. I've read that there's a possibility it could be the shift solenoids. If that's the problem how do I know which one it is? Will low transmission fluid levels make the vehicle do this? Any input will be appreciated.