4L60E Dip Stick pops out

What would cause the transmission dipstick to keep popping out? When I installed the motor, I drained amd refilled it and replaced the filter. The fluid level is correct. Could it just be vibration from changing to poly motor mounts? Could the dip stick be worn out and not properly grabbing the top of the tube? I am worried there is some sort of pressure buildup inside the trans.

Any ideas?

Mine does the same thing. It never pukes any fluid though, and the trans performs just fine.

Hmmmm...

mine did it, it was caused from high pressure. My tranny ended up going ka-boom, idk if its related or not though

I had the trans rebuilt last fall and it has been fine until I just rebuilt the motor. I did not change the torque converter so I am not sure what is going on. I guess it is time for a visit to the trans shop.