2001 X5 After trans flush has shudder symptoms and torque converter not locking up

[JCL]

Originally Posted by upallnight

If you got the transmission that hot that it was burning your hand then the trans was too HOT. If I was to do the trans drain and fill I would drain the trans the day before, let it sit over night and fill it the next day after running the engine for about 5 minutes.

Remember High School Physic things expand when they are heated. So if the ATF in the trans was that hot it has already expanded that you actually refill with less ATF so you are LOW on ATF.

Also what type of ATF did you use? Was it the same as what came with the truck or was it a different brand such as Mobil 1 or Castrol?

Agree it was too hot by the OPs description.

If it was low on ATF, then it would be more likely to have a problem when cold. It appears to be OK when cold, but have a problem when hot. That suggests too much fluid, or the transmission being sensitive to the fluid viscosity (lower when hot), or a problem in a circuit that isn't in play when cold.

OP said fluid from dealer.