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2001 X5 After trans flush has shudder symptoms and torque converter not locking up
There really is no good answer that I can find about this issue:
1) I changed my Trans oil (purchase the new oil from the BMW dealer based on VIN#)
2) Followed the correct procedure of draining, warming up the engine, revving up the RPM with AC running, filling the trans fluid
Symptoms:
1) No issues when the vehicle has not warmed up.
2) No issues during hard acceleration
3) No OBD Codes
4) RPMs are bouncing up and down about +-50 RPM at any speed
5) Random and intermittent slight shudder which goes away if I accelerate of decelerate
Potential Diagnosis:
1) Could be not enough Transmission Oil? (Added more oil which did not help)
2) Torque converter lock-up solenoid is not locking up because the viscosity of the new fluid is different than the old fluid?
3) Transmission torque/pressure sensor?
Solution:
1) No one has figure it out on the forums. Seems like people are stabbing in the dark with random guesstimates.
Anyone have any suggestions?
Thanks,
Vic
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