Transmission not working properly?

Tiny
DSTEVENS29438
  • MEMBER
  • 2009 MINI COOPER S
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 109,000 MILES
Doesn't catch 4-6 gears, only sometimes when cold. Over-revs and locks into gear. Replaced TCM, transmission solenoids, fluid, and filter.
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Saturday, October 8th, 2022 AT 7:19 AM

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Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

Are there any noises from the transmission? Also, it sounds like you have already replaced all the electronics. By chance, are there any diagnostic trouble codes stored? Have you scanned the can-bus?

CAN stands for controller area network. Basically, the different modules are tied together via a few wires. This type of scan will retrieve codes regardless of the module storing them.

Here is a link showing how it's done:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

When you say solenoids, are you referring to the hydraulic selector unit?

Let me know.

Joe
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Saturday, October 8th, 2022 AT 9:50 PM

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