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- Fri Jun 11, 2021 1:44 pm
- Forum: Drivetrain
- Topic: transmission shifting too high rpm
- Replies: 3
- Views: 3013
transmission shifting too high rpm
Transmisson won't shift into higher gears until engine rpm reaches 2400. Then if I back off the throttle a bit below 2000 rpm, it starts downshifting. Exhaust brake switch is not on (but it sort of acts like that) . Ran Error codes and got 66 00. Serial Commnications Interface (SCI) fault. Reccomend...