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Won't engage in D or R without revving engine
Posted to Transmission Forum on 8/31/2016 10 Replies

Replaced auto trans in vehicle due to broken wave plate/ washer (no reverse or drive). after installed, used transmission will not engage in Drive or Reverse unless the engine is revved and when RPM drops to near idle, it drops back out of gear. Has Code 23 (P0720) Output Shaft Speed Sensor Fault. What is the likelihood that a new OSS will resolve this issue.

Rich Amore
Fort Myers, Florida, USA

10 Replies Received (View Replies)


car Vehicle Data

2002 Mitsubishi Eclipse GT 3.0L

Engine3.0 L
Trans4-speed Automatic (Electronic)