Is the D4 light blinking while driving? If yes, an error has been detected and you need to retrieve the trouble code.
It could be a faulty Transmission Control Module, shift solenoids or Throttle Position Sensor.
If slipping occurs when 3rd gear is engaged, then the 3rd clutch is bad and if it is intermittent, it means it is failing and would sometimes work.
Monday, August 30th, 2010 AT 12:51 PM