Jan 312018
 
  1. Connect the Examiner diagnostics tool .
  2. Start the car and put the gear to idle.
  3. With the engine running at minimum, read the value of the clutch disk speed parameter
  4. If the clutch disk speed is over zero there is a clutch drag condition
  5. Calibrate the clutch parameters in active diagnostics through “enable clutch self calibration “.
  6. Repeat from step 2 to step 4. If the fault no longer occurs: continue from step 7.
  7. If there is no clutch drag, warm the engine and the clutch by a series of take-offs (with the accelerator pressed down over half of its stroke)
  8. Repeat steps 1 to 4
  9. If the situation of step 4 occurs, there is a clutch drag condition and therefore the clutch mechanism needs to be replaced; otherwise there is no clutch drag.

NOTE: Clutch drag often occurs with a hot engine

 Posted by at 7:14 pm