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Hello all. I recently had a TF case malfunction. I changed the actuator and it solved the problem. ( Thanks to a lot of help from Martin-C and this thread).Upon inspection I noticed the same wear pattern on the plastic gear. Now, I understand (somewhat) that this gear is responsible for engaging the multi-plate clutch assembly in the TFC. When it slips or becomes worn, the clutches no longer have sufficient axial force to transfer the torque from input to output. When I switched off/on, the code cleared. When I started it remained off. If I start, don't move, and then switch off, I hear a ticking noise coming from the actuator. When I pulled off I felt the car slip maybe once or twice followed by the trouble code (after which there was no slipping or lurching). This slipping may be caused by the actuator not pushing the clutches together sufficently.
Moving along in diagnosis without GT1 etc, I unplugged the actuator harness and there was no slipping at all as all the power goes straight to the rear without the TFC engaging. Bit the bullet and bought the actuator. It worked. Hope this helps fellow users.
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12-19-2011, 11:28 PM
Threaded Mode
