My 2001 Chevrolet Cilverado1500/FWD 5.3 V8 Vortec.

Question = MY FWD SHIFTED IN TO GEAR AND I HAD TROUBLE GETTING IT OUT WHEN I DID I
PULLED THE FUSE, I HAVE BEEN TOLD IT IS THE  ENCODING MOTOR/SHIFT ACTUATOR IS THIS
TRUE AND HOW CAN I TEST IT, IF I  CAN, I DON'T WANT TO SPEND $100 ON A NEW ONE TO
FIND OUT IT ISN'T THE  PROBLEM  THANKS.


Answer:
It is possible that the encoder motor is bad, or the encoder motor sensor.  These 2 are pretty
common, not to say the transfer case module cant also  fail.

Only real way to diag. is with a scanner that can control the encoder motor  and look at module data,
along with some
volt/ohm meter tests.


2005 GMC Sierra 5.3 liter V8.
Repairs: I removed and replaced the transfer case. Upon reassembly of the shift control module I
realized that the orientation of the shift motor and transfer case shift spline were  off one half turn  so
i took the motor apart spun the gear around and reinstalled it. Being shift on the fly i now have the
wrong gear and no 2wd 4lo 4hi indicator lights. What is the proper fix.
Need to know how to fix this.
Answer:
Taking the encoder motor apart was a bad idea. To align the encoder and the shaft, all you needed
to do was turn the shaft a little, then install the encoder. If it was far out of align, you could power up
the motor with a battery or charger on the red and black wires. Switching wires will turn the motor the
other direction.
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GMC And Chevrolet Shifting Poblems


1993 chevy pickup 1500. Transmission rebuilt.
Question: I have no low gear even in manual low. It has 4l60e trans. We checked fuses.


Answer:
Sounds like a problem with the 1-2 shift solenoid. Either a wiring problem going to the connector, the
wiring inside the trans, or a bad solenoid. Pink wire at transmission connector powers all solenoids.
Red wire inside feeds 1-2 shift solenoid, Lt. Green wire is the solenoid control circuit from the pcm.
Shift solenoid resistance should be between 19-31 ohms.