1999 GMC Suburban V8 Four Wheel Drive Automatic 155000 miles
My transfer case suddenly will not go into neutral, 4 hi or 4 lo. When the button on the dash is pressed, the front axle actuator motor hums and engages, but the actuator motors runs and appears to " hunt" for a few seconds, then stops, leaving the transfer case in 2 wheel drive. From all the research I have done, this sounds like it is probably the encoder motor sensor, and not the motor itself. (I don't have any way to check for the " CO327 code to confirm this theory.)
Is there anything else you would recommend I check before ordering and replacing the sensor?
Monday, September 27th, 2010 AT 6:34 PM