tccm repacement co327
 

well i guss i spoke too soon changed modual but it was a different part number and it did not work. i wounder if i need it reprogramed or get correct part number? could it also be encoder motor/ thanks https://www.truckforums.com/forum/im...ons/icon11.gif:confused:

What year truck? Newer modules need to be programmed. C0327 is usually a failed encoder position sensor or complete encoder motor.

co327
 

my truck is 2004 sierra 2500 not hd and the tccm i bought is from auto recycler but the numbers do not match they are getting me a proper one for monday if it is the encoder sensor or motor where don i find it. thanks for you time to help henk

Shift motor is on the side of the transfer case. Sensor is inside but being a 04 I would do the motor. Also seen bad grounds below the drivers door on the body mount to the frame cause problems. Also grounds on the back of the engine block.

transfer case
 

Thank you

Is the transfer case the same as actuator motor because i did change one on my wife's 96 blazer?https://www.truckforums.com/forum/im...cons/icon5.gif

please change the words transfer case to shift motor that is what i ment

thanks

Shift motor/actuator/encoder motor all the same.

ok now I know thanks

well i guess that trying to fix my own 4wd is a real pain Itryed to install a used switch motor and the 4wd would not fit so i put the origional back in. my 4wd started to work for a day them it stopped for a couple of hrs then it worked again. I got a new shift motor and now it doesn't work at all. would this be wireing i also replaced the TCCM with no luck. my truck is a 2004 sierra crew with short box 6L engine i will be checking the grounding

TCCM needs to be programmed for it to work.