trancase shift motor makes noise light goes to 4 hi but i got no 4 wheel drive? on 2004 Chevrolet Tahoe

the front dif locks in, everything says it is in 4 hi, could gears be stripped in shift motor that it says it is in 4 wheel, but it is not shifting the fork over? What sensor says that it is locked in 4hi? Is that part of shift motor that it turns far enough to engage sensor but does not move the fork in tranfer case

by in Whitefish, MT on April 09, 2013
3 answers 2 comments
ANSWER by on April 09, 2013
Can be scanned to find problem. If it were on a lift could simply see if front driveshaft is turning. Might need to get some hands-on help.
COMMENT by on April 09, 2013
no message came up on dash,front shaft does not turn,it says it is in 4 hi, i can hear shift motor turn, im not sure where sensor is on t-case that says it is in 4hi
COMMENT by on April 09, 2013
Can be scanned with a good scanner, a must when troubleshooting the transfer case! Will it shift to 4 lo?
ANSWER by on April 09, 2013
possible prob. with fork shifter. bring it to tranny shop for diagnostic run(more thorough scan than general maintenence shop). tranny tech. will advise.
ANSWER by on April 10, 2013
poss actuator motor has failed start by testing it