SOURCE: 99 silverado 4wd went out... transfer case?
a little tip a friend gave me in unlocking the 4wd drive on ramps or hill and then put in neutral let roll back a foot put in park and then let off the 4wd
when in 4wd the hubs get a little heated cause they need greased so they stick into position making it hard to come out of 4wd this which i spoke of i got stuck in the senerio where i almost drove home in 4wd from 300 miles away but i called my friend he told me bought this and so i thought it could help you
your hubs just locked up on you your bearings are going to need to be packed again this is normal for this
hub
SOURCE: 4WD Hi does not work on 96 Chevy K1500 Suburban
we had this same problem, under the car there is a modular,near the transfer case, it just unlugs and plug a new one in.20 min.. it is approx. $80.00 item,$ 350.00 to have it done. we were in yellowstone when we had this problem. hope this helps
SOURCE: I have a 2003 chevy blazer LS, 2-door 4wd w/
try putting in nuetral and then shift into high gear . if still does not work sounds like the 4x4 acctuator is bad
SOURCE: 2001 Chevy 4WD button lights don't come on - 4WD wont engage
check the solenoid on the front chunk these vehicles have had a lot of problems with these solenoids. have personally replaced about 10 of these on 98-02 models.
SOURCE: 4x4 quit working
Jack up the rear wheels and put it on jack stands. Have someone get in it and put it in 4wd and drive. Release the brake. Rear wheels are spinning only right. Don't get under it but look under it and see if the front driveshaft is spinning. If the shaft is spinning but the wheels aren't it is likely a bad front axle actuator. If the front shaft isn't spinning it is a transfercase problem.
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