Only happens when I start it. I have replaced the control switch on the dash and also replaced the electronic motor on the transfer case. Any ideas? My guess is a short or bad ground. Thanks, John
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
sound like problems in transfer case shift module.
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: I tried to put a 2001 chevy suburban 2500 in four
check the actuator in the front diff to see if it is working
SOURCE: 2003 Chevy needs transfer case replaced for the 2nd time
I just had my transfer case rebuilt on my 2002 2500 silverado duramax. They told me that the spring that holds the pump inplace in the transfer case wore a hold through the case. He said this was common on these transfer cases. Chevy has not acknowledge the problem. He designed a steel plate, with flanges that holds the pump in place and will not wear a hole in the case again. And as far as the post to engage it once a month, the chain turns even when in 2WHL drive.
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