i have a 91 blazer with a 4.3 auto, and a transfer case that is stuck in 4 low. any ideas where i start looking to fix this problem? one mechanic told me that i have to pull the front diff apart, but that didnt make any sense to me, so i am looking for a second (or more) opinion. thanks (it has an electonic shift button on the dash)

 

Well ive had some limited success with this but its worth a try. Press and hold in the 2 hi button while shifting back and forth from neutral to drive. This should knock the t-case free and should hopefully get you into 2hi. Now if it sounds like its not even trying to shift to 2hi (ie no sound from under the truck) the solenoid could be shot. If thats the case take it to a shop that specializes in 4x4's so they wont jack ya around and have them check it out. I havent replaced the solenoid myself but im told its easy to replace and moderately cheap. Hope that provides some help.

 

the front diff has nothing to do with the transfer case being in 4 lo. to get it out of four low you have to remove the electric shift motor from the t-case, and shift the t-case manually. although,I wouldn't suggest doing that if you don't really know what you are doing. also do NOT try to bench test the electric shift motor. it will over travel and will be ruined