Sorry about the repost... someone sent me an e-mail asking for more info
on exactly what is wrong with the Jimmy, and when I replied the e-mail
bounced back as a bad address.
Our 4.3L V6 Jimmy will not go into 4WD, a problem we discovered after
having the auto tranny rebuilt. The mechanic checked the switch and
electric & vacuum lines & everything tested ok. He said the transfer
case was getting the signal from the switch but that's it. Neither he
nor the tranny shop who did the rebuild could find out what's wrong. The
mechanic used an Alldata printout to troubleshoot if that helps.
The switch shows 2wd all the time, even when 4wd is pushed. This has
been our experience; the mechanic said at one point all the indicator
lights were on, which has prompted him to swap in a new switch. Did the
The mechanic & tranny shop are stumped, they think it might be one of
the electronic controls (I am so clueless about 4wd mechanics it's not
Thanks in advance!