My 2000 Jimmy vent selector is not working. Temperature control works fine, A/C works, the problem is that it doesn't matter where I turn the vent selector it blows from everywhere at once. Does anyone have any ideas on this? Also my 4 wheel drive is not working as well. I can hear the switch on the transfer case throw, and low range engages but, I have no drive on the front axle.

Mike

Check your vacuum lines and make sure they are not cracked or torn. The climate control vent selector is vacuum controled, along with the 4x4 actuator under the battery. If both are weak then your vacuum line should be looked at carefully.

Found a vacuum line disconnected, and that took care of the 4WD issues.