SOURCE: jimmy wont lock in four wheel drive.
You need to see if the transfer case engagement motor is defective.
SOURCE: unable to shift from 2hi to 4hi in 1999 gmc jimmy slt 4x4
do the lights work on selector buttons if so check actuator on transfer case may be bad or replace selector switch i just did and my four wheel drive works sometimes
SOURCE: My 98 chevy blazer won't shift into 4wd.
Most common problem is the vacuum diaphragm that is so inconviently mounted UNDER the battery tray.The cable that locks in the front diff is attached to it and vacuum pulls it in/out.
SOURCE: 2000 gmc yukon xl 4x4 wont engage
see my posting re this at my name: rlf107. $115 in parts and labor solved for me, on a 2000 Yukon XL
298 views
Usually answered in minutes!
×