View Full Version : 02 Trailblazer 4WD problems
rjoldies
03-29-2006, 11:04 PM
I am a new user so bear with me. I have just purchased a 02 Trailblazer and it is hung in 4LO. There is no light on the 4WD switch located on the dash. It has no effect regardles of wheere I turn this swicth. No sounds of the motor engaging on the transfer case. Any ideas before I take it to the costly GM dealer. Is there a fuse that could possibly be blown?:duh:
TBSSTony
03-30-2006, 09:07 AM
This is the SS forum. Ask a mod to move your question to the appropriate forum and you'll get more help. :yes: ...and Welcome to TrailVoy!
cmadams4
03-30-2006, 10:14 AM
Had a similar problem on my '02... think it is a TSB. Have to take it to a dealership. It is a computer thing, had to replace a module or something like that. Too long ago to remember.
ScarabEpic22
03-30-2006, 09:56 PM
Welcome!
(Please post in the correct section next time, the SS guys dont have 4WD, only AWD and the setups are different.)
But, it is either a 4WD switch issue or a transfer case encoder motor issue. The switch is like $30, but the new encoder motor is $400-500 installed.
Take it to a dealer and see what they say about it.
traumadog
03-30-2006, 11:15 PM
I've had issues where it stuck in 2Hi - and it required a trip to the dealer to replace a blown module. It was under warranty, so I don't know how much it cost, but the symptoms were the same - no lights at the switch and couldn't change modes.
Tommy
03-30-2006, 11:20 PM
<<moved>>
All fixed. :cool:
It definitely sounds like a bad electronic module. This was a frequent issue with 2002s and early 2003s.
Welcome to Trailvoy by the way.
Try shutting the car off and on for a bit till the light comes back on . I had it happen to me before.