Question about 2002 Chevrolet TrailBlazer
Changed the actuator, checked the fuses
We had this same problem n a Sonoma pu.we had to hook up a manual control on the cable that goes to the actuator,it was a simple bolt and nut system that u pull out and tighten with the nut ,it works and your inside controls still disingage the transfer case.
Posted on Dec 11, 2014
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Posted on Jan 02, 2017
The vacuum switch on the transfercase is most likely the problem. If you remove it and the plunger is stuck in, replace it and your 4wd should engage again.
Posted on Oct 05, 2009
You probably have a bad encoder motor.It is located on the side of the transfer case on the drivers side.It is black.The other problem they had with these was the switch but you have already replaced this so your next thing is the encoder motor.Hope this helps.Good luck.
Posted on Dec 28, 2009
Try jacking up one side of the front and putting it on a jackstand. Then turn key on(but dont start it) and put it in 4hi. Try to spin the tire in the air. The drive shaft should not turn nor the wheel. If the wheel does then maybe the acuator is not moving in the axle. It worked when you pulled it out but it might be hanging up on something in the axle.
Posted on Dec 31, 2009
When you turn right - you're taking weight off the right wheel.
If the noise dissipates - the passenger side wheel bearing is most likely to blame.
Posted on Jan 06, 2010
Testimonial: "thanks, wish we would have known that before my husband spent 3 hours on it yesterday..it does make sense tho..thank you VERY much for your help"
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