Hello,
Quick background on TB. I purchase the trailblazer two months ago as a work vehicle, but starting to enjoy it. I plan on installing a leveling kit and some other tasteful mods.
Trailblazer has 170,000 miles.
Started doing maintenance and repairs(ignition coils,abs module,new speakers,and etc.)Transmission was replaced 10,000 miles ago(have receipt for transmission replacement from a gmc dealer in glove box)and I also checked transfer case oil it looks new and full. I'm not sure but I'm guessing it was change with transmission.
The problem and/or question is with the 4x4 system. Every so often in the morning(not every morning) when I get in to start the truck I would notice the 4x4 switch 2hi is blinking and the neutral light is on. If I move the transmission lever to neutral it will come back to 2hi with a solid light and the red neutral light also turns off with out touching the 4x4 switch. Drives just fine and operate as one should.
The other problem is the 4x4 not engaging all the time. I followed the instructions on this site and this is what I got, however when it does work I can feel the steering wheel get harder to turn and less wheel spin in the snow. I'm in Missouri and just got some snow.
With just the passenger front tire off the ground, I can turn the system from 2hi to 4hi and I'm getting the front 4x4 disconnect to work properly (tire will spin in 2hi and not in 4hi)every time. I can hear the motors on the disconnect and transfor cases working.
The weird thing is the driver side wheel.
At first when lifting the driver side wheel and putting the system in 4hi it spins freely with the front prop shaft to the transfer case also spins, but if I turned the system back to 2hi then back to 4hi a couple of time I might get it to stop spinning . As in the transfer case engaged the clutches and 4x4 will work now.
So is this the encoder motor on the transfer case bad?
I also don't have the 4x4 service light on,however I did check with my obd2 reader and no codes there.
Thanks.
Quick background on TB. I purchase the trailblazer two months ago as a work vehicle, but starting to enjoy it. I plan on installing a leveling kit and some other tasteful mods.
Trailblazer has 170,000 miles.
Started doing maintenance and repairs(ignition coils,abs module,new speakers,and etc.)Transmission was replaced 10,000 miles ago(have receipt for transmission replacement from a gmc dealer in glove box)and I also checked transfer case oil it looks new and full. I'm not sure but I'm guessing it was change with transmission.
The problem and/or question is with the 4x4 system. Every so often in the morning(not every morning) when I get in to start the truck I would notice the 4x4 switch 2hi is blinking and the neutral light is on. If I move the transmission lever to neutral it will come back to 2hi with a solid light and the red neutral light also turns off with out touching the 4x4 switch. Drives just fine and operate as one should.
The other problem is the 4x4 not engaging all the time. I followed the instructions on this site and this is what I got, however when it does work I can feel the steering wheel get harder to turn and less wheel spin in the snow. I'm in Missouri and just got some snow.
With just the passenger front tire off the ground, I can turn the system from 2hi to 4hi and I'm getting the front 4x4 disconnect to work properly (tire will spin in 2hi and not in 4hi)every time. I can hear the motors on the disconnect and transfor cases working.
The weird thing is the driver side wheel.
At first when lifting the driver side wheel and putting the system in 4hi it spins freely with the front prop shaft to the transfer case also spins, but if I turned the system back to 2hi then back to 4hi a couple of time I might get it to stop spinning . As in the transfer case engaged the clutches and 4x4 will work now.
So is this the encoder motor on the transfer case bad?
I also don't have the 4x4 service light on,however I did check with my obd2 reader and no codes there.
Thanks.
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