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At what speeds and if turning right or left, forward or reverse?
Have you recently replaced any front end suspension or steering parts, tires or wheels?
Did you replace all of these parts trying to fix this problem or did this problem just occur after replacing these parts?
was the front end aligned after replacing those parts?
is it possible to remove the front drive shaft and test drive it and see if the problem goes away or not?
That must mean it's a problem with the 4wd or transfer case.
Let me see if there are any tsb's or troubleshooting tips for that.
I did find one and it does sound like what you are experiencing,
It says, "shudder on acceleration/deceleration, binding in slow speed . turns or noise from the front driveline and/or transfer case."
They are saying it might be the circumference of the tires being not the same.
Now that I think about it, I don't think this tsb applies because they said this happens while in 4wd/awd and you said you are in 2wd.
Let me search some more.
But that tsb did give me an idea. If and when we do put the drive shaft back on but I am not saying to do it right now, disconnect the wiring to the transfer case like they said in that tsb and see if the problem goes away.
This one sounds a little closer,
It says, "Some vehicles may exhibit inadvertent 4X4 Hi or Low shift events, 4X4 and/or Low Range indicator flashing or solid or vehicle stuck in 4L after uncommanded shift. This may be caused by the 4X4 shift motor."
Tsb's usually instruct how to test. I read a little of that last tsb and it does instruct how to test. Let me see if I can find a diagram of the location of that shift motor and a wiring diagram and how to remove it if need be.
here is how to remove it,
The shift motor sense plate, an integral part of the electric shift motor, is used to inform the GEM what mode the transfer case is actually in.
The digital transmission range (DTR) sensor, located on the left side of the transmission, informs the GEM of the transmission gear position.
The 4x4 shift motor relay is a module containing two relays which, under the control of the GEM, shift the transfer case shift motor between the three 4WD modes.
just an explanation of what it is.
First of all, you have to look and see if you have the old style or new style shift motor.
If it has a blue cover, than replace it. If it's a gray cover, follow with that tsb.
You never answered one of my first questions, at what speed does this happen?
I need an actual speed.
It sounds though you are describing what is on page 1, UNCOMMANDED SHIFT TO 4L
Front end binding or hopping while turning.
Bind feel in drivetrain when backing up and/or turning
Start at b. Check mode switch circuits 682
Did you go through that pdf?
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