Problem going to 4LO

[GTKrockeTT]

So, looked to take our new 07 V8 4WD T4R off highway, and upon arrival, I shifted to neutral, and switched from 4HI to 4LO. At this point, the 4LO indicator was flashing. As I shifted from neutral to drive, it continue flashing, but was also now beeping. It did not go away, even after driving for a bit. We cycled through all drives, including reverse.

At this point, we shifted back to neutral, and switched back to 4HI. Drove around a bit, and then shut the engine off. After starting her up again, we tried going into 4LO again on a coulpe attempts. The first one, as soon as we switched to the 4LO, this indicator, as well as the Diff began flashing, but no beeping even after we shifted to drive. They would not stop flashing even when we switched back to 4HI. So, we turned off the ignition again.

Upon restarting, the 4LO/Diff indicators were gone, so we attempted 4LO again, and this time it wouldn't beep, but once in gear, it sounded as if it was grinding. We immediately shifted back to neutral and switched to 4HI. Called it a day, and drove 60+ miles home.

This is on a T4R with less than 1K miles, and was the first attempt we made in going to 4LO. Taking her in for warranty inspection/repair, but any ideas what might be causing this?

 

[nserpa9248]

may be a dumb question, but are you stopping the vehicle first?

Also, if you read your owners manual, it will be clearly described in there...

200th post..woot

 

[JB.]

...I shifted to neutral, and switched from 4HI to 4LO. At this point, the 4LO indicator was flashing. As I shifted from neutral to drive, it continue flashing, but was also now beeping...

Vehicle stopped in neutral. Wait for light to quit flashing. The beeping was because you tried to continue without it completing the shift into low. Hopefully nothing is wrong and it will simply serve as incentive to get acquainted with the manual.

 

[GTKrockeTT]

Re: Re: Problem going to 4LO

Vehicle stopped in neutral. Wait for light to quit flashing. The beeping was because you tried to continue without it completing the shift into low. Hopefully nothing is wrong and it will simply serve as incentive to get acquainted with the manual.

vehicle was stopped in neutral prior to the 4hi > 4lo switch. we let the light flash for a couple minutes on one attempt before shifting into drive.

 

[JB.]

Re: Re: Re: Problem going to 4LO

vehicle was stopped in neutral prior to the 4hi > 4lo switch. we let the light flash for a couple minutes on one attempt before shifting into drive.

Sounds like you've got a problem. Shouldn't take more than two or three seconds.

 

[rromanov]

I have a similar problem with 2003 4R -- took it to the official dealer here in Moscow, they diagnosed a faulty transfer case actuator -- apparently damage may be caused to it if you do something to the ECU without disconnecting the battery. Now trying to figure out where I can get this fixed, will keep posted if I find out anything.

Did your problem get resolved btw? What was it?

 

[GTKrockeTT]

I have a similar problem with 2003 4R -- took it to the official dealer here in Moscow, they diagnosed a faulty transfer case actuator -- apparently damage may be caused to it if you do something to the ECU without disconnecting the battery. Now trying to figure out where I can get this fixed, will keep posted if I find out anything.

Did your problem get resolved btw? What was it?

they ended up replacing the entire transfer case. appears to be fine now.