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  #1  
Old 10-15-2009, 01:39 PM
Douglamt Douglamt is offline
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Default Scary problem w/ 4 x4. HELP!

I just acquired my grandfather's 2004 Off-Road Supercab 4 x 4 Ranger XLT (5 spd auto, 4.0L, V6). It only has 30,000 miles on it. Occassionally, while I drive it between 40-50 mphs in a straight line the 4 low light will turn on for no reason and the truck will jump and buck, rev up, and drop from about 45 mphs to 20 mphs. It seems like the 4 low engages for no reason. Anyone ever heard about something like this? Clearly not the 4 x 4 mod, as I've already replaced that. Any suggestions? Thanks.
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  #2  
Old 10-15-2009, 01:44 PM
Fx4wannabe01 Fx4wannabe01 is offline
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I have never heard of this issue ever before.


First unplug the transfer case shift motor and go drive it.
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Old 10-15-2009, 02:12 PM
Douglamt Douglamt is offline
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The problem is that its happened about 3 times over the course of 3 months. I can't recreate it, it just happens once a month or so randomly.
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Old 10-16-2009, 07:05 AM
Clem Clem is offline
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There are so many things that could cause the problem.
The sensor on the transfer case, a short in the system, the 4x4 shift knob, ?.
I would think it has to have power to shift though, so no fuse no power.
If it does it without the fuse, replace the transfer case, but I think it will come down to an electrical problem.
I have never heard of such a thing though.
That says a lot for manual transfer case, huh?
You have to work to get mine into or out of low range, it is going to become a manual when I get another 1354m and the time to do the job.

Ray
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Old 10-16-2009, 11:35 AM
Douglamt Douglamt is offline
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Thanks Clem and Fx4wannbe for your input. I spoke with someone the other day who thought it could even be the result of a defective transmission. Anyway the transmission could have anything to do with it dropping into 4 low while driving? Any comments are greatly appreciated.
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Old 10-16-2009, 11:42 AM
Jay FX4 Jay FX4 is offline
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Does everything work properly when you're trying to engage 4 Hi and 4 low?
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Old 10-19-2009, 06:13 AM
Douglamt Douglamt is offline
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Usually the 4 high and low will initiate (intentionally) w/o a problem. However, the truck has become stuck in 4 low before that caused it to buck really bad.
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  #8  
Old 10-19-2009, 02:42 PM
chainfire chainfire is offline
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my guess is that it is something to do with your shift motor on your Tcase.
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