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Old January 19th, 2009, 06:23 PM   #1
bigblockford79
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Default 2003 Ranger Tcase Issues???

I have a 2003 Ranger FX4 Level II that I believe has a bad tcase. When I shift into 4wd everything seems to work properly and all 4 tires will spin. The problem is when I accelerate a little harder there is a loud pop from under the truck and the front tires are no longer spinning. I had a friend put it in gear and hold the brakes while pushing the gas pedal. From what I could see is once the front driveline gets to a certain level of torque it seems the chain in the tcase starts jumping teeth on the front output. After it pops, if you keep on the gas a little longer all it does it ratchet inside the tcase. The rear driveshaft will still be under load but the front is just sort of twitching.

What do you think the issue is? Dirty shift motor, or stretched chain/stripped sprocket?

Thanks

PS it is a BW 1354 Electric
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Old January 21st, 2009, 11:57 AM   #2
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What front hubs do you have?

When the t-case is twitching is the shaft and the front wheels doing the same?

Usually when the shift motor fails it just wont go into 4wd.Its from a limiting bushing inside breaking and letting the motor move out of its range.Those are an easy fix but dont sound like your problem.
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Old January 21st, 2009, 06:49 PM   #3
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Originally Posted by deathbypsi View Post
What front hubs do you have?

When the t-case is twitching is the shaft and the front wheels doing the same?

Usually when the shift motor fails it just wont go into 4wd.Its from a limiting bushing inside breaking and letting the motor move out of its range.Those are an easy fix but dont sound like your problem.
No front hubs, it has a fulltime front axles with unit bearing assy's.

I am pretty sure the chain is stretched and the sprocket on the front output is toast. Was just looking for other possibilities since I am new to electric tcase.

Give me a NP208 or NP205 and thats no prob, have had both apart and rebuilt. But this E-shift BS you never know what switch, motor, or sensor could be messing up.
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Old January 21st, 2009, 07:19 PM   #4
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