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Lost all gears while driving, transfer case?

Posted: Tue Feb 11, 2020 5:36 pm
by coder
While I was driving down the freeway this morning the engine revved up it went into a free spinning state like neutral and I couldn't shift into any gear. I had to coast to the side of the road and call a tow truck.

I can shift through the gears in both the transmission and transfer case but but nothing happens.

I'm thinking it's a transfer case problem, there was no warning signs everything was smooth and quiet, thoughts?

Re: Lost all gears while driving, transfer case?

Posted: Tue Feb 11, 2020 6:04 pm
by Mule
Got jacks/lift? It'd be pretty easy to diagnose the t-case if you can get teh wheels off the ground.
What's the transmission fluid look like?

No codes? Wonder if it's a trans solenoid.

Re: Lost all gears while driving, transfer case?

Posted: Tue Feb 11, 2020 8:04 pm
by coder
Just got the diagnosis the transfer case is fine the transmission pump failed time to get the transmission rebuilt. I have my truck in a reputable shop nearby it should be done late next week.

Re: Lost all gears while driving, transfer case?

Posted: Sun Feb 16, 2020 11:27 am
by cb1987
i was going to say i dont see how it would be the tcase as its all mechanically driven im sure. transmission pump makes perfect sense. about 25yr ago i had the same thing happen to my chevy turbo400.

Re: Lost all gears while driving, transfer case?

Posted: Tue Feb 18, 2020 7:57 pm
by coder
Go the truck back on Saturday. Once they got it apart they found that the seal around the pump was leaking, it had been that way for 2-3 years because it made a very slight whining sound, it finally came out and lost all pressure.

At 185k miles with nothing ever done to it since 2007 when I bought the truck, except for fluid and filter changes, I can't complain.

The transmission is fully rebuilt now I have been driving it for a few days while it goes through the computer relearning process. I've had 3-4 rough downshifts, this is normally I was told to expect it, everything is running smooth and quiet now it shifts great, I'm back on the road again!

Re: Lost all gears while driving, transfer case?

Posted: Tue Feb 18, 2020 11:20 pm
by RustyPW
:rockon:

I've got 90,000 miles on mine now. I was looking at this thread has for things that could go wrong with mine.