Is your rear axle making noise? Bunged up gears? With the wheels off the ground, can you turn them with the drive shaft? Does the transmission go through it's gears with the DS off? Shoes in the parking brake stuck?

 

No noise coming from anywhere. If you run through the transfer case gears, if you go slow from N to 2W or N to 4LO it clicks like it's trying to engage. DS will spin with wheels when off the ground. Transmission will shift through all gears with DS off. And parking brake isn't stuck, the truck will roll if pushed.

 

Can you manually shift the transfercase from under the truck? I'd take the linkage off first so it positively goes into the TC gear. The rear axle spins, and the transmission has pressure and is shifting. It's something in the transfer case from my point of view.

 

Ok, in P put some big pliers on the output spline (or disconnect d/s at rear yoke and cram a big screwdriver in u-joint) and you should NOT be able to spin the d/s or t-case output.

If you can, the t-case is in N, assuming the park pawl is functioning.

I guess a much simpler test would just be trying to force the truck to move in P with everything hooked up. If P holds you, the t-case range fork is in low or high (we don't particularly care if the mode fork is ok for the EXACT purposes of this problem)

 

OK, it's not stuck in neutral. And i checked all pressure ports again and have no pressure on any of the test ports. Pulled the "to cooler" line and got a little flow, but not much at all.

 

Air tested clutches and servo pistons and they're all working fine, no air leaks. Everything is new and the pump was replaced as well. Reman torque converter. Only thing I didn't replace was the TCC solenoid.

 

If you aren't getting any pressure, and very little flow to the cooler, your pump is not working..... It may be a bad pump, or it may be just sucking air.....

 

Thanks bud! Well, I have another pump, so I guess I'll be dropping it again and replacing the pump. Hopefully that fixes the issue. I ordered a supposedly good used pump from Global, guess it wasn't good, lol.

 

Used???? Hhhmmm.... For an auto trans, I think I would spring the cash, and get a new one for my fresh rebuild.....

 

Who sells a new one? Everything I have found online is refurbished and that was what I got from Global Transmission Parts out of Ohio, a refurbished pump and housing.