Does anyone have or know the procedure to air test the clutches in a 4t65e? I built the clutch stack and filled the apply holes with fluid. When I use about 25psi in the apply holes, the input clutch engages fine, and the fourth piston engages fine. Second sounds like it's leaking and does not engage. I actually get air and fluid out of the input apply hole. It also sounds like it's leaking around the shaft. This tranny doesn't have the 4-lobed seals under the 2nd peak seals, and the peak seals are new.
Third also does not engage. It sounds like it's leaking around the shaft, but also puts air and fluid out of the input apply hole. I tried inverting the stack and had the same results. I can't find the actual procedure so I'm not sure if I'm doing it right, or if I have a check ball leaking or what.
The problem with third could be the teflon seals, but they seem to have resized just fine. I can feel the driven sprocket support go over each one as I put it on.
Any help would be greatly appreciated.
