96 K1500 Transmission Issues When Cold

[Shatterz]

Hey All, my 96 K1500 is having some transmission (4l60e) issues when cold. The initial first shift from reverse to drive or drive to reverse results in a about a 2 sec pause accompanied by the engine rpms rising and a rather harsh slam into either gear. And this get worse as the temperatures drop into the cold winter months. Once I get going everything shifts solid without any harshness or signs of a problem. Truck only has 61,000 very well maintained miles on it and never towed anything. Transmission fliud level is correct and fluid & filter was changed (correctly by me) at 45,000 miles. Is something on it's way out and what part of the trans is causing this?

 

Thanks

[ryank1]

Could be an issue with an internal seal, causing a pressure loss untill the unit gets hot and the seal expands.

[Shatterz]

Could be an issue with an internal seal, causing a pressure loss untill the unit gets hot and the seal expands.

 

Hmmmm, could you expand on that a little, what seal are you referring too?

[ryank1]

Unfortunatly it could be any internal seal in the trans.