94 Navajo Transmission Problem

[Hammerman]

I need help figuring out whats wrong with my 94 Navajo.
When the car is cold (first start in the morning) the tranny has problems getting into 1st and 2nd gear. I hit the gas and it's like I'm in neutral. after a few moments it kicks into gear and off we go until I need to slow down then the problem happens again. Once I have driven for 1-2 miles the tranny starts acting fine. It's like a completely different car once the tranny is warmed up. Has anyone had this problem before? I would'nt think the tranny is competely shot if it works when warm.

Thanks,
Michael

 

[ronnie mullins]

If it's an automatic I'd start by changing the fluid and filter,and then I'd check out the modulater valve.