Delay from P to D and R to D?

[bmfox]

Well Guys and Gals, the truck has 228,000 on it. The trans has about 160,000 on it or so. The problem started about Summer time last year. I would get a delay in the trans engagement from Reverse to Drive and from Park to Drive. It does not do it all the time. More often if the truck has been idling at a fuel stop or so. First drive in the morning, it goes in fine. Sometime the delay is 2 seconds, sometimes up to 5 seconds or so. It shifts fine going down the road and cruising threw the gears. Any ideas. The filter and fluid was changed this time, last year. Only about 16,000 miles on fluid/filter. It doesnt smell burnt. I might drain and refill and change filter again to see if it helps.

I do pull a 10,000lb fifth wheel and a 18ft lawn trailer a lot.

[FordNutz]

It sounds like the seals are a little tired and maybe the pump gears have a little too much clearance. New fluid might help a little. Ive said this before, a good way to tell the hydraulic integrity is to pressure test it.