Trouble with the 2-3 shift

[QuadFor4]

2 days ago I took the truck out and had trouble with the 2-3 shift at WOT. There was a 2 second delay between the shift from 2nd to 3rd. During this delay the rpm's fell to about 3000. Once the shift was made The truck took off like a scalded dog. It did not feel like there was any slipping in the trans. Yesterday I went for a drive and at moderate throttle truck doesn't want to shift into 3rd. The rpm's would go to about 4000 before it would shift, or I would have to let off the throttle and re- apply to get it to shift into 3rd.
Trans fluid is burnt. Fluid and filter was changed and bands were adjusted 9000 miles ago. I have had the bands and fluid done at 15000, 30000, and 45000. I have not changed the governor siliniod. Truck has almost 54000 on her now.
I know someone will ask... Automatic Trans.
Thanks for any help!

 

[VENOMOUS1 RACING]

Need to check stored codes in PCM first. Sounds like it could be an input/output shaft speed sensor or it could be in the solenoid pack. Dang 48re's

 

[QuadFor4]

I am not getting any codes, no check engine, no trans light.

 

[505'sFastestViper.]

Gm solenoid from what I heard

 

[VENOMOUS1 RACING]

Understand light isn't on, but cycle key 3 times off/on and see what the odometer shows code wise.

 

[QuadFor4]

Cycled the ignition and checked with the SCT... No codes. I am hoping it is just the siliniod. Trans rebuild would really hurt the budget.

 

[VENOMOUS1 RACING]

Those trannys are usually electrical issues.

 

[QuadFor4]

Thanks for the ideas, fellas. If anyone else has any thoughts about what this issue may be, please chime in. I would like to think I've got an idea of what the problem is before I take it to a trans shop.

 

[QuadFor4]

Keep this threat alive. I would like to hear from some more of you. Has anyone else experienced something similar?

 

[VENOMOUS1 RACING]

Might TRY to adjust the TV cable on throttle body. This cable goes to tranny and does have some input on wot shifts I believe.