Transmission help.

[Jon12]

2000 Tahoe with 5.3. When Shifting from 2nd to 3rd gear the engine revs up in the middle of the shift. Could this be the solenoid? It doesn’t usually do it at slower speeds.

 

[fig865]

2000 Tahoe with 5.3. When Shifting from 2nd to 3rd gear the engine revs up in the middle of the shift. Could this be the solenoid? It doesn’t usually do it at slower speeds.

I have the same thing on my 03. I just heard about a solenoid swap where guys are using one out of a Vette. I haven't found anything about it yet. Anyone heard of doing that?