Idle issue with a 5.2

[ABeefyNoodle]

The truck is a 1997 with the 5.2 engine in it I can't figure out a high idle issue with rpm bounce after touching the gas pedal it will run on its own at 1200-1500rpm but after about 10 minutes of running will just die out. I've checked all vaccum lines there's no leaks anywhere I've sprayed around the intake gasket and no leaks I have already cleaned the throttle body real good and changed the throttle position sensor, idle air control valve, alternator, o2 sensor, battery the only codes that are pulling up are transmission related P1765, P0753, P0743 would those cause the issues I'm having or have any other ideas I can try

 

[greenvan]

I had idle problems too. Took advice from 2 guys on this site that is was the idle air control valve. I tried 3 others, one was of Chinese origin off of e-bay and it was pure junk. After several months I went back to the original one and after giving every thing a thorough cleaning , it idled ok. Sometimes you can get bad advice from this site.