91 6g72 wont idle once warmed up

[HELLPOOLHALL]

Im thinking it IACV. Anyone else run into this issue? Before I start throwing parts at it, I'd be curious if anyone else seen this before.

[geezer101]

Any weird intake noises? Removing and cleaning out the IAC will cost you time and a few bucks. Worth a try. Maybe clean out the throttle butterfly as well...

[HELLPOOLHALL]

I'll spray it down with some starting fluid and see if there is a vacuum leak. Its a back burner project. Ive owned the truck for years. Working on making it turn key reliable again.

[xboxrox]

https://carfromjapan.com/article/car-maintenance/rough-idle-when-warm-troubleshooting/