truck surges on 1994 GMC Sonoma

Truck surges after it get warm,shut it off so it cools down and it's fine until it heats up again.Any help,Russ.

Asked by for the 1994 GMC Sonoma
Sounds like you may have a fuel control issue. I would have a fuel pressure check and check for any vacuum leaks.

All of it is guess work until you have a diagnosis performed.