[dante2]

My 94 runs great but has an annoying stumble at idle. It's constant both at startup and sitting at a light on the way home. Any ideas what to start with?

 

[The jeep hulk]

Id check for vacuum leaks. You can do that with many different methods. Since you have a 94 jeep is there any check engine lights on?

 

[dante2]

Just the usual code 12 and 33.

 

[dante2]

Sprayed all the vacuum lines and no change in idle. Any other ideas?

 

[Defcon 1]

Check out the IAC. Sometimes the plunger will get gunked up and mess with the airflow passing around the intake butterfly-valve. Take it off and clean it and the adjacent area, be careful with those little Torx screws!