strange idle - 87 5.0 LX

[simplyJ]

when sitting in neutral the idle is fine for a minute or two and then it starts becoming a bit erratic and then finally stalls. any ideas?

 

[jrichker]

See "Help me create the Surging Idle Checklist" at http://forums.stangnet.com/showthread.php?t=534062
for help with your idle problems. The first post contains all the updates to the fixes. I continue to update it as more people post fixes or ask questions.