Ranger not idling right, hesitating at stop
I have a 2003 Ford Ranger Auto 3.0 that is acting like it wants to die at a stop light, and when you rev it in neutral, it only goes to around 3000rpm and vibrates badly. I assume that there is a rev limiter, but the vibration is not normal. Could this be the IAC? I have checked the plugs and wires, and tried a tank of different gas and it is still doing this. Any ideas? Thanks in advance!