"Service Engine Soon" light comes on
I have a 2011 Ranger with 22K miles on it and the "Service Engine Soon" has started coming on. The first time was 2 weeks ago after I had filled it up. I called the dealer and was told: 1. Would be a week before they could look at it. 2. Not a big deal unless the engine goes into "limp mode". 3. Run a full tank thru it and see if it goes out.
It went out. I have run 2 tanks thru it and the light didn't come on until Monday when I filled it up. I am using Tier 3 gas(QT). I am confused+concerned.
Any ideas would be appreciated.
Thanks for your help,