Originally Posted by Holaday
No Idling. Just start it up and drive. Truck will coast no problem so I have now ruled out brake drag or similar issues. I have replaced the air filter regularily when I had it tuned up the mechanic said the air filter was fine. I guess I might have to have a dealer check it. I'm not getting any service engine light or anything like that. Maybe O2 senser or something like that.
o2 sensor is the place I'd go