Several times over the weekend my truck will start shaking while idling. It only happens when high idle kicks in. It will shake for 30-45 seconds and smooth right out. Does anyone have any ideas or is this normal?

 

My truck does the same thing form time to time, I don't think its a real problem. It happened once where is was really bad and it never came back.

 

mine just started this 3 days ago..pulled over on the side of the road was runnning fine thought i heard it miss so i got in gave it some throttle and sure enof it just shook at idle and had a miss went away with a minute of driving...started it up next morning did the same thing but was worse almost had trouble starting..thoguth it went away for a day then tonight as i park back at the camp im in i let the truck idle before i shut down and it starts shaking again took the bully dog out and still shakes but goes away with driving...been checkin my oil its not makin oil , im starting to think its in the computer? anyone else find a fix for this?