CAN SOMEONE HELP WITH THIS. I OWN A F-250 LIGHT DUTY TRUCK..I SEEM TO BE HAVING IDLEING PROBLEMS EVERY NOW AND AGAIN..WHEN I STOP THE ENGINE SEEMS TO RUN RUFF AT TIMES AND SMOOTH OUT ONCE I HIT THE GAS. I'M WANT TO RULE OUT THINGS ONE BY ONE STARTING FROM THE CAT BACK TO THE TAIL PIPES. NO CHECK ENGINE LIGHT OR ANYTHING. SO I DONT WANT TO SPEND THE MONEY TO HAVE IT TAKEN TO THE SHOP IF I CAN FIX THE PROBLEM MYSELF.....PLEASE HELP ME

 

Gas or diesel?

 

Check your belt and pulleys