Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2005 Ford 500 rough start › Reply To: 2005 Ford 500 rough start April 25, 2020 at 3:40 am #954432 Richard KirshyParticipant Cleaning the throttle body is a good suggestion, might also look at cleaning the MAF sensor if so equipped. Both are pretty simple to do and the least expensive.