Hi All: I recently posted an issue about my brothers leased 2003 Jeep Cheroke. Apparently this vehicle has left him stranded twice due to bucking at highway speeds. The vehicle was towed to a dealer in Western MA (he was on his way to Albany) and they told him that excessive heat caused a code 3 to appear in the computer. Something to do with excessive heta in one or two cylibders? Sound fishy to me. They installed some sort of heat shield. Anyone ever have experience like this? Robert