I have a 2003 Dodge Ram 1500 2wd with 52000 miles. It has began shutting off here and there approx. 4 times in the last month while ideling or slowing down. It has also been leaking coolant from the cap of the coolant fill above the radiator but not running hot. Any ideas as to what it wrong? Please help. I just bought this truck from a Dealer used about a month ago. It has a 2 year 100,000 mile warranty on Engine and Transmission but if it is not either of them I will be paying the bill.