We have a Job 1 purchased in Mar 2007 in GA. The 1st Radiator was replaced at 33,000 just over a year later under 36,000 miles warranty in WV. Venturi Tee added a few months later in AL.
Last week, after a couple of months of adding coolant weekly, pressure testing etc, showing no leaking, DH took it in again. NC Ford dealer said it wouldn't be covered under warranty. DH said, you need to call and check on it.
They found it was cavitated behind water pump and leaking on left side of radiator. Besides the new radiator, they also installed a new Venturi tee, new T-stats, new water pump. All were covered at zero dollars under warranty..... Mileage: just over 70,000 miles
We only paid for oil/fuel filter change and rental car. All work is done through Ford dealers, so all records are online for them to verify what we've had done.