TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO DIESEL. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 40 MPH, THE VEHICLE WOULD OVERHEAT. THE FAILURE WOULD ONLY OCCUR WHEN TRAVELING ON FLAT ROAD SURFACES, UPHILL OR WHEN PULLING A TRAILER. THE CONTACT WOULD SHUT OFF THE ENGINE UNTIL THE ENGINE WAS COOLED IN ORDER TO DRIVE THE VEHICLE ANY FURTHER. IN ADDITION, THE CONTACT STATED IF HE WOULD DRIVE WHILE THE VEHICLE WAS RUNNING HOT, IT WOULD STALL. THE DEALER ADVISED THE VEHICLE WAS NOT UNDER RECALL AND REPAIRS WOULD BE AT THE EXPENSE OF THE OWNER. THE APPROXIMATE CURRENT MILEAGE IS 143,000. UPDATED 06/29/10 *BF THE CONSUMER STATED THE VEHICLE OVERHEATED WHEN TOWING A TRAILER ON A LONG GRADE HILL. UPDATED 07/06/10.*JB