One problem related to timing tensioner has been reported for the 2007 Ford Fusion. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Ford Fusion based on all problems reported for the 2007 Fusion.
Tensioner pulley disconnects from engine causing the drive belt to come off. This has happened to the referenced vehicle for (4) times since 2008 and at each time said vehicle was in various stages as follows: 1st time was in motion in the middle of an intersection while taking a left turn; 2nd time was in motion in a parking lot right when turning into parking space; 3rd time was prevented when taken to dealership because of a squealing sound coming from the engine when gas pedal was used; and the 4th time it came off when starting the engine while parked in the driveway at my home. Each time it was replaced it was taken to the Ford dealership where it was purchased and each time it has not been fixed properly. At this time there is a squealing sound starting to come from the vehicle when it has been started but diminishes after engine has warmed up. Now I feel it's only a matter of time before the unthinkable will happen. . . . .