One problem related to timing tensioner has been reported for the 2007 Ford Explorer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Ford Explorer based on all problems reported for the 2007 Explorer.
Harmonic balancer is bad on a lot of Ford Explorers. My girlfriend and I just purchased a 2007 Ford Explorer and didn't have any problems at all. A couple weeks ago we notice a loud squealing noise coming from the engine compartment. First thought it was a fan belt needing replaced. Replaced that its got worse. After doing some research I found out a lot of Ford customers are having problems with this issue. All the videos and forum searches leads to the harmonic balancer. These things go bad and causes more problems within the pulley belt system, even engine failure. I'm only making this complaint because Ford hasn't made any adjustments or attempt to put out a recall on this issue and its the purpose of engine failure in a lot of Ford Explorers, expeditions, etc. The squeal occurs when the vehicle is stationary and in motion. It stops periodically, but starts up again at take off from stops and its constant when driving causing the vehicle to have a feel of lost of power. Alot of the customers are dealing with this issue themselves. Some doesn't make it to getting it fixed because shops saying its a belt and never get the real problem fixed. Ford needs to take responsibility for a mechanical part that basically runs the vehicle. Bad harmonic balancer or damage balancer equals worn belts, bad belt tensioner, and damage to engine life itself and need to resolved.