One problem related to loud engine noise has been reported for the 2007 Ford Explorer Sport Trac. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Ford Explorer Sport Trac based on all problems reported for the 2007 Explorer Sport Trac.
I noticed while driving my 2007 Ford explorer sport trac that something was wrong with the engine. I thought it might be the transmission, because when accelerated it would become sluggish and make a loud roaring noise. The temperature light came on for about 8 seconds and the temperature gauge went to the top for about the same amount of time. Then the light went off and the gauge went back to normal. Then engine sound and speed appeared to be normal.