One problem related to timing tensioner has been reported for the 2006 Ford Mustang. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Ford Mustang based on all problems reported for the 2006 Mustang.
Driving home form a trip I started hearing a slapping/ticking noise form under the hood. Investigated the problen and seems to be coming form timing chain cover/ valve cover area on passenger side. After doigng research on this matter and a mechanic visit it is a timing chain guide/tensioner. Its a costly repair and seems to be a common problem on 05-09 Mustangs form internet research. They use the timing chain cause they should last the life of the car, cause they wont break. I think the guides should also last, but they are made of plastic and can break at anytime. I think this is a ploy by Ford or a defect that needs to be addressed as plastic contained inside of a major car part that can break easily, may cause chain to slip off and shut off engine causing blown engine, or worse while on highway casuing an accident. They should be replaced by stainless or aluminum for strength and better support.