...and how much would it cost? I have a 1995 Buick Century LTD, with a V6 engine, and 105k miles on it. Does the timing belt needs to be change now? What is the estimated repair cost for this service?
That engine in your car, weather a 3.1 3.3 or 3.8, does not have a timing belt, it has a timing chain. The timing chain under basic operation most times will outlast the car and not need replacement.