This is one reason I recommend you take a trip to the Ford parts department for a replacement.
The ford factory belts in my opinion is of much higher quality then let’s say a dayco made in china part. In some case the ford belt may be double the price and worth every penny.
In fact I have had some belt noise issues with the dayco direct replacement for the 4.9l ford. As a professional mechanic you really can't put a price on fixing it right the first time.
Engine belt diagram 4.9l ford
Why check the belt?
If you lost one belt, depending on which one that was, you could still most likely make it to a repair shop without towing the car or truck. But the modern serpentine belt drives all of the accessories and if this belt goes you are most likely calling for a tow.
Belt tensioner 4.9l ford
Some diy car mechanics will use a breaker bar with a long handle to overcome the strength of the belts tensioner.
The thickness and bulk of a breaker bar can be difficult to use on some models. They make a special tool that is much better than a breaker bar.
It is called a serpentine belt tool. In my opinion this is a must-have for do-it-yourself mechanics as well as professionals.
I own one that was made by the Lisle Corporation, and I use it often.
In fact mechanics that I work with asked to borrow it all the time. It makes replacing belts a lot easier, faster and also a lot safer.
Do not underestimate the power of the tensioner spring on a 4.9l ford. And for god sakes wear some eye protection.
The online auto repair home page is up next and is a good place to discover what else is covered on this website.
Additional belt diagrams are covered on the serpentine belts diagram page.
You can also learn more about the professional auto mechanic that thinks it is within reach for most people to perform some auto repairs.