Serpentine Belts
Mercury Sable

How do you replace the alternator belt on a Mercury Sable?

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September 12, 2011 8:53PM

Most cars and trucks today have what is called a serpentine belt

which runs most accessories.They are very dependable and usually

easy to replace. To decide if your belt needs replacing, simply

look at the grooved side of the belt to see if it is cracking

badly. A couple of cracks every 3 inches is normal, but if you see

cracks every 1-2 inches I would recommend that you replace it. On

most cars and trucks the procedure is basically the same. First

off, get the correct belt by bringing your cars VIN number to the

parts store(located on your cars dashboard) the parts store may

need it. If there are two choices, get them both so you can

complete the repair. Once you have the correct belt, take a minute

to review how the belt runs across the pulleys and also check to

see if your car/ truck has a underhood diagram of belt routing in

case you need it. In most cases you will need a socket wrench or

breaker bar with either a 3/8" and /or 1/2" head on it and possibly

a short extension. Some models may require a wrench of these

similar sizes.Now that you are ready to go to work, you will need

to find the spring loaded tensioner which is generally located near

the top of the belt path; it usually has a shinny pulley on it.

Look at the tensioner and insert the tool into it and apply

opposing pressure to release the belt.Now, simply install the new

belt making sure it fits into the grooves on all the pulleys. Start

the car to check it and you are done and you saved yourelf some


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