Question about 1993 Mercury Cougar
First, disconnect the Battery.
Then using a suitable pry bar or 1/2inch drive flex bar, pull the spring loaded idler pulley back, you will see the pulley if you look at your drive belt at the top,closest to you,(looks like an aluminum casting with a steel wheel connected to it. and you will see a small square opening where you place the drive end of your flex bar into.
Once you have rotated the idler pully far enough, you should be able to slip the drive belt off the pully.
Now, look at the rear of the Alternator, you will see a wiring block, maybe three wires coming from it, use a small screw driver to pry back the little locking tab on the plastic wiring connector,,(just as it enters the alternator)and pull the connector out.
If there is any other wires coming from the alternator, just disconnect them(if you have to remove any bolts to do this, make sure you re-connect the nuts back onto the connectors after removing the wire)after you have disconnected the wires,,you should be able to unbolt the alternator from it's support bracket.
P.S. if you do not have strong hands,,it would be wise at this point to ask a friendly neighbor to help you at this time.
After removal of the alternator,take the alternator down to your local parts store and ask them to test it for you(most parts supply stores will do this for No Charge) and if you need another alternator they will take the old one as a rebuildable core and take some money off your bill.
The re-installation is the reverse of the removal, while you are at it, check the condition of the alternator drive belt, if it is worn, or frayed at the sides,,or if you look at the driven surface(this is where you see the grooves) and you notice small cracks,,then you should replace the belt.
You should replace the belt anyway,if you can afford too,,,they are pretty cheap and doing so can save you some heart ache in the furure.
Posted on Jan 16, 2009
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