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The most common cause of these problems is a loose slipping fan belt. For most cars the belt is held tight by a tension-er. This is a pulley that is spring loaded. Usually the tension-er applies the force to the back side of the belt. Tension-er has been known to stick and not flex with the belt allowing the belt to slip. Also if the belt is worn it can slip. Another possibility is that one of the accessories, on the belt circuit are having trouble rotating prohibiting the belt to operate freely. Careful inspection of the belt will determine its condition. With the hood open listen to the motor at idle and the sound of a squeaking belt is an indication that the belt is slipping. To test for the tension-er with the engine off try tapping in the direction of tightening the belt on the tension-er with a rubber mallet. Start the engine and observe if the condition is still the same. If it has corrected the problem than the tension-er either needs to be cleaned or replaced.
Buy new replacement belt. Select correct socket and ratchet handle to move automatic belt tensioner to slacken old belt. Slip off old belt, slip on new belt following correct belt path over all pulleys. Re tension belt with auto tensioner. Drive vehicle, job done!
there are YouTube videos, watch them.....
look for a belt tenshoner pulley, on some they have a place to insert a hex hey or a standard bolt, use a wrachet with a long handle and push the tensioner down away from the belt because its on a loaded spring. while holding the tensioner down with one hand, slip the belt off the pulley. release the tensioner and slip of the belt. When putting on the new belt repeat the same steps; tensior pushed down, slip on the belt release tensioner
Belts squeak for the same reason tires do when they spin. They are slipping. Something isn't turning as fast as the belt wants it to. On ford it's usually ether the idler sprocket or the tensioner. If you remove the belt and try spinning all of the pulleys by hand.( note the crank wont spin freely) you will usually be able to tell witch ones slipping.
Open the hood and locate the belt tensioner. The serpentine belt drive is located on the front of the engine on the passenger side of the engine compartment. The spring-loaded belt tensioner on the 1998 Contour is located slightly to the left of and below the water pump pulley Release the tension on the belt using the serpentine belt removal tool. On vehicles equipped with the 2.5 liter V-6 engine, snap the 3/8 inch-drive adapter onto the removal tool. Slip the tool into the square, 3/8-inch hole in the end of the tensioner arm. Rotate the tensioner clockwise to release the tension. While holding the tensioner back, remove the belt from one of the pulleys. Release the tensioner, remove the belt from the remaining pulleys and pull it out of the engine compartment Snap a13 mm socket adapter into the belt removal tool for the 2.0 liter, four cylinder Contour. Place the tool onto the 13 mm bolt that holds the tensioner pulley to the tensioner arm and rotate the tensioner clockwise. While hold the tensioner back, slip the belt off one of the pulleys. Release the tensioner, slip the belt from the remaining pulleys then remove it from the engine compartment Route the new belt around the pulleys, according to the belt routing guide. The belt routing guide on the 1998 Contour is located on a decal on the left (passenger side) strut tower. If this decal is missing, or unreadable, the belt routing guide can also be found in your service manual. Rotate the tensioner pulley one more turn to allow the new belt to slip under the tensioner pulley. Check the belt for proper alignment on the pulleys. It should lay flat on the pulley and not overhang the edges. If the belt must be repositioned, release the tensioner and reposition as needed.
Most serpentine belts mount so the groved side of the belt wraps around the grouved pulleys and the smooth side wraps against the smooth pulleys (usually the tensioner). When you figure out the path of the belt, then release the tensioner tension and install the belt. then reapply the tensioner tension. Some tensioners are the alternator. Some tension with the Power Steering Pump. But most, nowadays, just have a spring loaded tensioner that can be held in the untensioning position with a socket wrench or open end wrench untill the belt is on then you just let the spring apply the tension to the belt and remove the wrench and you are done. If you have to tension the belt with the alternator or another component in the belt path, the tension usually needs to be such that light pressure (5-10#) on the belt will cause it to deflect no more than an inch over a 10" or so span between pulleys. If when started, it slips then tighten it a little more. Start it up and check for slipping, and repeat the process until it does not slip any more. It is important to make sure that the belt and pulleys do not have grease or oil on them causing the slipping. I can cause premature bearing wear if the belts are too tight.
YOU NEED BELT TENSIONER TOOL OR 3/8 INCH BREAKER BAR PLACE IN THE SQUARE HOLE IN TENSIONER THEN ROTATE BELT TENSIONER COUNTERCLOCKWISE TO RELEASE BELT TENSION SLIP BELT OFF ALTERNATOR.TO GET OFF.SLIP BELT BACK OVER ALTERNATOR WHEN YOU REPLACED WATER PUMP.
There should be a belt tensioner which requires a socket and a ratchet to pull tension off the belt by prying on this tensioner in the opposite direction.. Good Luck
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