Question about Buick LeSabre

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We are replacing the alternator and the belt is way too slack. We can't figure out the tensioner and how it works. We can't find a diagram for how the belt is supposed to go.

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  • gambiagirl Jul 19, 2009

    Somehow my son figured it out. The 1998 Buick LeSabre was working. I drove it awhile, but when I turned it off it would not start again. When I took in the old alternator it was definitely broken, but it looks like there is something else draining the battery. It was a brand new battery. Any ideas??? Starter???
    I'm planning on taking it (It will start on a jump from my van) to Pep Boys or some such place that will do a diagnostic of the electrical system. Is that a good idea? It has 106,000 Miles.

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There is usually a diagram right where the hood latches down on this car, maybe a little to the side. It will be a white sticker. What year is this car? Is it an automatic tensioner and you just missed a pulley? The year would help figure this out. Let me know what you find.


Benjamin

Posted on Jul 18, 2009

  • Benjamin Patri
    Benjamin Patri Jul 19, 2009

    Is it possible that you hooked up some of the wires on the alternator
    reversed (probably not unless you may have had to rewire it). An alternator has to be "exited" meaning that you need to put
    a little power in to it to get alot of power back out of it. If one of
    the wires you hooked to it was a "constant hot" (on all the time) and
    not a "keyed hot" (on with the key) the alternator itself can drain the
    battery.

    If you are sure this could not be it you're going to need to
    put a multimeter on the battery and pull and replace one fuse at a time
    until you find the drain. (It will stop drawing when you pull the right
    fuse) Be careful because the clock/radio is a constant drain but a very
    small one. Save that fuse for the very last. Otherwise you can take it to a place to have it checked if you want.






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2 Answers

How to replace alternator belt


Find the belt tensioner bolt and loosen it. There will probably be two other bolts that need to be loosened (just loosened not removed). Move the alternator to its " most slack position" pull the old belt off anf fit the new one. Push the alternator with a broomstick or something similar to tension the belt. (Be sure to push against a solid part of the alternator or you could break it) tighten the tensioner bolt. the tension should be set so that you can push the belt in about 20mm between the pullies with your finger. If the new belt squeels when you start the car the belt is too loose. Tighten the other two mounting bolts.
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1995 Pontiac Grand Am, Quad 4


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Need belt routing diagram for 2001 chrysler sebring lxi


Thanks for using FixYa.




jturcotte_2444.gif

Fig. Accessory drive belt routing-2.7L engine
Chrysler Cirrus & Sebring Convertible; Dodge Stratus; Plymouth Breeze



jturcotte_2445.gif

Fig. Accessory drive belt routing-Chrysler 2.7L engine





2.7L Engine
A/C & Alternator Belt

  1. Raise and safely support the vehicle.
  2. Remove the right front wheel and belt splash shield.
  3. Loosen tensioner locking bolt and pivot bolt.
  4. Rotate tensioner clockwise to allow enough slack to remove belt

To install:
  1. Install the air conditioning compressor/alternator belt on pulleys, tensioner in slack position, slip belt over idler last.
  2. Adjust drive belt tension.
  3. Install the belt splash shield and right front wheel.
  4. Lower vehicle.
    jturcotte_2446.gif

    Fig. Installing A/C & alternator belt-2.7L engine


  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Raise and safely support the vehicle.
  3. Remove the right front wheel and belt splash shield.
  4. Loosen the tensioner locking bolt and pivot bolt.
  5. Rotate tensioner clockwise to allow enough slack to remove the belt

To install:
  1. With the tensioner in a slack position, install the Air Conditioning (A/C) compressor/alternator belt on the pulleys. Slip the belt over the idler last.
  2. Adjust the drive belt tension.
  3. Install the belt splash shield and right front wheel. Tighten the wheel lug nuts to 100 ft. lbs. (136 Nm).
  4. Lower the vehicle.

Power Steering Belt
  1. Raise and safely support the vehicle.
  2. Remove the right front wheel and belt splash shield.
  3. Remove the air conditioning compressor/alternator belt.
  4. Loosen belt adjusting bolt. It is not necessary to loosen the pivot bolt on the power steering pump. There is a bushing incorporated into the power steering pump/bracket that allows it to pivot.
  5. Remove the power steering belt.

To install:
  1. Install the power steering belt on pulleys.
  2. Adjust drive belt tension.
  3. Install the air conditioning compressor/alternator belt.
  4. Install the belt splash shield and right front wheel.
  5. Lower vehicle.


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You would probalby have to adjust one of the pulleys or you probably have the wrong size belt.

Feb 25, 2011 | Dodge Intrepid Cars & Trucks

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How do I replace the alternator


Hello, Alternators are a car part that can be very costly to fix because of labor costs. But with an hour or two of time and a little elbow grease, you can do it yourself. And to replace the alternator follow the following steps below:

Step 1. Pull your car into the garage or your work area. Turn the car off and let it sit for a while to cool.

Step 2. Begin by disconnecting the negative cable of the battery.

Step 3. Remove the serpentine belt from the pulley on the alternator. Do this by using a socket wrench to turn the serpentine automatic belt tensioner so that it allows slack in the belt. Then simply slip the belt off the alternator pulley.

Step 4. Locate and disconnect all the mounting bolts on the alternator, use a vehicle specific manual if you have any trouble.

Step 5. Disconnect all wires attached to the alternator then remove the alternator from the car.

INSTALLING NEW ALTERNATOR.

Step 1. Slide the new alternator into place. Do not worry about the serpentine belt yet.

Step 2. Replace the bolts that held the previous alternator to secure the new one in place.

Step 3. Attach the wires to the new alternator the same way they were attached to the old one.

Step 4. Adjust the serpentine belt tensioner the same direction you did in Section One to put slack in the belt. Wrap the belt around the pulley of the new alternator and then remove the socket wrench from the automatic belt tensioner.

Step 5. Inspect the belt to be sure it is not snug and follows the path required in the pulley and belt configuration diagram.

Step 6. Hook the negative battery wire back to the negative terminal on the battery.

Thanks






























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2 Answers

I HAVE A BAD ALTERNATOR AND KNOW i HAVE TO TAKE IT OFF AND REPLACE IT WHERE DO i START.


Removing the Old Alternator Step1 Pull your Mazda into the garage or your work area. Turn the car off and let it sit for a while to cool. Step2 Begin by disconnecting the negative cable of the battery. Step3 Remove the serpentine belt from the pulley on the alternator. Do this by using a socket wrench to turn the serpentine automatic belt tensioner so that it allows slack in the belt. Then simply slip the belt off the alternator pulley. Step4 Locate and disconnect all the mounting bolts on the alternator, use a vehicle specific manual if you have any trouble. Step5 Disconnect all wires attached to the alternator then remove the alternator from the Mazda. Installing the New Alternator Step1 Slide the new alternator into place. Do not worry about the serpentine belt yet. Step2 Replace the bolts that held the previous alternator to secure the new one in place. Step3 Attach the wires to the new alternator the same way they were attached to the old one. Step4 Adjust the serpentine belt tensioner the same direction you did in Section One to put slack in the belt. Wrap the belt around the pulley of the new alternator and then remove the socket wrench from the automatic belt tensioner. Step5 Inspect the belt to be sure it is not snug and follows the path required in the pulley and belt configuration diagram. Step6 Hook the negative battery wire back to the negative terminal on the battery.

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Diagram for alternator/pulley belt.


If the Tensioner will not Tighten the Belt, It will be one of two Things. Either the Belt is too Long or the Tensioner is Bad and needs to be Replaced. Please Rate My Response! Thanks!

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Loosen the serpintine belt on 95 buick lesabre


I'm sure you got it figured out by now, but I just did this today. the belt can be given slack by placing a ratchet on the belt tension pulley (the smaller one located to the left of the alternator) and applying counterclockwise pressure. This will give you enough slack to remove the belt. It is helpful to draw a little diagram of the belt configuration, so when you put on the new one, you get all the directions right.

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2.0L Engines
See Figures 11, 12 and 13
The accessory drive belt for 2.0L engines has no provision for manual belt adjustment, since these engines use an automatic belt tensioner. Drive belt slack is taken up by the automatic tensioner.
Movement of the automatic tensioner assembly during engine operation is not a sign of a malfunctioning tensioner. This movement is the tensioner self-adjusting and is required to maintain constant belt tension.
The belt tensioner has a belt length indicator. If the indicator marks are not between the MIN and MAX marks, the belt must be replaced.
0900c1528008d836.jpgFig. 11: Drive belt routing-2.0L SOHC engine with A/C 0900c1528008d837.jpgFig. 12: Drive belt routing-2.0L SOHC engine without A/C 0900c1528008d838.jpgFig. 13: Drive belt routing-2.0L DOHC engine

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2.0L Engines
See Figures 11, 12 and 13
The accessory drive belt for 2.0L engines has no provision for manual belt adjustment, since these engines use an automatic belt tensioner. Drive belt slack is taken up by the automatic tensioner.
Movement of the automatic tensioner assembly during engine operation is not a sign of a malfunctioning tensioner. This movement is the tensioner self-adjusting and is required to maintain constant belt tension.
The belt tensioner has a belt length indicator. If the indicator marks are not between the MIN and MAX marks, the belt must be replaced.
0900c1528008d836.jpgFig. 11: Drive belt routing-2.0L SOHC engine with A/C 0900c1528008d837.jpgFig. 12: Drive belt routing-2.0L SOHC engine without A/C 0900c1528008d838.jpgFig. 13: Drive belt routing-2.0L DOHC engine

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