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Posted on Mar 16, 2009

Serpentine belt replacement.

How do I release the tension of the serpentine belt to get the new one on?

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  • Posted on Mar 16, 2009
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Locate the automatic belt tensioner, it should have a black plastic pulley on it. Insert a 1/2 inch breaker bar in the hole thats on the tensioner, and pull to relieve the tension on the belt. Slip old belt off the pulley and slowly release the force you have on the bar untill it stops moving. Route new belt, and move tensioner with bar to gain needed slack to get the belt on, Release tension, and remove bar. makeing sure new belt is in alignment.
Be careful...watch for pinch points, around your fingers and hands when performing this job.
Also, check the pulleys and idlers for wear before installing the new belt. They will wobble if the bearings are worn and should be replaced.
Good luck, hope this helps.

5 Related Answers

Anonymous

  • 1498 Answers
  • Posted on Dec 14, 2008

SOURCE: serpentine belt

Hi there weekie,

Simple and easy. Really.

  • Get a 14mm or 9/16" socket and a long handled ratchet or breaker bar.
  • The tensioner pulley is on a spring loaded arm. Get your socket on the center nut of this pulley.
  • Slowly pull the ratchet toward the center of the engine. The pulley will pivot on the arm allowing you to get the belt off.
  • Slowly release the tension.
  • You're done
Mike

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Anonymous

  • 958 Answers
  • Posted on Sep 08, 2008

SOURCE: serpentine belt

the belt is being pulled by a spring loaded pulley. this pulley could be lift by using an exact box wrench that would fit at the front nut and turn the wrench to the left. the pulley would then raise and you can slide the belt off the pulley. be careful when releasing the pulley because the tension is really big.

another precaution also is to remember where the belt loops on the pulleys. it is very hard if you don't take a note on that. there are a lot of combination but only one will work.

tnx 4 using fixya.

drcool

Anonymous

  • 149 Answers
  • Posted on Oct 27, 2008

SOURCE: serpentine belt

you need a 3/8 drive socket wrench put it in the tensioner square and pull it it should free the belt or if you have one with a socket just put a socket on the 3/8 drive..do not remove the bolt thats attached to the engine you will spring the tensioner and it will no longer work..u want to use the pully that the belt is actually on

Nick DelRegno

  • 49 Answers
  • Posted on Jan 25, 2009

SOURCE: how to release tension on 1995 chevy 5.7L serpentine belt

Look at the diagram which should be on the radiator fan shroud.  This will show you the path the belt takes around the myriad pulleys on the engine.  There is a tensioner pulley whose only job is to maintain the tension of the serpentine belt.  It may be marked on the diagram.  If not, it is the pulley, usually near the top of the engine, that is not the air compressor, alternator, water pump, etc.  I have found that a box-end wrench or a socket wrench which fits the bolt on the pulley, is sufficient.  Just gently swing the pulley away from the belt slightly.  Just enough to release the tension so you can slide the belt off.  You don't have to worry about the bolt coming loose, as it should have far more torque holding it on than you'll put on it to release the belt tension.  Note, that once the belt is off, the tensioner will swing further than it was before, since the belt is not there to stop it.  So when you put the belt back on, you'll have to swing it back down/up to the same position it is in now, if not farther, since the new belt hasn't stretched.

Anonymous

  • 1990 Answers
  • Posted on Feb 04, 2009

SOURCE: 2003 New Beetle Serpentine Belt Replacement

http://www.mvreader.com/multiview/dayco/catalogSearch.php?autoCatalogSearch=1&make=VOLKSWAGEN&model=BEETLE&year=2003&year_from=&year_to=&engine=All&l=n

This should help. Please Rate My Response! Thanks!

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Serpentine belt

Application:
With A/C


2.image

Kia_Sedona_2002-2006
Accessory Drive Belts

Print


Accessory Belt Routing



0996b43f802319a9.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Accessory serpentine belt routing-3.5L engine


0996b43f802319a9.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Accessory serpentine belt routing-3.5L engine


0996b43f8020700d.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Accessory serpentine belt (A) routing-3.8L engine


Inspection

Inspect the drive belt for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. All worn or damaged drive belts should be replaced immediately.


Removal & Installation

  1. Disconnect the negative battery cable.
  2. Rotate the auto tensioner clockwise to release tension, then remove the drive belt.

To install:
  1. Install drive belt (A). Route the belt over the components in the following order: Crankshaft pulley - A/C pulley - idler pulley - generator pulley - water pump pulley - P/S pump pulley - tensioner pulley.
  2. Rotate auto tensioner arm in the counter-clockwise moving auto tensioner pulley bolt with wrench.
  3. After putting belt on auto tensioner pulley, release the auto tensioner pulley slowly.

    0996b43f802319a9.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Accessory serpentine belt routing-3.5L engine


    0996b43f8020700d.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Accessory serpentine belt (A) routing-3.8L engine


4helpful
1answer

How simple is it to change a alternator belt on subaru svx?

  1. Removing the Serpentine Belt
    • 1 Park your Subaru on a level surface and open the hood.
    • 2 Disconnect the ground (black) battery cable using a wrench. This will prevent the cooling fan from activating.
    • 3 Locate the serpentine belt routing diagram in your engine compartment and compare it to the actual routing of the installed belt. Make sure the routing on the label matches the actual routing. If they do not match or there is no label, note the actual routing on a piece of paper for later reference.
    • 4 Locate the belt tensioner pulley on your Subaru model. If the tensioner is equipped with a squared hole, use a large breaker bar with a 1/2-inch (13 mm) drive. Otherwise, use a ratchet and socket of the proper size on the tensioner pulley center bolt.
    • 5 Rotate the tensioner pulley away from the belt to release the belt tension.
    • 6 Pull the belt off of one of the pulleys and slowly release the tensioner pulley back into position. Do not let the tensioner pulley snap back or you may damage an internal component.
    • 7 Finish removing the serpentine belt from the rest of the pulleys and the engine compartment.
    Installing the New Serpentine Belt
    • 1 Match the old belt to the new one and make sure they are of the same length and configuration. It is normal for the new belt to be slightly shorter since the old one has been stretched through use.
    • 2 Route the new serpentine belt through all of the pulleys except the tensioner pulley. Use the diagram on the engine compartment or your notes, as a reference, to properly route the belt.
    • 3 Insert the large breaker bar into the square hole or the ratchet and socket into the tensioner pulley center bolt.
    • 4 Rotate the tensioner pulley in the same direction you did to release the belt tension.
    • 5 Slide the serpentine belt onto the tensioner pulley.
    • 6 Release the tensioner pulley back into position.
    • 7 Look at all the pulleys and make sure the serpentine belt is properly seated on each one. Otherwise, release the belt tension and adjust the belt.
    • 8 Connect the ground (black) battery cable using the wrench.
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Serpentine belt diagram for a 2003 Chevy unpalatable 4.3

Pop the hood of the car and locate the serpentine belt routing diagram. The diagram on the 2003 Chevrolet Impala is on top of the fan shroud. The diagram will be a picture of all of the accessory pulleys and how the serpentine belt is routed among the pulleys. This diagram will give you the exact direction for routing the new belt onto the pulleys. If you cannot find a serpentine belt routing diagram, take a notepad and pen and draw out the exact routing diagram of the old belt across the pulleys.

  • 2 Locate the serpentine belt tensioner. It is located below the alternator on the left front side of the engine. The tensioner on the 3.4 liter, 3.5 liter and the 3.9 liter engines will require a 3/8 ratchet to release the belt tensioner. The 3.8 liter engine will require a ratchet and a 15 mm socket for the belt tensioner. Rotate the belt tensioner clockwise to loosen and remove the belt from the belt tensioner pulley.
  • 3 Slide the old belt from the belt tensioner pulley. Remove the belt from the remaining pulleys and pull the belt from the engine compartment.
  • 4 Route the new belt across the crankshaft pulley first. The crankshaft pulley is the big pulley on the bottom of the engine in the center. Then route the serpentine belt across the remaining pulleys as directed by the serpentine belt routing diagram. Leave the belt tensioner pulley for last.
  • 5 Rotate the belt tensioner clockwise again to relieve the tension and slide the new belt across the top of the belt tensioner pulley. Release the belt tensioner and the belt will tighten up as the tensioner applies pressure to the belt. Make sure the new belt is properly seated in all the pulleys.
  • 6 Crank the engine and inspect the belt again to make sure that it stays seated in the pulleys.

  • Read more: How to Replace a Serpentine Belt on a 2003 Chevrolet Impala ' eHow.co.uk http://www.ehow.co.uk/how_6120665_replace-belt-2003-chevrolet-impala.html#ixzz1Yi6QLAjb
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    Change serpentine belt on 06 sienna

    1. 1 Check to ensure the Sienna's engine is cold, then make sure the Sienna is in park, the ignition is in the off position and the key is removed from the ignition to prevent any possibility of the engine engaging during the serpentine belt replacement.
    2. 2 Open the hood and locate the serpentine belt routing diagram sticker on the side of the engine casing. Study it for a moment before removing the existing belt. It is essential the new belt be installed exactly as the diagram indicates.
    3. 3 Find the tensioner pulley, the main pulley that controls the serpentine belt, and fit a 1/2-inch socket wrench over the self-tensioner on the outside of the pulley.
    4. 4 Pull the wrench to the left to move the pulley forward, which loosens the belt, then remove the belt.
    5. 5 Compare the old serpentine belt with the new, replacement belt for length, width and number of grooves on the belt's underside. Be certain the replacement belt is the right part.
    6. 6 Fit the new belt on to each pulley according to the serpentine belt routing diagram on the manufacturer's sticker, or according to the drawing made prior to removing the old belt. Fit the new belt on to the tensioner pulley last, again applying pressure on the pulley's self-tensioner with the half-inch socket wrench to loosen the pulley.
    7. 7 Release the pressure on the self tensioner and allow the tensioner pulley to ease back into place, thereby tightening the new serpentine belt with the appropriate tension.
    8. 8 Remove the wrench and close the hood.
    Thank you and good luck,
    Lee
    0helpful
    1answer

    How do i release the tension belt ... cant seem to find bolt being referred to in other docs

    Here's the procedure on how to release and replace the tension belt of your car.

    Step 1
  • Open the hood on the Volvo S-60 and find the serpentine-belt routing diagram. The diagram should be attached to the top of the fan shroud that covers the radiator. If not, draw out the exact routing method of the serpentine belt around each pulley with a pen and a piece of paper.
  • Step 2 Locate the serpentine-belt tensioner that is in the very center of the engine. The tensioner will have a square bolt head in the center of the tensioner pulley.
  • Step 3 Slide the open end of the 5/8-wrench onto the square bolt head in the center of the belt-tensioner pulley. Turn the tensioner pulley counterclockwise and slide the serpentine belt off of the tensioner pulley.
  • Step 4 Remove the serpentine belt from the other pulleys and pull the belt out of the engine compartment.
  • Step 5 Slide the new serpentine belt into the engine compartment and around the crankshaft pulley.
  • Step 6 Route the new serpentine belt around each pulley. Turn the belt-tensioner pulley counterclockwise again and slide the serpentine belt around the tensioner pulley. Release the tensioner and it will tighten the belt around the pulleys. Look over the belt to ensure that it is inside of each pulley.
  • Step 7 Crank the S-60 and look over the serpentine belt with the motor running. Let the engine run for about one minute and shut the engine off. Close the hood.
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    How to remove and replace a serpentine belt 96 saturn

    Click on the following free, direct Link. It has all the Serpentine Belt Diagrams you will need for the 1.9L 4-Cylinder Engine and various Engine Options (AC/No AC etc.), complete with Instructional and Directional Diagrams.

    http://www.2carpros.com/car_repair_information/year/1996/make/saturn/model/sl/1996_saturn_sl_drive_belt_routing_diagram.htm

    Let me know if this helped or if you have additional information or questions. Feel Free to contact me at FixYa.com!

    "HOW TO":
    Standard Rules to Removal the Serpentine Belt with an Automatic Tensioner:
    1. Find the Tensioner(s). (See Diagrams on Link)
    2. Using a Serpentine Belt Tensioner Tool, Or Wrench OR Ratchet, Rotate/Move the Tensioner USING THE AVAILABLE NUT (on the Pulley or Arm Base) OR the OPENING (3/8ths or 1/2 inch square opening) rotating the Tensioner Pulley/Arm - moving it away from contact with the belt and towards the area where the belt is not in contact with the Tensioner Pulley. The Tensioner is spring loaded, and is hard to rotate/move.
    3. Remove the loosened belt off one of the other more easily accessed Pulleys.
    4. DO NOT quickly release the Tensioner, but gently allow the Tensioner to rest in its closed position.

    Standard Rules for Installing the Serpentine Belt with an Automatic Tensioner:
    a. Pick a Pulley that is most easily accessed. This will usually be on top. This will be the last Pulley that the belt will go on.
    b. Using the Diagram: Install the new Serpentine Belt on the remainder of the Pulleys....over, under, left right.
    c. Using a Serpentine Belt Tensioner Tool or Wrench or Ratchet Tool: Rotate/Move the Tensioner Pulley/Arm "away" from Belt contact area on the Tensioner. This spring is pretty hard and with a new belt, it will be even harder to install. Rotate/Move this to as-close to the maximum allowed inorder to have enough slack in the belt to get it up and over the last pulley.
    d. Using your other hand - Pull the Belt up and over the Last remaining Pulley.
    e. Before releasing the pressure on the Tensioner, visually inspect the remainder Pulleys and the Belts' Positioning on them.
    0helpful
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    How to put on the belt?

    If it's a serpentine belt

    Go to autozone

    Rent a serpentine belt remover tool for free

    Release tension on the belt tensioner, remove belt

    Install new belt

    Release the belt tensioner from the tool and you are done.
    4helpful
    1answer

    Replacing serpentine belt

    Click on the following direct Link. It has the Serpentine Belt Diagram that you will need depending on your engine size (2.0L or 3.0L) and your options (AC/No AC ect.).
    http://www.2carpros.com/car_repair_information/year/2001/make/mazda/model/tribute/2001_mazda_tribute_drive_belt_routing_diagram.htm

    Standard Rules to Removal the Serpentine Belt with a Tensioner:
    1. Find the Tensioner(s). (See Diagrams on Link)
    2. Using a Serpentine Belt Tensioner Tool, Or Wrench OR Ratchet, Rotate/Move the Tensioner USING THE AVAILABLE NUT (on the Pulley or Arm Base) OR the OPENING (3/8ths or 1/2 inch square opening) rotating the Tensioner Pulley/Arm - moving it away from contact with the belt and towards the area where the belt is not in contact with the Tensioner Pulley. The Tensioner is spring loaded, and is hard to rotate/move.
    3. Remove the loosened belt off one of the other more easily accessed Pulleys.
    4. DO NOT quickly release the Tensioner, but gently allow the Tensioner to rest in its closed position.


    Standard Rules for Installing the Serpentine Belt with Tensioners:
    a. Pick a Pulley that is most easily accessed. This will usually be on top. This will be the last Pulley that the belt will go on.
    b. Using the Diagram: Install the new Serpentine Belt on the remainder of the Pulleys....over, under, left right.
    c. Using a Serpentine Belt Tensioner Tool or Wrench or Ratchet Tool: Rotate/Move the Tensioner Pulley/Arm "away" from Belt contact area on the Tensioner. This spring is pretty hard and with a new belt, it will be even harder to install. Rotate/Move this to as-close to the maximum allowed inorder to have enough slack in the belt to get it up and over the last pulley.
    d. Using your other hand - Pull the Belt up and over the Last remaining Pulley.
    e. Before releasing the pressure on the Tensioner, visually inspect the remainder Pulleys and the Belts' Positioning on them

    Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.Com!
    5helpful
    2answers

    How do I asjust the serpentine belt on a 2005 ford freestar?

    It should not require any adjustment. the right tension is provided by the idler pully. If you want to release the tension for serpentine removal or examination release the tension on the idler pulley in the rear of the motor, spin the nut in the center like you were tightening, and the pressure will be released from the serpentine belt. Reversely, the appropriate tension will be given using the same way when the strap is reinstalled.
    Dan
    2helpful
    1answer

    Replacing a serpentine belt

    Don't have a chart, video, or diagram available at the moment. Can offer you generic advice.

    1.Somewhere in the middle of that serpentine belt, that is wrapped around all those pulleys, is an Idler tensioner Pulley. All this pulley does, is put tension on that serpentine belt. Usually located somewhere in the middle.

    The Idler tensioner Pulley will be on a bracket. It will be on the end of the bracket. The bracket usually has a 1/2 inch square hole in it. This is used for a tool, that resembles a 1/2 inch breaker bar.
    -> I, use a 1/2 inch breaker bar.
    The 1/2 inch breaker bar is inserted into this square hole, and the bracket is pulled to one side.
    This pulls the tensioner pulley away from the serpentine belt, allowing the belt to have slack, and then the belt is slipped off of one of those pulleys. Release the pressure slowly, remove the tool. Then the serpentine belt is removed all the way.

    (The Idler tensioner pulley bracket, can only be moved in one direction, to take pressure off of the serpentine belt. The direction opposite, of it putting pressure on the serpentine belt.

    The spring used to put pressure is Very strong. This is also an area, where you can easily slip, cutting your knuckles, or fingers, or hand, on sharp objects. Use caution, you may want to wear a glove, or gloves!)

    Then the new serpentine belt is wound around the pulleys in the correct pattern, the Idler Tensioner Pulley is once again pulled to the side, and the last of the serpentine belt is slid into place. Then you slowly release the tensioner pulley, and it puts pressure on the serpentine belt once more.

    Make sure the serpentine belt is in the grooves of the pulleys, and is wound around in the correct pattern.

    On the car hood inside, or on the radiator support, or perhaps on the inner fender well, or in the Owners Manual, it should show the correct pattern for installing the serpentine belt.

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