Question about 2002 Nissan Altima

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How do you release tension on idler pulley to replace serpentine belt

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There should be another pulley that looks like the idler pulley but is located just a little further down in the serpentine pulley system. This is the tensioner. Use a wrench or a shallow well socket to crank it to gain slack and slide the belt off the uppermost most easily accessible pulley. The tensioner will probably pivot toward the rear of the vehicle so you'll want to crank it toward the front of the vehicle (if the serpentine belt assembly is on your driver's side, reverse this).

Posted on Jul 04, 2009

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Posted on Jan 02, 2017

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SOURCE: How do I release the tension in the serpentine belt?

there is an 8mm bolt right under the alternator. loosen that up then loosen the bolt on the idler pulley and itll come right off

Posted on Jun 26, 2009

ewashmidas
  • 362 Answers

SOURCE: Serpentine belt routing

Here you go.. I looked up the same belt you did, it should be right.

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Posted on Feb 09, 2009

  • 1 Answer

SOURCE: Serpentine belt too tight to install

I had the same problem when trying to replace the serpentine belt on my 2001 Trooper. The Maintenance book was very vague and I couldn't tell exactly how the tension was taken off the belt, but it did clearly identify the tensioner pulley. I first removed the pulley and looked for some kind of slot that would give me the adjustment I needed, but no slotted adjustment is present on the 01 Trooper. I had to do some research so I pulled of the tensioner assembly and found that there is a spring coil which keeps tension on the belt constant, and eliminates any belt alignment problems.

The Litens style tensioner uses a spring to apply pressure towards the serpentine belt. The way to relax the spring is to use your 14mm socket and ratchet and force the pulley down by driving the pulley nut in the clockwise direction. This forces the spring to compress and the pulley to drop giving the needed clearance to get your new belt in place.

Posted on May 09, 2009

  • 4 Answers

SOURCE: 2008 Chevrolet Aveo5-Serpentine belt change

Stick a 1/2 inch ratchet or breaker bar into the square slot in the arm and turn.

Posted on May 16, 2009

  • 176 Answers

SOURCE: how do I release the belt tension pully to replace serpentine belt

You can run down to your local auto parts store and buy a serp belt tool. Or you can take a 3/8 drive ratchet, locate the 3/8 square hole in your tensioner and put the ratchet in the hole. For more leverage I put a deep socket over the ratchet handle and put a long 3/8 extention in the deep socket. This will provide ample leverage and will save buying more tools you do not need. Simply move the tensioner to the direction that takes pressure off of the belt.

Posted on May 24, 2009

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Changing serpentine belt on 2004 dodge ram 1500


Should be a diagram on hood.or at radiator .

May 30, 2014 | Cars & Trucks

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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


May 09, 2012 | 2006 Kia Sedona 3.8

1 Answer

Replace serpentine belt



Removal & Installation

  1. Rotate the drive belt tensioner clockwise and remove the drive belt.
    WARNING Never suddenly let go of the tensioned idler pulley. The force of the spring pressure suddenly released may damage the idler pulley mechanism. Always release the spring pressure gradually.


    0996b43f80204f01.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Rotate the belt tensioner to relieve tension on the belt-4.6L engine shown, others similar


To install:
  1. Route the belt over the pulleys making sure all the grooves in the pulleys and the belt line up correctly. Refer to the accessory belt routing section of this manual.
  2. Rotate belt tensioner clockwise and slip drive belt over idler pulley on tensioner.

  1. Rotate the drive belt tensioner clockwise and remove the drive belt.
    WARNING Never suddenly let go of the tensioned idler pulley. The force of the spring pressure suddenly released may damage the idler pulley mechanism. Always release the spring pressure gradually.


    0996b43f80204f01.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Rotate the belt tensioner to relieve tension on the belt-4.6L engine shown, others similar


To install:
  1. Route the belt over the pulleys making sure all the grooves in the pulleys and the belt line up correctly. Refer to the accessory belt routing diagrams above.
  2. Rotate belt tensioner clockwise and slip drive belt over idler pulley on tensioner.
If for any reason, the tensioner is crooked, replace it!!! Also, install the belt with the writing facing you like you are trying to read a book. This WILL (a trick I learned at Mercedes) prevent even a new belt from squeeling!!

Dec 16, 2010 | 2003 Ford Explorer

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Changing serpentine belt on 2000 chevy silverado 1500 4.8 v8


The belt has tension applied to it from an idler pulley arm. you need to release tension by using a socket and ratchet on the nut on the idler pulley. Release tesion and slide belt off . Make sure you have the diagram for serpentine belt. it is usualy under the hood. If not make a diagram yorself before removing belt.

Aug 13, 2010 | 2000 Chevrolet Silverado 1500

2 Answers

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

Dec 08, 2009 | 2005 Ford Freestar

1 Answer

I need to replace the idler pulley/tensioner and the belt


When this idler wears out it makes a growling noise that changes with engine RPM. A Bad Idler Pulley May Wobble & Wear Out Your Serpentine Belt Prematurely. Get Rid Of That Horrible Noise & Change.

Remove the serpentine belt by using a breakover bar, ratcher or serpentine belt removal tool with the correct size socket for the pulley mounting bolt. Rotate tensioner arm to release tension. Remove the bel. Using the proper size socket, remove the tensiones mounting bolt and remove tensioner.

Before installing the new tensioner, make sure the mounting surface for the tensiones is clean and free rust or other obstructions. Find the locator pin hole and rotate the replacement tensiones until the locator pin and the hole line uo. Insert the pin into the hole. Reinstall the mounting bilt and torque down to tight fit.

Rotate the tensioner arm to install the serpentine belt. Make sure the belt is correctly fitted to all pulley in the drive system. Start the engine to check for any problems. Extreme care should be taken when reinstalling the serpentine belt because some of the pulleys are located in remote positions ans it is very hard to see that belt is seated properly in all of the grooves. If the belt isn't seated properly, the belt can "ride out" of the grooves and the belt can be damaged.

Also must review the ZJ Repair Manual Secc-7-Cooling-System for graphics references.

Hope helped with this. Remember rated this help. Good luck.

Nov 26, 2009 | 1996 Jeep Grand Cherokee

1 Answer

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.

Apr 24, 2009 | 1998 Cadillac DeVille

1 Answer

1996 Grand AM 3.1L serpentine belt replacement


Try this procedure.
0900823d8004ed44.jpg


To replace a worn belt, locate the idler or generator pulley.

0900823d8004ed45.jpg


Loosen the hold-down fastener for the idler or generator pulley.

0900823d8004ed46.jpg


Pry the idler or generator pulley inward to release the belt tension and remove the belt.

0900823d8004ed47.jpg


Match the old belt up for size with the new replacement belt.

0900823d8004ed48.jpg


Observe the belt routing diagram in the engine compartment.

0900823d8004ed49.jpg


Install the new belt over each of the drive pulleys. Often the manufacturer recommends a sequence for feeding the belt around the pulleys.

0900823d8004ed4a.jpg

Art courtesy of Delmar - Thomson Learning.
Pry out the idler or generator pulley to put tension on the belt.
Pry out the idler or generator pulley to put tension on the belt.

0900823d8004ed74.jpg


Install the belt squarely in the grooves of each pulley.

0900823d8004ed75.jpg


Before adjusting belt tension, check for proper pulley alignment. This is especially critical with serpentine belts. Measure the belt deflection in its longest span. If a belt tension gauge is available, use it and compare the tension to specifications.
If a belt is too tight, wear to bearings for the water pump, alternator, and engine crankshaft can result.
Some late-model Chrysler engines require a torque reading to be taken when tension is applied to the generator drive belt. This is especially important on the longer, multiribbed V-belts.

0900823d8004ed76.jpg


Pry the idler or generator pulley to adjust the belt to specifications.

0900823d8004ed77.jpg


Tighten the idler or generator pulley fastener.

0900823d8004ed78.jpg


Start the engine and check the belt for proper operation.

Any more questions please ask. Good luck.

Jan 24, 2009 | 1996 Pontiac Grand Am

1 Answer

2000 f250 diesel, how do you release the tension on the belt?


There is a tensioner idler somewhere on the engine. Use a wrench and rotate the bolt in the center so that the pulley moves away from the belt, then use the other hand to slide the serpentine belt out from under the idler.
Slowly release the tensioner.

Jan 22, 2009 | 2000 Ford F250 Super Duty Crew Cabs

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