Question about 2002 Oldsmobile Alero

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Serpentine belt how do you relieve the pressure of the tension bar to replace the serpentine belt?

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  • midget778 Apr 27, 2013

    as for the solution how do you get to the tensioner square do you need to remove the front fender?

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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

Posted on Oct 27, 2008

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Remove/replace serpentine belt


there is a belt tensioner that you need a long handled ratchet to adjust then simply take old belt off and put new one on of buy one here Search results for serpintine belt tool

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How to releived the tension on the belts when removing the the alternator on A 1995 jeep wrangler


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If there is a tensioner with a spring, then put a 1/2" breaker bar on it and rotate the tensioner to relieve tension.

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Loosen the nut and bolts for the alternator to swing it in a way that relieves tension on the belt.

May have to relieve tension on other belts in similar way to change the belt in question.

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How do I loosen the tensioner for serpentine belt on an S10 1996 chevy? I need to remove the alternator.


The tensoiiner is spring loaded. On the front of it in the center is a nut, get the correct size socket attached to a breaker bar and rotate the tensioner to relieve the pressure and hold it while you remove the belt

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How do you change the serpentine belt on a 2004 Trailblazer?


Note the drive belt routing, usually there is a sticker under the hood with the routing. using the right socket and a breaker bar, rotate the drive belt tensioner clockwise to relieve tension. remove belt and slowly release breaker bar tesnsion. for V8, Install on all pulleys except generator, loosen tension and install on generator. for 4.2L install belt over all pulleys except tensioner, relieve tension and install over tensioner, slowly release breaker bar tension.

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Steps to replacing the serpintine belt


release tension on belt by:
-put a socket/breaker bar or ratched on the tensioner pulley bolt and use it to relieve tension on the belt
-slide belt off tensioner pulley. replace with new belt in same pattern across all pulleys and again relieve tension on the tensioner puller to slide the new belt back on
--you may need to remove the bolt on the tensioner closest to the pulley (i don't know just judging by the picture i found)
---if you don't know what the tensioner looks like look up the part on autozone's website for a picture you can match on your car

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1 Answer

HOW TO CHANGE DRIVE BELT ON MY 98 GMC SONOMA 4 CYLINDER


it may be easier to attach the breaker bar to the tensioner arm from under the vehicle to relieve belt tension

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  1. On 1994-97 2.2L engines and 1994-96 4.3L engines, using a 1/2 in. breaker bar and if necessary, with a socket placed on the tensioner pulley bolt, rotate the tensioner counterclockwise to relieve the belt tension. On some 2.2L engines it may be easier to attach the breaker bar to the tensioner arm from under the vehicle.
  2. On 1998-99 2.2L engines and 1997-99 4.3L engines, using a 3/8 in. breaker bar, rotate the tensioner counterclockwise to relieve the belt tension. On some 2.2L engines it may be easier to attach the breaker bar to the tensioner arm from under the vehicle.
  3. Remove the serpentine belt.
To install:
  1. Route the belt over all the pulleys except the tensioner.
  2. Place the breaker bar and if necessary the socket, on the tensioner pulley bolt and rotate the tensioner counterclockwise to the released position.
  3. Install the belt and return the pulley slowly to its original position. Do not let the pulley snap back into position as this may damage the belt and pulley.
  4. Check that the belt is properly seated in each pulley.

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1 Answer

I need to replace a serpentine belt on an 89 honda accord what is the most critical part that i need to watch for?and what specific tools do i need? any suggestions would be much appreciated


Serpentine belts are the easiest to do....carefully look at the route diagram for running the belt, make sure you have a long breaker bar with the correct socket to fit the tensioner. You'll need to pull the tensioner against itself to relieve pressure on the belt. Once pressure has been released carefully hold the bar and with the other hand work the belt off the nearest pulley. release the tensioner and get your new belt ready to slip back on the exact way the old came off. When you apply pressure on the breaker bar again, you will have to pull it even farther to get the newer belt on because the newer belt has not stretched out any. Patience is your greatest tool.

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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.
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2 Answers

Replacing belts


You will need to have a 3/8 drive ratchet or breaker bar to place into the idler pulley slot that is rectangular. Apply pressure to the wrench in the direction to relieve the belt tension. Slip the belt off of one of the pulleys and gently release the idler tensioner. There should be a map that shows you the belt routing on the front cowl. If you do not see it remember the belt routing as you remove it so you can replace it correctly. If it is a serpentine belt make sure the ribs of the belt are seated in all the pulleys before starting the truck.

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