Question about 1998 Mercury Sable

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How to loosen belt tension

What tool to use

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A special serpentine belt tool. If you have a Autozone near by call them, the one down the street from me rents tools.

Posted on Feb 02, 2009

  • Dave Real
    Dave Real Feb 02, 2009

    Until you break the tensioner and your knuckles. They make a special tool for this for a reason. I have replaced dozens of belts on Ford V-6 engines, many towed in after someone tried to change it without the tool. You can rent the tool for free at many Autozone stores, just put a deposit down and they give it back when you return it. Just trying to help you so it doesn't turn into a nightmare.


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You can use a jack handle, or a large screwdriver....just pry on the tension pulley enough to release the tension on the belt....

Posted on Feb 02, 2009


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How do I loosen the tension on the belt. I replaced the idler pully but can get the belt back on. Please advise. Thanks.

The tensioner has an insert for loosening...many are just the end of your 3/8 drive socket can also borrow a tensioner tool from your local parts store...You MUST push the tensioner arm forward or backward to allow you to slip the belt back on. Hope this helps.

May 04, 2015 | 2005 Pontiac Grand Prix

2 Answers

How do you replace the serpentine belt on a 1995 Buick century 4 cylinder?

This is the advertised procedure:


Except Serpentine Belt
It may be necessary to loosen more than one pulley or remove another belt to access the drive belt, such as the power steering and air conditioning.
  1. Loosen the driven accessory's pivot and mounting bolts.
  2. Move the accessory toward or away from the engine until there is enough slack in the belt to slip it over the pulley of the driven accessory.
  3. Remove the belt from the engine.
  4. Install the new belt and move the accessory toward or away from the engine until the tension is correct. You can use a wooden hammer handle as a lever, but do not use anything metallic.
  5. Adjust the belt tension, then tighten the bolts.
Serpentine Belt
  1. Place a tool over the tensioner pulley axis bolt.
  2. Rotate the tool counterclockwise to relieve belt tension.
  3. Remove the drive belt.
  4. Carefully release the tensioner pulley and remove the tool.
To install:
  1. Route the belt over the pulleys, except tensioner.
  2. Place tool over tensioner, rotate counterclockwise and install belt.
  3. Remove the tool, then check alignment of tension and belt.

Jan 13, 2015 | 1995 Buick Century

1 Answer

Loosen belt tensioner

You need the special square drive tool that fits in the tensioner to take tension off the belt.

Apr 05, 2014 | 1994 Volvo 850

2 Answers

How to replace v - ribbed belt

See this video.
Try these links too

Feb 12, 2012 | Cars & Trucks

1 Answer

How to remove alternator belt what tools do I need

first loosen the tension pulley, it is an independent pulley, you will notice that pulley, because it is the only pulley that is separated and no other function but to tighten the belt... at the back of that pulley it has a nut... usually theres two nut, 1st loosen the locking nut, then loosen the tensioning nut or bolt... once its loosen you can easily remove and replace the belt.... tools needed: open and close wrench set.

May 04, 2011 | Hyundai Entourage Cars & Trucks

1 Answer

2003 x type jag trying to change serpintine you loosen tensioner pulley with a tool or loosen nut at the bottom of pulley with wrench.

Dont loosen the bolt at the bottom. The tensioner is spring loaded and could fly out at you. You need to use a tool to release the tension on the belt by moving the tensioner arm. You can then remove the belt and use the same procedure to put the new one on.

Jan 30, 2011 | Jaguar X-Type Cars & Trucks

1 Answer

Replaceing the serpentine belt...what the easiest way to do it ?

with the proper tools, it takes 10-15 minutes. use the belt tensioner tool to rotate the belt tensioner and the belt will loosen to come off. take belt of while noticing the way it goes. install the same way, place belt as close as possible and relieve tension of the tensioner with the tool and voila !

Jan 04, 2011 | 1998 Oldsmobile Cutlass

1 Answer

How do you loosen belt to change alternator.

You need a belt tensioner tool, it's a long flat bar with a 3/8" square drive on the end. Most auto parts stores will have one to borrow.

Insert the tool into the belt tensioner and rotate this will loosen the belt for removal.

Make sure you disconnect the + battery cable before you start working on the alternator.

Nov 12, 2010 | 1994 Ford Taurus

2 Answers


The tension is set automatically with the belt tensioner. It looks like a pulley. You put a wrench or socket on the bolt in the center of the tensioner and apply pressure. It is spring loaded. As you apply the pressure it will release the tension on the belt for removal or installation.

Jul 05, 2009 | 2004 Ford Expedition

1 Answer

Need to change a belt on 97 ford explorer

u dont loosen pully there is a place on belt tensioner you put breaker bar, ratchet,or belt tool in to pull tensioner back to remove belt

Mar 05, 2009 | 1997 Ford Explorer AWD

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