Question about 1994 Chevrolet Corsica

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I need to release the belt tension on my 3100 sfi v6 engine so i can remove my alternator but i dont know how.

3100 sfi v6 how do i release the belt tension to remove alternator?

Posted by Everett on


5 Related Answers


Gustavo Ortiz

  • 637 Answers

SOURCE: how to release tension on serpentine belt to

af74bf3.gif need to release the belt tensioner with the appropiate tool and take out the belt and remove the alternator.

Posted on Oct 28, 2010


Nick DelRegno

  • 49 Answers

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.

Posted on Jan 25, 2009



  • 245 Answers

SOURCE: Serpentine belt tension release

on the idler there is either a bolt or a square hole. if it has the square hole it is for a 3/8 drive breaker bar if it just has the bolt on it find a wrench that fits turn either of them right as if you were tightening them this will release your tension.

Posted on May 20, 2009

Chris Gennaria

  • 92 Answers

SOURCE: replacing thermostat on 3100 sfi v6

1. drain coolant from radiator
2. unbolt and remove the water neck from the engine block (it's attached to the upper radiator hose) and scrape any leftover gasket material off of the mating surface w/ a razor or gasket scraper, being careful not to actually gouge the metal
3. pull thermostat out of engine block (it's easy to see w/ the water neck off)
4. scrape any gasket material off mating surface on engine side, being even more careful not to gouge the metal here
5. place new t-stat on engine side opening
6. place gasket over the thermostat (you can put a thin bead of RTV sealant on both sides of the gasket if you wish, some people think it's overkill, but i hate doing things twice)
7. replace water neck
8. refill cooling system, use the little brass bleeder screw on top of the motor to bleed out the air until a steady stream of coolant is coming out after the engine is warmed up. close the screw.

Posted on Sep 29, 2009


Dustin Reuber

  • 468 Answers

SOURCE: need to change alternator but dont know where

Ok, the easy way to find the belt tensioner is:
Find the two pulleys that are made out of plastic or nylon. Grab the belt and pull (or use a large screwdriver, or something like that for leverage). Watch to see which pulley moves side to side, not rotating; it'll be one of two smaller pulleys in the middle of everything. When you find this, then you can put a socket and ratchet on the bolt in the middle of the pulley, and turn to get it to loosen. It won't stay put, so you'll have to loosen, and slide the belt off say, the water pump pulley(also for the fan), then you can let the tension off. Hope this is what you were looking for.

Posted on Dec 01, 2009

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make a sketch of the belt before removal, helps with refitting. if there is a belt tensioner release it , if auto tension fit a socket and pry bar to the alternator pulley nut and release tension and remove belt, disconnect battery and remove alternator bolts.

Apr 03, 2017 | 2006 Lexus Gs 300

1 Answer

Replace serpentine belt

Hello Cheri,

Removal & Installation

  1. Before servicing the vehicle, refer to the Precautions Section at
  2. Rotate the drive belt tensioner counterclockwise to release the spring tension.
  3. Remove the drive belt.
  4. To install, reverse the removal procedure. Make sure the belt is properly seated.

2WD 3.9L SFI OHV 6cyl


May 15, 2016 | 2007 Chevrolet Uplander

1 Answer

2005 xl7. How can I adjust alternator?

remove battery neg lug first. do not yank off alternator wires! until
this step is done first, or boom fire or eat acid.

which engine, we cant guess them here.
my guess H27 v6, wrong the 3.6L

all belts covered on car. (accessory)

here is a real 2007 page
seem you get lost at step 7

26044119-eqsv1nhxqdz21u4tq0h4adgz-1-0.jpg the alternator is NOT adjustable
so why ask this?
the $4 FSM covers this.
under drive belt replacement.
Drive Belt Replacement

Removal Procedure

Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .

Install the engine support fixture. Refer to Engine Support Fixture .

Remove the engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right Side .

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

Remove the engine splash shield. Refer to Engine Splash Shield Replacement - Right Side .

Remove the right side engine mount bracket. Refer to Engine Mount Bracket Replacement - Right Side .

Lower the vehicle.

Rotate the drive belt tensioner clockwise to release the drive belt tension.

Slide the drive belt off of the belt idler pulley (1).

Slowly release the drive belt tensioner.

Remove the drive belt from the accessory drive pulleys.
if the post was to remove alternator? is it
do above
then unbolt alt.
end guessing what you are doing....


Jan 08, 2016 | Suzuki Cars & Trucks

1 Answer

Replace serpentine belt

USA cars. only.
how to?
did you mean HOW to? (where,what ,when ,how , why,etc)

which engine, and which of 2 belts.?
the cam belt? G16 engine.? nah.
or the accessories belts.? I'll guess, Accessory drive belts.
guess 2:
my guess, is H25/7 V6 engine? or bigger V6. same family
"in the factory service manual on all suzuki's it is"
this is covered in the FSM book by suzuki, or or
suzuki pit stop plug, for $4
this has been asked now on fixya 100s of times and answered more.

the J27 engine, as fitted on USA cars (this is a USA forum,so...)
has 2 belts. one for ALT/pump
with a slotted, adjustable idle tension pulley (no springs)
one for P/S - A/C side.
it has a :
To adjust P/S and A/C belt tension, turn tension pulley using hexagon wrench.

see here for a clear view on H25

on the newer cars the alternator method changed,
and is more like the A/C side.

see arrow, my 04 dont have that. part.
on my 04 the alternator moves. (tilts) look first to see what YOU have. The G16 engines, is more tricky, but you have the V6 i think.
there are only 3 types, of tension systems.
1: TILT (alt, or P/S)
2: like below, with slot ,see slot? no springs here
3: spring loaded, idler, with allen key hole for release. J20) style.
so now you know what is there,
so ill just do above belt. (how to replace and tension)
  1. loosen both 12mm bolts at idler.
  2. the belt goes slack
  3. remove belt
  4. put on new
  5. set tension to 10mm deflection at 22lbs force mid span.
  6. lock screws down .
  7. done.
that covers no spring, idler.
the link above shows, how to do the spring drive type, with a hex 10mm key "allen"

Feb 28, 2015 | 2003 Suzuki XL-7

1 Answer

How to release belt tensioner?

The procedure Im giving here is for a vt v6 commodore.

The main belt tensioner is located near the alternator to release the drive belt tension you need to to becareful.

The bolt in the centre of the tensioner you will need to place a 13 or 15mm spanner over and very careful and slow apply pressurer
you will find there is reasonable amount of tensioner there but as u move the tensioner the drive belt will become loose and more movement for easier removly.
lift the drive belt off the alternator pulley once that's done then very slowly and gently let the tensioner return to the home position.
Same procedure to refit..

Jun 09, 2014 | 1999 Holden VT

1 Answer

Cant find a diagram for the serp belt. I replaced the alternator on a 01 windstar w/ a 3.8 V6 and need to know how to find and loosen the tensioner

For 2001 Ford Truck Windstar 3.8L SFI 6cyl


Fig. Accessory serpentine belt routing-3.8L engine (click for zoom)

Using a 15mm wrench attached to the drive belt tensioner pulley, rotate the tensioner clockwise to release the tension. Remove the drive belt from the pulley. When installing the new drive belt, ensure that the drive belt is routed correctly and note the position of the indicator mark on the tensioner.


Fig. Drive belt tensioner wear indicator marks

Hope helps (remember to rate thsi answer).

Mar 02, 2011 | Ford Windstar Cars & Trucks

1 Answer

I need to take off the belt how do i take it off a 1991 buick skylark?

You will have to loosen tentioner to get belt off of all pulleys. Then you need to jack up engine or pick up engine with a lift of some kind, just enough to hold engine in place while you remove upper engine mount, this has to be done so as to slip belt past mount and off engine. Then put new belt in position and bolt mount back in place. Release jack or lift. I usually put belt back on everything but alternator, pull on tensioner and roll back over alternator. This is on a 3100 engine, or 3.1 liter.

good luck

Jan 03, 2011 | 1995 Buick Skylark

4 Answers

How to remove alternator on a 2005 range rover

Click here

the link above should tell you all you need to know if you get stuck or have any problems give me a shout back ok

Oct 26, 2010 | Land Rover Range Rover Cars & Trucks

2 Answers

How do i remove a belt from a 2001 hyundai xg300 car

Removal & Installation
  1. Raise and support the vehicle.
  2. Remove the engine splash shield.
  3. Rotate the drive belt tensioner clockwise to release the drive belt tension.
  4. Remove the drive belt from the alternator.
  5. Slowly release the drive belt tensioner.
  6. Remove the drive belt from the accessory drive pulleys.
To install:
  1. Install the drive belt to the accessory drive pulley.
  2. Rotate the drive belt tensioner clockwise.
  3. Install the drive belt to the alternator.
  4. Ensure the drive belt is properly aligned and seated into the grooves of the accessory drive pulleys.
  5. Slowly release the drive belt tensioner
  6. Install the engine splash shield.
  7. Lower the vehicle.

Accessory drive belt routing—1.5L engine

Accessory drive belt routing—2.0L engines

Accessory drive belt routing—2.4L engines

Accessory drive belt routing—2.5L and 2.7L engines

Accessory drive belt routing—3.0L and 3.5L engine

Oct 17, 2009 | 2001 Hyundai XG300

4 Answers

2000 Dodge Durango Alternator


  1. Disconnect the negative battery cable (both on diesels).
  2. Release tension and remove the drive belt.
  3. Disconnect the wiring harness at the plastic connector.
  4. Remove the output terminal nut(s) and disconnect the output cable.
  5. On diesel engines: loosen, but do NOT remove, the alternator bracket-to-engine bolt.
  6. Remove alternator mounting bolts. Note any shims or spacers in the assembly.
  7. Carefully remove the alternator from the engine.

To install:
  1. Position the alternator on the engine. Be sure to install any shims or spacers.
  2. Install the alternator mounting bolts and tighten to 40 ft. lbs. (54 Nm) for 2.5L and diesel engines, 30 ft. lbs. (41 Nm) for others.
  3. Connect the electrical harness. Connect the output cable and tighten the nut.
  4. Install and the accessory drive belt and check tension.
  5. Connect the negative battery cable.
  6. Check the alternator for proper operation.
Tensioner must be moved to loosen belt
Use a socket and breaker bar to rotate the tensioner and remove the serpentine belt. (see pic)
Depending on your installed accessories and engine size CLICK HERE for a belt routing diagram - it also will show the belt tensioner location.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

Apr 23, 2009 | 2000 Dodge Durango

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