Question about 2003 Chevrolet TrailBlazer

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Replacing serpentine belt

Is process easy? Where and how do I adjust the tension on the belt? I am cautious on replacing this part only because I have had difficulty in the past with different vehicles. I want to do it right and without any mistakes.

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  • Ticadoo Mar 04, 2009

    I called to order a serpentine belt for my 2003 Trailblazer and one place is asking me for amps of alternator? Their price is 1/2 of others. ?? Do they need to know this info?

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  • Master
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Their is no adjusment the idler tenionser takes up the slack and it is easy too replace

Posted on Feb 18, 2009

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How do I adjust the tensiion on the serpentin belt on a 1996 plymoth voyager van


There is no adjustment for the serpentine belt tensioner. It is spring loaded to keep the correct tension on the belt. If the tensioner fails to keep the belt tight enough sometimes lubricating the pivot bushing with penetrating oil will loosen it up and cure the problem; if not replacing the tensioner is the cure.

Jul 30, 2011 | Plymouth Grand Voyager Cars & Trucks

1 Answer

Where is the serpentine belt adjustment on a 96 cavalier 2.2 litre


Hello ycharger.
The cavalier uses a spring tensioner and is not adjustable.
If your belt is loose it is most likely that the tensioner has seized or the spring has broken and not keeping the belt tight.
It will require the replacement of the tensioner as an assembly.

Not a real easy one to do though.
Here is the guide from the manual.

  1. Disconnect negative battery cable and remove the coolant reservoir.
  2. Remove serpentine belt.
  3. Remove two generator bolts.
  4. Remove power steering pump and position aside.
  5. Remove tensioner bolts and tensioner.
  6. Reverse procedure to install, Torquing tensioner bolts to 37 ft. lbs.
There you are, I hope it helps.
Thank you for using FixYa.

KL

Dec 26, 2010 | 1996 Chevrolet Cavalier

1 Answer

I am in the process to install a new alternator for which I need to loosen the belt. Is there a tensioner and what does it look like ?


Don't know what size of motor you have but this should help you:

Removal & Installation
  1. Loosen the accessory-to-mounting bracket bolt(s) and adjusting bolt.
  2. Rotate the accessory to relieve belt tension.
  3. Slip the drive belt from the accessory pulley and remove it from the engine.

If the engine uses more than one belt, it may be necessary to remove belts that are in front of the belt being removed

To install:



c17hydro_38.gif

If the engine uses more than one belt, it may be necessary to remove belts that are in front of the belt being removed


  1. Place the new belt over the crankshaft or drive pulley and stretch over the driven (accessory) pulley.
  2. If removed, install the other belts in the same way.
  3. Adjust the belts to the proper tension.
  4. Tighten the adjusting and mounting bolts.

Models equipped with the V6 engine and most 1987-94 engines use a single (serpentine belt) to drive all engine accessories. The serpentine belt driven accessories are rigidly mounted with belt tension maintained by a spring loaded tensioner assembly. The belt tensioner has the ability to control belt tension over a fairly broad range of belt lengths. However, there are limits to the tensioner's ability to compensate for varying lengths of belts. Poor tension control and/or damage to the tensioner could result with the tensioner operating outside of its range.

To replace the belt push (rotate) the the belt tensioner and remove the belt. Use a 15mm socket on the 4-cyl. engines and a 3/4 in. open end wrench on the V6 engines.
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Nov 20, 2010 | 1989 Chevrolet Cavalier

1 Answer

How to adjust the seepentine belt on the 1988


There is no adjustment for the serpentine belt.It has a belt tensioner and is self adjusting.If the tension is loose then you have to replace the belt tensioner.Hope this helps.Good luck.

Jul 21, 2010 | 1988 Chevrolet Celebrity

2 Answers

Is the idler pulley what sets the tension on the serpentine belt


yes and that's how you change the belt also. just turn it with a wrench to loosen it if you want to change the belt.

Dec 18, 2009 | 1996 Dodge Caravan

1 Answer

1998 Dodge Avenger serpentine belt issue


What size of motor, do you have a/c and which belt are you replacing? Not sure about your engine size since you did not list it so please pick the applicable motor:

Sebring Coupe And Avenger (2.5L VIN N Engine)
  1. Disconnect the negative battery cable.
  2. Loosen the tension pulley locknut.
  3. Rotate the adjusting bolt to decrease the belt tension.
  4. Remove the drive belt from the engine.
To install:
  1. Position the replacement belt around the pulleys, making sure the belt routing is correct.
  2. Adjust the belt by rotating the adjusting bolt until the correct tension is reached. Refer to the procedure earlier in this section for belt adjustment.
  3. Once the desired tension is reached, secure the locknut. Recheck the belt tension.
  4. After the belt is installed and adjusted properly, tighten the locknut to 17 ft. lbs. (23 Nm).
  5. Connect the negative battery cable.

2.0 DOHC

Power Steering Pump And A/C Belt
  1. Disconnect the negative battery cable.
  2. Loosen the tension pulley locknut.
  3. Rotate the adjusting bolt to decrease the belt tension.
  4. Remove the drive belt from the engine.
To install:
  1. Position the replacement belt around the pulleys, making sure the belt routing is correct.
  2. Adjust the belt by rotating the adjusting bolt until the correct tension is reached. Refer to the procedure earlier in this section for belt adjustment.
  3. Once the desired tension is reached, secure the locknut. Recheck the belt tension.
  4. After the belt is installed and adjusted properly, tighten the locknut.
  5. Connect the negative battery cable.

Oct 29, 2009 | 2000 Dodge Avenger

3 Answers

Car makes squeaky noise when i turn it on


CHECK IF POWER STERING IS LEAKING, IF NOT LEAKING TAKE W 40 SPRAY ON LOWER BALL JOINT AND TEST IF NO MAKE NOISE /IF NOISE STILL SPRAY ON STRUT RUBERS CHECK AGAIN , I AM SUE YOU WIL FIND THE PROBLEMI HAVE SAME PROBLEM SAME PROBLEM POWER HOSE STERING WAS LEAKING

Aug 07, 2009 | 1991 Honda Accord

1 Answer

Adjust tension on fan belt


Your '90 Benz has a belt tensioner that is automatic. You just insert the correct tool to ease the tensioner pulley, (The tool is inserted into the bracket for the tensioner pulley), to the left as you're facing the car. Then slip your serpentine belt off. Reinstallation is a reversal of this process. (I believe it's to the left, don't quote me on that)

The radiator support in front, should have a diagram of how the serpentine belt goes on the pulleys.

If your serpentine belt slips, then the belt tensioner pulley assembly is bad, needs to be replaced, or the serpentine belt itself is worn out.

Apr 19, 2009 | 1990 Mercedes-Benz 300 Diesel

1 Answer

Need serpentine belt adjusted


You cant adjust the belt tensioner. You have to replace it if it wont provide the proper tension.

Apr 13, 2009 | 2002 Toyota Highlander

5 Answers

Serpentine belt replacement


2.0L Engines
See Figures 11, 12 and 13
The accessory drive belt for 2.0L engines has no provision for manual belt adjustment, since these engines use an automatic belt tensioner. Drive belt slack is taken up by the automatic tensioner.
Movement of the automatic tensioner assembly during engine operation is not a sign of a malfunctioning tensioner. This movement is the tensioner self-adjusting and is required to maintain constant belt tension.
The belt tensioner has a belt length indicator. If the indicator marks are not between the MIN and MAX marks, the belt must be replaced.
0900c1528008d836.jpgFig. 11: Drive belt routing-2.0L SOHC engine with A/C 0900c1528008d837.jpgFig. 12: Drive belt routing-2.0L SOHC engine without A/C 0900c1528008d838.jpgFig. 13: Drive belt routing-2.0L DOHC engine

Jul 24, 2008 | 1999 Ford Escort

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