Question about 2002 Chevrolet Impala

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Netnhow to replace the idler pulley - 2002 Chevrolet Impala

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Posted on Mar 24, 2011

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Very simple, release the belt tension. See pic.netnhow to replace the idler - consistant_11.gifconsistant_12.gifDepending on what motor you have (3.4L or 3.8L use a 3/8" ratchet, or a 15mm socket. after the belt is removed, simply unbolt the bolt in the middle of the pully.

Posted on Mar 24, 2011

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1 Answer

Idler pulley bracket where can I buy one or is there an alternative to it


you need to post year, make, model and what engine?
also which idler pulley? I'm guessing you're probably looking at the accessories drive belt ("fan belt") idler pulley bracket.
Is this a serpentine belt.
a lot of cars use Idler and or tensioner pulleys on the timing belt/chain. the Idlers often don't have brackets
why are you replacing the bracket? did you break it? or do you just need the pulley? I normally replace both pulleys (idler and tensioner) when replacing either one.
anyways.. need a lot more info to answer your question

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HDo I remove and install an idler pulley on a 2005 Toyota Camry?


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1 Answer

How to replace a idler pulley on a 1997 international 4700 series


Hi Melissa:
Nice truck!
I'm assuming that the bearings in the idler pulley are shot which is why you're replacin the pulley. Pulley's are typically attached by a bolt through their centre. Replacing the idler consists of getting the bolt out and exchanging new for old. Here's the route I would recommend:
SAFETY FIRST - Disconnect negative battery terminal.
- Make a diagram of belt routing.
- Slacken idler and remove belt
- Remove Idler retaing bolt (Watch for washers or spacers)
- Install new Idler with washers or spacers in same position.
- Tighten retaining bolt.
- Use diagram to re-install belt;
- Re-connect negative battery terminal.
- Check for stray tools or loose objects.
Test run.

Mar 11, 2015 | Cars & Trucks

1 Answer

How to replace the tention idler pulley


using a breaker bar or some other tool w/ 1/2'' drive, insert into idler, there is a square hole, remove belt tension, donot remove belt, but lift belt off say the alternator, it would help if you hang the belt w/ wire or something so as not to let it drop. using a 15mm wrench, remove mounting bolt to idler, remove idler. better to replace the entire ilder w/ pulley, as an assymbly, they wear out like any thing else. when istalling new idler, must be positioned correctly. theres a finger which protrudes out of idler, this must be inserted @ engine sideof idler. reinstall bolt, tighten, reposition belt, using breaker bar 1/2" drive again, remove belt tension, so you can get belt over alternator pulley, release tension , done ! make sure belt is centered, and on properly according to belt rounting. when satisfied w/installation , start engine, check your work, remember to visulize existing idler, etc., etc., before you start this so you can put on the new one on exactly the way the old one was !!!!!!!!!!1

Jan 31, 2013 | 1991 GMC Sonoma

1 Answer

I have a 2000 gmc Jimmy . I'm going to change the


Locate the idler pulley to the left of the crankshaft pulley. The idler pulley bolts to the idler arm. The idler pulley is replaced with the arm because they are sold as one unit.

  • 2 Place a 3/8-inch ratchet driver into the square hole on the face of the idler pulley and pull up on the handle. This releases tension on the Sonoma's serpentine belt. Pull the belt off the idler pulley, lower and remove the ratchet handle.
  • 3 Remove the two bolts that secure the idler arm to the engine block using a socket and ratchet, and discard the old idler arm.
  • 4 Place the new idler arm against the engine block and secure it using the socket and ratchet.
  • 5 Put the ratchet driver into the square hole on the new idler pulley, pull up on the handle and place the serpentine belt over the pulley.
  • 6 Lower and remove the ratchet handle.
  • Oct 15, 2011 | 2000 GMC Jimmy

    2 Answers

    Why would my serpentine belt break? there is melted rubber on a few pulleys now...


    if you smel lburning rubber one of the pulleys has siezed so try to spin all of the pulleys to see which one it is and then replace it

    Mar 13, 2011 | 1999 Pontiac Grand Am GT

    2 Answers

    Noise on belt tensioner or idler pulley


    Carefully check the condition of the belt, the tensioner, and the idler pulley. I had the same thing happen and once I knew where to look, I could see that my idler pulley bearings were bad (understatement...they were GONE!)

    Your idler pulley and tensioner need to look even and straight and not leaning in or out. A sure sign of a problem is if one or the other leans in toward where the tension from the belt would be on it.

    The best way to check is to buy, rent, or borrow a serpentine belt wrench to take the pressure off and then try and wiggle the tension and idler pulley. If you feel any play, replace as soon as possible. I dragged my feet and ten days after I heard the noise, my idler pulley flew apart right as I pulled into work.

    Feb 19, 2011 | 2003 Toyota RAV4

    3 Answers

    Why belt keeps shredding


    usually due to a bad bearing, or from resistance due to a frozen or failing assemble, as in power steering, alternator, or an idler. The best way to determine is to remove the belt and check all pulleys for play and resistance.

    Feb 10, 2011 | 2000 Chevrolet Venture

    1 Answer

    Replace idler arm pulley


    An idler arm is a steering component found on vehicles without rack and pinion steering. Your referring to an idler pulley. To replace: remove the belt, remove the bolt from the center of the pulley, replace the pulley and reinstall the belt.

    Apr 11, 2009 | 1999 Dodge Intrepid

    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

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