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Idler pulley noise

The idler pulley is making noise, it either that or the tensioner pulley. How can I access them to see which is making the noise and change it out?

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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blueextc3221
  • 15935 Answers

SOURCE: Can't get A/C belt around pulleys on my 01 Chevy Tracker 2.5 V6


Removal & Installation

1.6L Engine
A/C Compressor Belt

  1. Disconnect the negative battery cable.
  2. Loosen the A/C compressor mounting bolts.
  3. Pivot the A/C compressor towards the engine in order to relieve the tension on the belt.
  4. Remove the A/C compressor drive belt from the pulleys.

To install:
  1. Properly route and install the A/C compressor drive belt on the A/C compressor, the power steering (if equipped), and the crankshaft pulleys.
  2. Adjust the A/C compressor drive belt to obtain 6-9 mm (0.24-0.35 in) deflection.
  3. Tighten the A/C compressor mounting bolts to 13-20 f t. lbs. (18-28 Nm).
  4. Connect the negative battery cable.

Alternator Belt
  1. Disconnect the negative battery cable.
  2. Remove the power steering pump and the A/C compressor drive belt.
  3. Loosen the generator mounting bolts.
  4. Pivot the generator towards the engine and remove the accessory drive belt.

To install:
  1. Properly route and install the generator drive belt on the pulleys.
  2. Adjust the alternator drive belt to obtain 6-8 mm (0.24-0.32 in) deflection for a used belt or 5-6 mm (0.20-0.24 in) deflection for a new belt.
  3. Tighten the generator mounting bolts to 17 ft. lbs. (23 Nm).
  4. Install the power steering and the A/C compressor drive belt.
  5. Connect the negative battery cable.

Power Steering Pump Belt
  1. Disconnect the negative battery cable.
  2. Loosen the power steering pump mounting bolts.
  3. Pivot the power steering pump towards the engine in order to relieve the tension on the belt.
  4. Remove the power steering pump drive belt from the pulleys.

To install:
  1. Properly route and install the power steering pump drive belt on the power steering pump and the crankshaft pulleys.
  2. Adjust the power steering pump drive belt to obtain 6-9 mm (0.24-0.35 in) deflection.
  3. Tighten the power steering pump mounting bolts to 22 ft. lbs. (30 Nm).
  4. Connect the negative battery cable.

Posted on Apr 26, 2009

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dmfixit
  • 226 Answers

SOURCE: my idler pulley is making a squeaky light grinding niose.

belt dressing / new belt / but the grinding means the idler puller is going to grenade soon and you wont have any belt on it so go buy a new idler and change it right away or you risk the engine overheating by not turning the water pump .if it's grinding greasing the old one wont do much help .damage is already done in the bearing .and there sealed bearings . you just throw away the old 1.

Posted on Nov 19, 2009

  • 25 Answers

SOURCE: 1995 dodge ram 5.9liter V8 magnum

Could be a alternator bearing try removing the belt and spinning the alternator by hand.

Posted on Aug 11, 2008

  • 599 Answers

SOURCE: GET TENSION OFF THE IDLER PULLEY

loosen nut in center of idler pulley ..then loosen tension bar with 12mm socket til it walks away to remove belt

Posted on Jan 14, 2009

  • 4 Answers

SOURCE: 2008 Chevrolet Aveo5-Serpentine belt change

Stick a 1/2 inch ratchet or breaker bar into the square slot in the arm and turn.

Posted on May 16, 2009

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1 Answer

Noise whistling


check the idler pulley and tensioner I have seen this before coming from a idler pulley bearing on a Honda I sprayed some pb blaster/wd 40 on the center of the pulley and it stopped only for like 30 seconds but that's how I figured out which pulley was causing the noise


hope this helped

Aug 30, 2014 | Cars & Trucks

1 Answer

Squeaky noises under the hood


IT COULD BE AN IDLER, TENSIONER, OR THE BELT SLIPPING, THESE ARE SEALED YOU CAN'T LUBE THEM. IT SOUNDS LIKE THE BELT IS SLIPPING, BUT IT COULD BE SLIPPING BECAUSE OF A FAULTY IDLER\TENSIONER. REMOVE THE BELT, MAKE SURE ENGINE IS SHUT OFF, AND YOU HAVE THE KEYS, ROTATE ALL THE PULLEY'S AND THE ALTERNATOR PULLEY THEY SHOULD ROTATE FREELY AND RUN TRUE, AND NO ROUGH FEEL TO THEM, OR THE TENSION COULD BE TOO WEEK TO KEEP THE BELT TIGHT.

Jun 09, 2013 | 1996 Oldsmobile Bravada

2 Answers

Serpentine noise


the clutch and bearing assembly is failing it is a freewheeling pulley till clutch is engaged but it has bearings which can fail

May 09, 2017 | 1996 Plymouth Grand Voyager

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

1 Answer

Replace serpentine belt



Removal & Installation

  1. Rotate the drive belt tensioner clockwise and remove the drive belt.
    WARNING Never suddenly let go of the tensioned idler pulley. The force of the spring pressure suddenly released may damage the idler pulley mechanism. Always release the spring pressure gradually.


    0996b43f80204f01.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Rotate the belt tensioner to relieve tension on the belt-4.6L engine shown, others similar


To install:
  1. Route the belt over the pulleys making sure all the grooves in the pulleys and the belt line up correctly. Refer to the accessory belt routing section of this manual.
  2. Rotate belt tensioner clockwise and slip drive belt over idler pulley on tensioner.

  1. Rotate the drive belt tensioner clockwise and remove the drive belt.
    WARNING Never suddenly let go of the tensioned idler pulley. The force of the spring pressure suddenly released may damage the idler pulley mechanism. Always release the spring pressure gradually.


    0996b43f80204f01.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Rotate the belt tensioner to relieve tension on the belt-4.6L engine shown, others similar


To install:
  1. Route the belt over the pulleys making sure all the grooves in the pulleys and the belt line up correctly. Refer to the accessory belt routing diagrams above.
  2. Rotate belt tensioner clockwise and slip drive belt over idler pulley on tensioner.
If for any reason, the tensioner is crooked, replace it!!! Also, install the belt with the writing facing you like you are trying to read a book. This WILL (a trick I learned at Mercedes) prevent even a new belt from squeeling!!

Dec 16, 2010 | 2003 Ford Explorer

1 Answer

I need to replace the idler pulley/tensioner and the belt


When this idler wears out it makes a growling noise that changes with engine RPM. A Bad Idler Pulley May Wobble & Wear Out Your Serpentine Belt Prematurely. Get Rid Of That Horrible Noise & Change.

Remove the serpentine belt by using a breakover bar, ratcher or serpentine belt removal tool with the correct size socket for the pulley mounting bolt. Rotate tensioner arm to release tension. Remove the bel. Using the proper size socket, remove the tensiones mounting bolt and remove tensioner.

Before installing the new tensioner, make sure the mounting surface for the tensiones is clean and free rust or other obstructions. Find the locator pin hole and rotate the replacement tensiones until the locator pin and the hole line uo. Insert the pin into the hole. Reinstall the mounting bilt and torque down to tight fit.

Rotate the tensioner arm to install the serpentine belt. Make sure the belt is correctly fitted to all pulley in the drive system. Start the engine to check for any problems. Extreme care should be taken when reinstalling the serpentine belt because some of the pulleys are located in remote positions ans it is very hard to see that belt is seated properly in all of the grooves. If the belt isn't seated properly, the belt can "ride out" of the grooves and the belt can be damaged.

Also must review the ZJ Repair Manual Secc-7-Cooling-System for graphics references.

Hope helped with this. Remember rated this help. Good luck.

Nov 26, 2009 | 1996 Jeep Grand Cherokee

2 Answers

1994 Camaro making a noise


Yes, it could also be the tensioner or idler pully making the noise. I would remove the belt and try to turn each pully by hand and at the same time try to move side to side to locate this.

Sep 11, 2009 | 1994 Chevrolet Camaro

1 Answer

Whining noise


Could be a few things:

Belt slipping- adjusted through tensioning bolt on bottom of power steering pump

Pulleys- take off belt and hand turn pulleys. Find one that gives resistance and possible makes the whining noise. It's probably the idler pulley.

Feb 12, 2009 | 1994 Jeep Cherokee Country

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