Idler pulley burning belt rubber. idler bad?

How to replace drive belt tensioner Toyota Camry - YouTube

? 4:26
https://www.youtube.com/watch?v=gfSJvN-CE2E
Feb 22, 2013 - Uploaded by Fix It Angel
2002 2003 2004 2005 2006 2007 2008 2009 Toyota Camry. Engine, 4 cylinder, 2.4L, 2AZ-FE. 2004 Toyota ...

Idler Pulley, How to replace (EASY and CHEAP) - YouTube

? 4:56
https://www.youtube.com/watch?v=axAltpW8wR4
Nov 2, 2013 - Uploaded by ChrisFix
Idler pulley squeak? Learn how to fix a squeaky pulley in your car. The serpentine belt in your car powers the ...

2007 Camry Serpentine Belt Replace - 4 Cyl, 2.4 liter ...

? 4:21
https://www.youtube.com/watch?v=ejhyCrh96a8
Jan 13, 2013 - Uploaded by Flyin Brian
I show you step-by step how to get the old belt off and install a new ... ... Water pump replacement 2007 Toyota ...

If you take the belt off and there is no noticeable in/out, up/down, or side to side movement of pulley and there is no noise when rotating, a new belt may be all you need. Make sure you check ALL of the other belt driven components including idler pulleys and belt tensioner pulley. A worn tensioner can squeak also.

Application:
With A/C

Kia_Sedona_2002-2006
Accessory Drive Belts

• ACCESSORY BELT ROUTING
• INSPECTION
• REMOVAL & INSTALLATION

Print

Accessory Belt Routing

Fig. Accessory serpentine belt routing-3.5L engine

Fig. Accessory serpentine belt routing-3.5L engine

Fig. Accessory serpentine belt (A) routing-3.8L engine

Inspection

Inspect the drive belt for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. All worn or damaged drive belts should be replaced immediately.

Removal & Installation

1. Disconnect the negative battery cable.
2. Rotate the auto tensioner clockwise to release tension, then remove the drive belt.

To install:

1. Install drive belt (A). Route the belt over the components in the following order: Crankshaft pulley - A/C pulley - idler pulley - generator pulley - water pump pulley - P/S pump pulley - tensioner pulley.
2. Rotate auto tensioner arm in the counter-clockwise moving auto tensioner pulley bolt with wrench.
3. After putting belt on auto tensioner pulley, release the auto tensioner pulley slowly.
   
   

   Fig. Accessory serpentine belt routing-3.5L engine
   
   
   

   Fig. Accessory serpentine belt (A) routing-3.8L engine
   

YOU HAVE TO REMOVE TIMING BELT AND IDLER PULLEY.YOU NEED TO REPLACE TIMING BELT WHEN YOU REPLACE WATER PUMP.TO REPLACE WATER PUMP. DRAIN COOLANT SYSTEM.REMOVE UPPER RADIATOR HOSE.REMOVE TIMING BELT AND IDLER PULLEY.UNBOLT AND REMOVE THE WATER PUMP.CLEAN ANY GASKET MATERIAL OR SEALANT RESIDUE FROM THE WATER PUMP MATING SEALING SURFACES.WHEN INSTALLING NEW WATER PUMP BESURE TO USE A SEALANT ON BOTH SIDES OF WATER PUMP GASKET TO KEEP IT FROM LEAKING COOLANT.TORQUE WATER PUMP BOLTS TO 13 FT LBS IN A TWO STEP CRISSCROSS SEQUENCE.INSTALL THE IDLER PULLEY.TIGHTEN THE MOUNTING BOLT TO 31 FT LBS.INSTALL AND TENSION THE TIMING BELT.INSTALL THE UPPER RADIATOR HOSE.REFILL BLEED THE COOLANT SYSTEM.

Has it just started with cold weather? Does it squeal at first then as the engine is revved, stop squealing.

If so its probably your alternator belt has worked loose and needs tightening. I'd check this out first, if you've not done it before ask a friend with some know how for guidance. But as a guide, there should be about an inch of give when flexed on the longest run between 2 pulleys, if more then probably needs tightening. If more than a couple of years old, replace with a new one.

If it still squeals after tightening/replacing, you could have a faulty water pump bearing or pulley bearing. Either would require replacement to pre-empt catastrophic failure and resultant engine damage.

if the belt is dry replace it to for it will squeak as well.
also a glaze can be on all pulleys so wire brushing them all will clean the glaze off and eliminate the squeaks too

BELT TENSIONER TOO WEAK.CAUSING BELT TO SLIP AND SQUEAK.OR YOU HAVE FLUID LEAK GETTING ON BELT OR YOU HAVE WORN GLAZED PULLEYS THEY WILL SQUEAK.

did you use the same pulley on the pump? sometimes a glaze forms on the contact surface for the belt. use 400 grit sandpaper to remove any glazing. also the belt may be glazed from the old pump being bad. maybe even contaminated with oil. remove the belt. clean well with brake cleaner, deglaze pullys, then install new belts. while the belts are off its a good time to check the berrings on the alternator, tensioner, idler and waterpump pulleys. just spin them, then try to wiggle them. if theres any rough or dry sound while spinning then they need to be replaced

Kia Sorento 2003-05
Water Pump - Removal & Installation

1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
2. Drain the cooling system.
3. Disconnect the negative battery cable.
4. Remove the drive belt and the water pump pulley.
5. Remove the timing belt cover, timing belt, auto tensioner and idler pulley.
6. Remove the water outlet fitting, the thermostat case and the water pump fitting.
7. Remove the water pump mounting bolts.
8. Remove the water pump.
   



Fig. Water pump and timing belt assembly-exploded view

To install:



Fig. Water pump bolt locations

1. Clean the gasket surfaces of the water pump body and the cylinder block.
2. Install the new water pump gasket and pump assembly. Tighten the bolts to 12-16 ft. lbs. (17-22 Nm).
3. Install the water pump fitting, the thermostat case and the water outlet fitting.
4. Install the auto tensioner and timing belt. Adjust the timing belt tension, then install the timing belt cover.
5. Install the drive belt, water pump pulley and then adjust the auto tensioner.
6. Refill the coolant.
7. Run the engine and check for leaks.

1. Before servicing the vehicle, refer to the Precautions Section.
2. Drain the cooling system.
3. Disconnect the negative battery cable.
4. Remove the drive belt and the water pump pulley.
5. Remove the timing belt cover, timing belt, auto tensioner and idler pulley.
6. Remove the water outlet fitting, the thermostat case and the water pump fitting.
7. Remove the water pump mounting bolts.
8. Remove the water pump.

To install:




Fig. Water pump bolt locations



Fig. Water pump O-ring installation

1. Clean the gasket surfaces of the water pump body and the cylinder block.
2. Install the new water pump gasket and pump assembly. Tighten the bolts to 12-16 ft. lbs. (17-22 Nm).
3. Install the water pump fitting, the thermostat case and the water outlet fitting.
4. Install the auto tensioner and timing belt. Adjust the timing belt tension, then install the timing belt cover.
5. Install the drive belt, water pump pulley and then adjust the auto tensioner.
6. To adjust the drive belt tension, hang the belt on the pulley of the tensioner and install the tensioner.
   NOTE If the tensioner is already installed, loosen its mounting bolts to allow belt installation
   
7. Install the drive belt.
8. Adjust the belt tension to specification by turning the adjusting bolt clockwise or counterclockwise.
9. Air conditioning belt tension should be 0.28-0.039 inch. Alternator belt tension should be 0.39-0.051 inch. Power steering belt tension should be 0.31-0.051 inch.
10. Torque the tensioner assembly bolt to 33-36 ft. lbs. (45-50 Nm).
11. Refill the coolant.
12. Run the engine and check for leaks.

TY for using Fixya; remember comment and rated this.

Once the belt is removed, the center bolt from the idler pulley should unscrew normally with a socket. The replacement pulley bolts back in with the same bolt, then just put the belt back on. The bolt should be very snug, but do not overtighten ir it will shorten the life of the idler. As tight as you can get it with one hand using a typical 3/8" ratchet should be adequate. There should be a belt routing diagram on a sticker under the hood. Belt removal and reinstallation is achieved by using a 3/8" drive ratchet or breaker bar to engage the square hole on the spring loaded tensioner arm and flex it clockwise on most engines. On other GM engines, placing a socket on the center bolt of the tensioner pulley and turning clockwise will flex the tensioner to loosen the belt. When you have the belt off, check all pulleys for smooth rotation and listen for squeaking. If any of them bind or squeak, they should be repaired/replaced as well. Installing a new belt is also a good idea when replacing the idler.