2000 Toyota Sienna serpentine belt Replacing?

The details are as follows.Serpentine belt also known as drive belt or Accessory belt.
Belts are made of reinforced synthetic and/or hard rubber, belts are usually v-channeled or ribbed serpentine They're used to drive accessories including the alternator, water pump, AC compressor, power steering, air pump, vacuum pump and injector pump. They're usually driven by the engine's crankshaft pulley and are fully adjustable by tensioners or idlers that follow or track the surface of the belt.
The diagrams are for both,with and without AC models.The belt tension should be absolutely right.Not too loose or over tight.Adjust the belt tensioner correctly.Also inspect that all pulleys from where belt routes ,are proper and not worn out.

The belt route diagrams is as follows :-----

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. Before servicing the vehicle, refer to the precautions section.
2. Loosen the pivot bolt and adjusting lock bolt.
3. Remove the drive belt.

To install:

1. Install the belt and tighten the pivot bolt to 41 ft. lbs. (56 Nm) and the adjusting bolt to 13 ft. lbs. (18 Nm).
   
   
   

   

   Fig. Drive belt bolt locations-3.0L engine

1. Before servicing the vehicle, refer to the precautions section.
2. Remove the right hand front wheel and apron seal.
3. Remove the A/C compressor to crankshaft pulley belt by loosening bolts A and B, then loosen adjuster bolt C and remove the belt.
4. Remove the vane pump belt by loosening bolts A and B, then remove the belt.

To install:

1. Install the vane pump belt and tighten the bolts to 32 ft. lbs. (44 Nm).
2. Install the A/C compressor to crankshaft pulley belt over the pulleys. Tighten adjuster bolt C to adjust the belt tension.
3. Tighten bolt A to 43 ft. lbs. (58 Nm) and bolt B to 13 ft. lbs. (18 Nm).
4. Install the apron seal and front wheel. Tighten the wheel nuts to 76 ft. lbs. (103 Nm)
   
   
   

   

   Fig. A/C compressor to crankshaft pulley belt bolt locations-3.3L engine
   
   
   
   

   

   Fig. Vane pump pulley belt bolt locations-3.3L engine

This detailed diagrams will help you.
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If you need dis-assembly or replacement instructions for any other auto/car part, or you want to ask question related to your car/truck jeep problem then please leave the comment with your details, so I can provide you therequired instructions and solutions.

Timing belt routing diagrams for cars and trucks? Click the link below:---http://technoanswers.blogspot.com/2011/10/timing-belt-routing-diagrams-for-cars.html

Drive belt routing diagrams for cars and trucks? Click this link below:---http://technoanswers.blogspot.com/2011/10/drive-belt-routing-diagrams-for-cars.html

How to route the serpentine belt?

http://carbeltrouting.blogspot.com/2011/12/how-to-route-serpentine-belt.html

Drive belt came off while driving?

http://carbeltrouting.blogspot.com/2011/12/drivebelt-came-off-while-driving.html