Installing a serpentine belt and there is no diagram sticker

hello there should be a sticker that has diagram of the installation of the serpentine belt gone google it

Easy job on those vehicles. Usually need a wrench that fits over the belt tensioner, and you raise or lower it, taking tension off the belt. then just slip it off the nearest pulley-often the alternator pulley. Now you can let go of the tensioner and remove belt. Notice how it is fit. There should be a diagram on a sticker of how the belt fits on.

The serpentine belt routing diagram should be under the hood of the car. It will be either a black and white sticker or a yellow and black sticker.

Are you asking how to install a .....diagram or how to install the belt?

There should be a diagram sticker on the hood or the fan shroud.
You can also draw a diagram before you remove the old belt.
There is a spring loaded tensioner you move over to release pressure on the belt.
I can upload a diagram if you can't find the sticker.

1. 1 Check to ensure the Sienna's engine is cold, then make sure the Sienna is in park, the ignition is in the off position and the key is removed from the ignition to prevent any possibility of the engine engaging during the serpentine belt replacement.
   
2. 2 Open the hood and locate the serpentine belt routing diagram sticker on the side of the engine casing. Study it for a moment before removing the existing belt. It is essential the new belt be installed exactly as the diagram indicates.
   
3. 3 Find the tensioner pulley, the main pulley that controls the serpentine belt, and fit a 1/2-inch socket wrench over the self-tensioner on the outside of the pulley.
   
4. 4 Pull the wrench to the left to move the pulley forward, which loosens the belt, then remove the belt.
   
5. 5 Compare the old serpentine belt with the new, replacement belt for length, width and number of grooves on the belt's underside. Be certain the replacement belt is the right part.
   
6. 6 Fit the new belt on to each pulley according to the serpentine belt routing diagram on the manufacturer's sticker, or according to the drawing made prior to removing the old belt. Fit the new belt on to the tensioner pulley last, again applying pressure on the pulley's self-tensioner with the half-inch socket wrench to loosen the pulley.
   
7. 7 Release the pressure on the self tensioner and allow the tensioner pulley to ease back into place, thereby tightening the new serpentine belt with the appropriate tension.
   
8. 8 Remove the wrench and close the hood.
   

Thank you and good luck,
Lee

The diagram should be there under the hood, look for a white sticker up on the hood or down along the fan shroud.

look around under the hood , on the underside of the hood, sometimes the belt routing diagram is on a sticker also check a Chiltons Manual sold at auto pARTS STOReS or on the web

The belt installation diagram is under the hood, look on the shock tower or over the radiator next to the Federal emissions certification sticker.