There is usually a decal under the hood that shows belt routing?
I did find this picture.
If this one isn't exactly what you want, if it isn't go to Google images, type in what you need and you will get dozens of images that you can select from. Also, not sure if you need it but I am putting a video from YouTube about how to replace one of these with this type of motor.
Good Luck!
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/bryan_4d4c18793378ea97
SOURCE: serpentine belt replacement 1994 chevt silverado 5.7 lt
call your local autozone and the will tell you over the phone or fax you a copy
SOURCE: need diagram for instaalling serpentine belt on
Picture is for the carbureted model but has the same patter as my fuel injected model. It's actually pretty easy to see how it goes. If the pully has groves then the grove side of the belt will fit right in it prefectly. If it's smooth then the back side of the belt with run along it. To loosen the belt tensioner do two things. first in the picture below you will see in the top middle you will see the tensioner. The back of the belt runs along it. You will notice that it looks like a solid peice. loosen the top slighty with i believe a 15mm. After that connect to the pully attached to it and pull back to the passenger side until you can slid the belt off the alternator. put back on in reverse order. really really simple once you do it. good luck
SOURCE: I need the serpentine belt diagram for a chevy Express Van
DRIVE BELT DECAL SHOULD BE UNDER THE HOOD.OR YOU CAN GO TO DEALERSHIP GET ONE AUTO ZONE OR ADVANCE AUTO PARTS CAN GET YOU ONE.OR YOU CAN BUY A HAYNES REPAIR MANUAL IT HAS BELT DIAGRAM.
SOURCE: routing diagram for a Chevy G20 serpentine belt?
Okay, there are a few engines that come in this van, lucky there the same except,they come with or without ac or airpump, so i will give you all of them and you choose the right one.
Park the Pontiac in a safe work area and open the hood.
Inspect the top of the black plastic cover that surrounds the fan for the serpentine belt routing diagram. This diagram has the instructions for installing the new serpentine belt around the accessory pulleys.
Inspect the front of the engine and locate the automatic belt tensioner. The tensioner on the 1999 Pontiac model vehicles is located between the alternator and the crankshaft pulley. The tensioner has a pulley on one end with a bolt head in the center of the pulley. Use the bolt head to rotate the tensioner.
Turn the tensioner counterclockwise with the breaker bar and a metric socket. Pull the belt out from under the tensioner pulley with your other hand. Then, slowly let the tensioner retract until it stops.
Pull the belt out of the other remaining pulleys. Then, pull the belt out of the engine bay and lay it on the ground.
Route the new belt around the crankshaft pulley. Then, route the new belt around the other remaining pullleys by using the serpentine belt routing diagram for instructions.
Rotate the tensioner pulley counterclockwise with the breaker bar and socket. Then, slide the new belt under the tensioner pulley. Slowly let the tensioner retract until it stops. The tensioner pulls all of the slack out of the belt and brings the new belt to the proper tension. Remove the breaker bar and socket from the tensioner pulley.
Inspect the new belt to ensure that it is seated inside of all the accessory pulleys as directed by the diagram. Then, crank the engine and allow it to run for about 15 seconds. Turn the engine off. Inspect the belt again once more to ensure that
the belt is still around each pulley. Close the hood.
Turn off the engine and place the transmission in park (automatic) or first gear (manual). Engage the parking brake and open the hood. Disconnect the negative cable from the battery terminal using the battery terminal wrench.
Remove the serpentine belt by inserting the end of the serpentine belt tool into the square hole on the belt tensioner and rotating the removal tool clockwise. Unplug the alternator's electrical connector. Remove the bolt holding the positive voltage cable to the alternator using a 3/8-inch ratchet and a metric socket. Remove the positive voltage cable from the alternator.
Remove the alternator bracket bolts using a metric socket connected to a 3/8-inch ratchet. Remove the alternator from the car. Place the new alternator in the mounting brackets and reinstall the mounting bolts using a 3/8-inch ratchet connected to a metric socket.
Reinstall the positive voltage cable on the alternator and tighten the retaining nut using a 3/8-inch ratchet and a metric socket. Plug in the alternator's electrical connector. Compress the serpentine belt tensioner using the serpentine belt tool. Reinstall the serpentine belt according to the belt-routing diagram located under the hood.
Reconnect the negative cable to the battery using the battery terminal wrench. Start the engine and verify that the alternator works.
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