Belt routing diagram for 1984 Chevy G20 van 5.0 with multiple belts

you did not specify what engine.
google 2009 chevy impala serpentine belt Diagram


copy and paste

https://www.justanswer.com/chevy/3ruw6-need-serpentine-belt-diagram-2006-chevy-3-5-lt.html

https://www.fixya.com/cars/t15630016-diagram_serpentine_belt_2009_impala_3_5l

• A charging system "V" belt and a Power Steering Pump "V"belt. The size depends on AC or not and weather or not it is a manual transmission. I have provided a link for you so you have a place to order your belts from if you so choose. You can also see the belts you need.

• http://www.importautopart.net/1985,CHEVROLET,G20-SPORTVAN,1045998;Belts/

Regards, Tony

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.

Helllo there:
Simply click on the links that i have provided and the routing diagram will be there ok


2001 - 2001 CHEVROLET CAVALIER - L4 2.2L 134ci CNG FI N 5
Belts / Tensioners / Pulleys Part Number Description 5050630
Belt Routing Diagram Multiple Accessory, w/o A.C. 5050888
Belt Routing Diagram Multiple Accessory, w/A.C.

hello there:
Just click on the diagram links beloiw for your model
5060970
Belt Routing Diagram Multiple Accessory, w/o A.C. (Mfg. After 2/27/91) 5060980
Belt Routing Diagram Multiple Accessory, w/A.C. (Mfg. After 2/27/91) 5060990
Belt Routing Diagram Multiple Accessory, w/o A.C. (Mfg. Before 2/27/91) 5061000
Belt Routing Diagram Multiple Accessory, w/A.C. (Mfg. Before 2/27/91)

You didn't list your motor size so please pick the applicable diagram:


Accessory serpentine belt routing—4.8L, 5.3L & 6.0L engines


Accessory serpentine belt routing—5.7L engines with A/C


Accessory serpentine belt routing—5.7L engines without A/C


Accessory serpentine belt routing—6.5L Diesel engines


Accessory serpentine belt routing—7.4L engines


Accessory serpentine belt routing—8.1L engines

here are 4 diff. type of diagram.
Depend on how many pulley you have.
Let me know if this help you.

there should be a diagram sticker under the hood . first thing check to make shure all accesories move freely no locked pullys that may have shot the belt to begin with

hardest part is to remember how to rout the belt theres a place u can put a 1/2 inch or 3/8 ratchet on the tensior to make the belt slide offf