Unable to get to the serpentine belt on my 04 Chevy Tracker

Question edited for clarity.
Question moved to sub category.

You order them to the vehicle, not by size. The three belts are here with the OEM Parts numbers. Parts suppliers have a book with all the makes, models and years, and that book tells them the length, width and form, (ribbed or plain).
https://www.partsgeek.com/catalog/2004/chevrolet/tracker/drive_belts/accessory_drive_belt.html

You can also pick them up from Walmart, or eBay.

https://www.google.com/search?q=2004+Chevy+Tracker+LT+2.5L+V6%2C+serpentine+belt+size

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Jerald, You will have to remove the the accessory belt first I believe by putting appropriate wrench on tensioner and pulling tensioner toward passenger side to allow removal of the belt. Then you will loosen alternator to let tension off fan belt and replace the fan belt. Reverse procedure to install. Check the attached links,instruction and guides, Good luck
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2002 Chevy Tracker 2 0L 2 5L Serpentine Belt Diagram serpentinebelthq com
https://answers.yahoo.com/question/index?qid=20060822210207AA9Tfgo
chevy how belt tensioner works Google Search

How-To Replace The Serpentine Belt On A Chevy Tracker ...

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www.youtube.com/watch?v=sXLTZzEZdSU
Oct 28, 2014 - Uploaded by Deo Ole
How-To Replace The Serpentine Belt On A Chevy Tracker ...2001 Chevy Tracker V6 2.5L Head Instal and Timing Chain Instal - Duration: ... XL 7 2.7L Air conditioning compressor removal and smaller belt installed - Duration:

bring it to an auto parts store-they can help titen it at the tensioner--may need a new one

http://www.2carpros.com/diagrams/geo/tracker/2002

It is either bolted in place or it has a spring that can be released with a belt tensioner tool you get at an auto parts store. You might can use a 1/2" brakeover bar.

For the 2000 Chevrolet Tracker:

Most modern vehicles have the Belt Routing Diagrams on the undeside of the Hood. But the sometimes disappear.

I do not know if you have the 1.6L In-Line 4-Cylinder, or the 2.0L DOHC In-Line 4-Cylinder. Nor what Engine Options you have (AC/No AC, etc.).

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

http://www.2carpros.com/car_repair_information/year/2000/make/chevrolet/model/tracker/2000_chevrolet_tracker_drive_belt_routing_diagram.htm

First, keep this diagram around as you will need it to route the serpentine belt when you reinstall it. There may also be a diagram under the hood by the radiator.
Next, follow this link and watch the video that shows you how to replace a serpentine belt...
http://www.wonderhowto.com/how-to/video/how-to-inspect-and-replace-your-car-s-serpentine-belt-267229/

With AC, I hope.