I need a serpentine belt diagram for a 2000 isuzu rodeo

go into auto zone and they will print you a copy of how to install the serpentine belt with pictures

from autozone.com

Buy the guide on it, it's like 20-30 bucks and that's all you'll ever need to know about problems and how to know what's wrong.

My sincere apologies for the delayed response.
I am personally going back to answer your unanswered questions.

I do not know if you still need this information, but I am going ahead and answering it anyway. You may want to Print the Diagrams for future use.

CLICK on the following 2 LINKS. They have the Serpentine and Timing Belt Diagrams you will need.
If you would: Before Clicking: Let me know if this helped you, or if you have any additional information or questions. Feel Free to contact me at FixYa.com!
Again my apologies:
For the Serpentine Belt:
http://www.2carpros.com/car_repair_information/year/1998/make/isuzu/model/rodeo/1998_isuzu_rodeo_drive_belt_routing_diagram.htm
For the Timing Belt:
http://www.2carpros.com/car_repair_information/year/1998/make/isuzu/model/rodeo/1998_isuzu_rodeo_timing_belt_diagram_marks.htm

All u need to do is put a wrench on the tention pully and turn it clockwise... this will relive the tention take off the old belt ....put on new one. repeat relive pressure again ...slip it on pully... and relese tention..... done! :)

there should be a diagram under hood, in front of radiator

there ya go!

Here you go:

Here is your diagram. Good Luck and say thanks..lol http://www.2carpros.com/car_repair_information/tec_info/2000/isuzu/rodeo/2000_isuzu_rodeo_drive_belt_routing_diagram.htm