All the Buick owners manuals (1993 - 2007) in pdf format are currently available here:
http://www.extendedgmwarranty.com/owners-manual/buick_owner_manuals.html
Please note: I am not associated with this website in anyway... was searching for the same manual myself and came across the above link and thought it might help someone else in the future.
your 2000 buick regal has a timing chain
how do you install front fog lens on a 2000 buick regal
I have a 2000 Buick Regal GS how do I change my front sway bar
yes
2000 buick regal wiper pulse board /timing wipers
how do you fix timing on wipers 2000 buick regal
removal of rack and penion on 1999 buick regal GS
1000 lbs according to edmunds. Link: http://www.edmunds.com/used/2000/buick/regal/100274235/specs.html
Where_do_you_add_freon_on_a_2000_buick_regal
yes
its beyond of the air filter.
Its located in the air intake