The radiator cooling fan will run to cool the radiator to below the fan turn on temperature. You may want to have your cooling system checked if it happens regularly as your Buick may be running hotter than normal when driving.
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
yes
Where_do_you_add_freon_on_a_2000_buick_regal
its beyond of the air filter.
Its located in the air intake