Try either the bottom or rear of the radiator--perhaps hidden by lower hose
To replace a radiator on a 200 Buick Regal is not really that hard. You will need to remove all belts attached to the radiator and then unscrew the bolts that are holding the radiator. Make sure the car/truck has been off for a long period and the radiator is not hot.
your 2000 buick regal has a timing chain
how do you install front fog lens on a 2000 buick regal
If you do not see one on the bottom of the radiator one side or the other then it does not have one. You drain the radiator by removing the lower radiator hose.
I have a 2000 Buick Regal GS how do I change my front sway bar
2000 buick regal wiper pulse board /timing wipers
yes
Try rear side of radiator about 1/3 down from top
how do you fix timing on wipers 2000 buick regal
removal of rack and penion on 1999 buick regal GS
Instructions for replacing radiator on 2000 Buick Lesabre custom
1000 lbs according to edmunds. Link: http://www.edmunds.com/used/2000/buick/regal/100274235/specs.html