I have a 2000 Buick Century costom and I replaced it but it leaks what could be wrong
The best place to start is by figuring out what's wrong with it.
heater core stopped up, heater control vavle not working, controls under dash not working, low in coolant, theromstant, radiator not flowing properly, water pump.
When you let someone other than a car mechanic put them on.
The low pressure AC port on a 2000 Buick Century is located on the accumulator. It is used to fill the system with refrigerant and to check pressure levels.
its the cooling fan for the engine
They are threaded into the exhaust system at various points.
yes
The heater fuse on a 2000 Buick Century is located on the right side of the engine compartment, in a water tight box. It houses many of the major fuses for the vehicle's electrical system.
It needs to be checked out . There are many things that can go wrong.
your 2000 buick regal has a timing chain
Amazingkeys.com has the 2000 Buick LeSabre Key. It does have the chip in it.