I have a 1998 buick century with 3.1 engine.,with water leak

SOURCE: Heater/AC Fan does not work in our 1998 Buick Century

Fan will be under dash on passengers side , Removing glove box might be needed, Gm also uses a blower resister ro control fan speeds. First check your fuse and then check and make sure your getting 12 volts to the terminal at the blower, You could have a blown fuse, a bad switch, or a bad resister , if your getting voltage to blower motor then most likely it will be the motor. These are not to difficult to change. I hope this helps, please be aware I can only guess at what the problem is from my past experience.

SOURCE: 1999 Buick Century thermostat question.

patience , and a 13 MM wrench , you gotta get your arms in there deep , that lower bolt does not need to come all the way off , the thermostat housing has a slot at the bottom for easier access , loosen it about 3.4 of the way and you can get the housing out , experience says a premium thermostat will give you grief trying to reinstall , get a regular duty thermostat .reverse procedure.

SOURCE: STEREO WIRE CODES DIAGRAM FO A 1998 BUICK CENTURY

need codes to hook up radio to 1999 buick century

Dave C

• 1050 Answers
• Posted on Mar 17, 2009

SOURCE: removing water pump 98 buick park avenue

You need to poke a small extension with a 13mm socket through the holes in the power steering pulley, undo it, and slide it back.

SOURCE: coolant leak 1998 buick external

it sounds like the water pump may be leaking beacuse when runnung the seal is lubricated and may not be leaking at that time but when left over night the seal in the water pump contract and starts to leak. check for stains and leaks with a mirror before starting in the morning i think you will find that it is leaking. don't worry they are not bad to change. good luck