When it starts leaking or stops working.
How do you replace the water pump and where is it located on a 1996 Buick Skylark V6
To replace the water pump in the 1995 Buick Roadmaster, begin by first removing the pins that hold the water pump drive to the water pump. Then, pry the timing cover off of the water pump area.
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how do you replace the fuel pump on a 1997 buick lesabre
How to install a waterpump on a 92 Buick road master
you have to take the timing chain off
If you put it on your self. The pump cost about $40.00
http://wiki.answers.com/Q/How_do_you_replace_the_water_pump_on_a_1996_Buick_le_Sabre"
https://www.youtube.com/watch?v=Xaz_tGOyhlw
Remove serpentine belt, alternator, and power steering pump. Remove 4 water pump pulley bolts. Remove water pump housing bolts. Remove water pump.
To replace the water pump in a 2004 Buick Century, start by disconnecting the battery and draining the coolant from the radiator. Remove the serpentine belt and any components obstructing access to the water pump, such as the alternator or engine cover. Once exposed, unbolt the water pump, clean the gasket surface, and install the new pump with a new gasket. Reassemble everything, refill the coolant, and reconnect the battery.
as a mechanic for a buick dealership id say if u have to ask your best bet is to bring it to a certified mechanic