If there is coolant coming from it and it isn't a hose.
The 2006 Chevy Impala water pump can be found on the front of the engine. You can follow the top radiator hose directly to the water pump.
Remove the belt from your 2005 Chevy Impala water pump. Remove the water return hose. Remove the water pump retaining bolts. Reverse the process to install the new water pump.
if you have a leaking water pump gasket i thing bay a new one is better
If the pump is leaking or noisy then assume it is failing.
Behind the water pump pulley. The pump is smaller than the pulley so the pulley hides it.
if it is not making any noise,or leaking from bottom of pump. Releif hole is on bottom of pump,if leaking replace pump.
long
Possible leaking hoses or water pump
When it starts leaking are making noise.
It is cheaper to replace it with a remanufactored pump.
A WATER PUMP ON A CHEVY IMPALA IS ABOUT $20-30 DOLLARS.The cost of installing it should be about 60-80 dollars,i have an 04 impala myself and i had to change mine they usually go bad at about 80,000 miles.
it's on the front of the engine block below the water pump