The first sign will probably be that the car overheats. No coolant circulating = hot motor. This is a bad thing.
If you can hear any noise from the pump, (clicking, squealing) it's probably on it's way out.
If you can grab the pulley, shake it back and forth and in and out. Any play usually means it's failing.
If you can get at your radiator cap, with the car dead cold, remove the cap. Start the car and look into the radiator fill pipe. You should see coolant circulating briskly. If you don't, the pump is probably dead, or nearly so.
Overheating can mean that you are loosing coolant somewhere. I can be from the pump. It can also be from the reservoir or a hose connection. With the car at operating temperature, check for any coolant or steam escaping from the reservoir, the hoses and their connections. Turn the car off and take a few minutes to watch for leaks again. When the car has been turned off, the temp and steam pressure can increase and cause leaks that you can't see when it's running.
Tighten connections and/or replace hoses as is necessary.
If all else fails, take her to your mechanic for a diagnostic.
FriPilot
nope.
Usually right above and in line with the crankshaft pulley
Yes
the oil pump is located inside the oil pan housing.
you will get a hint when the car begins to lose power, start to sputter, or even stall.
If the part number is the same and the configuration is the same then sure.
Off the water pump
in the fuse panel on the left side of the dash
You haven't asked a question. What can we help you with, exactly?
Pay a mechanic to replace it
As the pump is mounted inside the tank, it looks like the connectors are on TOP of the fuel tank (which has to be removed to replace the pump) FriPilot
The pump mounts from the top of the tank. This means that the tank must come outof the car to replace the pump.