Could Be Water Pump Bypass Hose. Not Knowing The Vehicle Or Engine You Have. Suggest You Have A Mechanic, Or Radiator Shop Pressure Test Your Vehicle. That Will Give You More Information.
the alternator is located under the inlet manifold
The alternator is located behind the engine and almost directly below the intake manifold.
Changing an alternator in a northstar requires removing the intake manifold,as it is under there. I would suggest getting a service manual for all the details. Good luck Almost but not quite true. Under the intake manifold is the starter not the alternator!!!
If it is like a 1989 saab 9000, you remove the front passenger wheel, remove all the plastic from the wheel well, and the alternator should be rite there. You can also get to it by removing the manifold, which allows much easier access to the alternator, but then you need a new manifold gasket.
Behind the exhaust manifold, next to the alternator.
Yellow jacket
You have to remove the intake manifold to take it out the top.
It is located at the front of the intake manifold between the A/C compressor and the alternator
It is between the alternator and the AC pump in the intake manifold.
Remove the intake manifold and take it to a welding shop that works with aluminum. Let them determine if it can be saved or not.
it's in the back of the engine below the manifold and under the air box tube.
It is mounted underneath a bracket in front of the alternator on the side of the intake manifold.