For starters, my anti-freeze is slowly leeking...from about the middle of the right side of the engine...and i don't know what thats all about.

And my service engine soon light is on, i checked the codes, they are :

PO336 : Crankshaft Position Sensor A

and PO336pd, w/e that means. >_>

Any ideas?

P0336 is the main crank sensor (24X) at the crankshaft behind the harmonic balancer pulley. The pd is a pending code but the same.

Coolant leak could be the lower intake manifold gasket which is a common problem on Aleros with the 3.4L V6.