I have a 1995 camero with a 3.1 litr v6 engine , when I start it up it leaks oil bad , some one said it is the oil sending unit , I cannot find this , anyone know where it is ? I know it is by the manifold , when the car is not running it dosent leak. any help would be appreciated .

 

Trace the leak and see where it is coming from. There is no way to tell without finding the origin. Give us a place on the engine, and we can tell you what it is that is leaking.

 

could be the crankcase seal, it would only leak when running because the crankshaft is stirring it up and heating the oil.

 

kind of a old tread..BUT it could be coming fromt he oil filter..my dads truck's oil filter came lose..it leaked like hell from it!