I have a 4.3L vortec that is pooring water from under/behind the bracket that holds on the a/c compressor.

When the engine is not running, it will leak when the radiator is topped off down a couple of inches to the point below where it is exiting the engine. (hope that makes sense)

When the engine is running and the gas is pressed, water sprays out, emptying the radiator quite quickly.

When the engine is running and the radiator cap is off it sprays slower, I'm going to say due to lack of pressure.

I only kind of an idiot when it comes to cars so I'm just wondering what is under the compressor that will push all the water out in 45 seconds.

Thanks for anything you can tell me.

 

From your description I would say you have either a leaking intake manifold gasket, a leaking upper radiator hose, or leaking thermostat connection. A coolant system pressure test would be the simplest way to find it.

 

Thanks, but I think it is to low to be the manifold gasket. The upper radiator hose was the first thing I replaced, and I think the thermostat is on the right side of the engine, but please correct me if I'm wrong. I will get a system pressure test anyway. Thanks again.