Idling Noise on 2001 Dodge Grand Caravan

My car makes a loud noise when its idling in park or when I am stopped at a light. Any ideas?

Asked by for the 2001 Dodge Grand Caravan
Check the engine oil level first. After that the noise is very difficult to speculate as to its cause with out being able to hear it first hand. Could be anything from a cracked exhaust manifold, to a hydraulic lifter to more serious internal engine problems