Why is my dodge ram van leaking coolant?

Could it be that the water pump needs to be replaced? When the van is parked and shut off it completely drains the radiator,after sitting a period of time. This is a dodge ram 2500 1997 van.
 
easy to check water pump
lay down on ground under front and with a light look up see a wet spot its leaking check your hoses easy to just look for wet spots
 
Back
Top