Water leak??

[trailblazr81]

So the other morning theres a small puddle of water under my Yukon. I check and the radiator is a little low. I drive around that day get home and nothings dripping. Check an hour later no puddle and radiator level is the same. Come out this morning and theres a small puddle and radiator is again a little low. Radiator n hoses look good. Could this be from the pump??

 

[SunlitComet]

I say a gasket some where. It seems to happen when cold and metal contracts when cold opening up gasket leaks if it was the pump shaft seal it would of leaked under pressure like hoses so I say either a gasket/seal on the back of pump or some where else. Or even the reservoir assembly.

 

[trailblazr81]

OK. The puddle is under the front of the engine.

 

[SunlitComet]

Get an inspection mirror or boroscope and probe underneath and behind water pump. I could be wrong about shaft seal.