Hello I have a 1997 GMC K1500 5.7L. I have a coolant leak coming from the driver side area behind the power steering reservoir. I have tried finding it with a flashlight and swivel mirror but cant see the source. I originally assumed it was the water pump and replaced my water pump. The leak is still present however. I have checked the hoses and water pump gaskets and none are leaking. Any advice on where it is coming from would be helpful.