Will begin with the small stuff first. Have already changed out the reservoir and still loosing level so I want to do the hoses next. Can someone provide me with a schematic which shows all the hoses which contain water flowing through them? I want to change out all the hoses. Next will be troubleshooting the water pump. My suburban has 175K miles on it. thanks - joe.

 

Welcome to the forum Joe,
when you say loosing water you mean coolant right?

 

Four main hoses w/ coolant are the upper and lower radiator hoses and the two heater hoses. Others might be transmission and oil cooler lines. And hose to the reservoir.

 

If ur water pump hasnt been changed it could be that, They have overflow holes built in when they brake. try checking that

 

See if you can get a hold of a pressure gauge set and push some air throughout the system to see where its seeping out of. Or just determine where its coming from while its running if the leak isn't huge. If its the waterpump, you will see out of the weep hole located on top of it (little hole) water coming out of it.