i have changed my water pump gasket twice now! still a leak. Cant see it when running. and only after it has been running for a min or two.in the four years we owned never was run hot. could it be warped or leaking at the shaft? and i cant get any heat in the vehicle since flushing cooling system, could it be a blockage in the heater core or is there a technique to get an air lock out?

THX

 

Did you replace the bypass hose?

Can you see where it is leaking?

Did you use RTV Copper (my favorite) gasket sealant as well as paper gaskets?

 

Is it a NEW or a REMAN pump?

I have my guesses.

IndyD