Losing Water

[CrisZ03]

When I put water in my car after a few hours it goes low. I have tightened all the hoses and it is not losin pressure. I pressureized the cooling system and there were no leaks. I did a head gasket test, and I am sure it isn't going out the exhaut. I replaced the radiator cap and the upper filler neck, but the water is still disapearing.

The car is a 95 eagle talon AWD if it makes a difference.

 

[theSicKness]

I would check to make sure the "Weap" holes in your water pump arnt leaking..(small holes on the bottom of the shaft when they leak the seal in your water pump has gone bad).


Jesse

 

[CrisZ03]

if i pressurized the system shouldn't it have leaked out of the seals if they were bad?

 

[luv2rallye]

Well it has to be going somewhere. This isn't the normal sucking it back in (from bottle) when cooling off after replacing the coolant is it (due to system wasn't burped so there's still air in system that's being displaced)?
Feel around water pump for wetness as he says. Did you check in the oil? Is it a slow leak so it is hard to detect? You could replace the coolant with a red antifreeze colored one to help see it. Try the hand pump pressurizer again and pump up to 16lbs and wiggle all hoses. Place hand around each water hose connection to see if it's wet. Also around water non hose connections like the gasket on thermostat housing. Can also start engine and do same. Very slow leaks sometimes have to be felt because you can't see them. Also can try having someone rev engine while looking.