heater core vacuum check valve?

[RAM1961]

I have a 90.5 Bounder with 460 EFI. Fired it up tonite to go wash it and notice a puddle of antifreeze forming in front of front passenger tire. Opened up front end and there's plastic valve with two lines from the radiator and two lines from the heater core (I think that's what this in passenger side corner in front of radiator). Has one wire attached to this diaphragm valve or something - and that's where it was leaking out of. Not even sure what that piece is called but it appears to be some sort of vacuum check valve? I have pics, but not loaded onto internet and not sure how to post it here otherwise.

Is this an easy to find part?

[subford]

You can email me the photos and I will post them here for you.
My email address is at the bottom of this post.

But if that is a electric wire to it then it sounds like a solenoid valve.
Are those vacuum or water hoses going to it?
I would bet they are engine coolant hoses.
The vacuum lines most of the time just controls the vent doors.

[ga traveler]

This is your hot water shutoff valve. It turns off the hot coolant when you operate the A/C. You will have to run the engine and look to see if it the valve leaking(most likely) or the hose clamp leaking.

[RAM1961]

Quote:

Originally Posted by subford You can email me the photos and I will post them here for you. My email address is at the bottom of this post. But if that is a electric wire to it then it sounds like a solenoid valve. Are those vacuum or water hoses going to it? I would bet they are engine coolant hoses. The vacuum lines most of the time just controls the vent doors.

Yes, it has four engine coolant hoses connected to it. Two from radiator side, two from heater core side. It was leaking out the bottom of the valve diaphragm. Found identical part on ebay when I searched for "heater control valve".