Leaking Heater Valve
Thread Starter
Intermediate
Joined: Mar 2007
Posts: 30
Likes: 0
From: Coastside California
Leaking Heater Valve
I've got an '81 that always needs coolant. I have to add a quart of new coolant after a few times of running the engine. To make a long story short, after checking all the hoses and tightening them, I discovered a dripping puddle of fresh coolant right under the heater water valve. A quick check confirmed the source location.
I went out and bought a new valve, but see that the new one has what appears to be drain holes at the bottom of the valve. I'll be installing it tomorrow night, but my question is this, are those holes what I think they are, and does that mean that my original valve is actually working (so my problem is elsewhere and I just spent $40+ to replace a working part)?
I went out and bought a new valve, but see that the new one has what appears to be drain holes at the bottom of the valve. I'll be installing it tomorrow night, but my question is this, are those holes what I think they are, and does that mean that my original valve is actually working (so my problem is elsewhere and I just spent $40+ to replace a working part)?
Melting Slicks
Joined: Mar 2009
Posts: 3,126
Likes: 15
I have a plastic valve on the shelf that has vent holes around vacuum diaphragm housing that let in air so diaphragm can move. Are these the holes yours has? There should not be any coolant leaking from these holes. The shaft seal has probably failed allowing coolant to leak from the vent holes. Good luck, mike...
