| Subject: | '91 rear heater leak only when heater 'off' |
| From: | Pam McIntosh |
| Date: | Tue, 3 Apr 2007 16:14:43 +0000 |
<html><div style='background-color:'><DIV> <DIV class=RTE>Hello and Happy Spring to all!</DIV> <DIV class=RTE> </DIV> <DIV class=RTE>I'm wondering why my '91's rear heater leaks coolant only when heater is 'off' - yes off, lever to rear, no heat?</DIV> <DIV class=RTE> </DIV> <DIV class=RTE>I'm not sure what exactly is leaking - core or valve or O'ring. I don't see or feel any sign of leak from the lines, bleeder or valve or anywhere I can reach to feel on the housing. Just underneath the whole thing. I haven't had the black plastic cover off - don't think that is something I want to tackle myself. Can the valve or O'ring leak and it not be visible when the black plastic housing is in place - ie leak into the housing then find its way out the bottom?</DIV> <DIV class=RTE> </DIV> <DIV class=RTE>I would thing that if it were the core it would leak when the heater is on -??</DIV> <DIV class=RTE> </DIV> <DIV class=RTE>I drove all last summer and this winter with heater on and have had no leaks. I would like to attend to the problem as will likely get worse - whatever it is. I would like to get educated before I take it to a mechanic (when I find one).</DIV> <DIV class=RTE> </DIV> <DIV class=RTE>There are many archives on rear heaters problems. I have 170,000 km on the van. As I will be paying labour should I get the whole thing (core valve etc) replaced while I am at it - even if it were just an O'ring?</DIV> <DIV class=RTE> </DIV> <DIV class=RTE>I also saw in archives that you can get air into cooling system from the rear heater? I have a coolant level / air problem that will be the subject of another post "Coolant loss in expansion tank but not fill tank" perhaps there is a connection?</DIV> <DIV class=RTE> </DIV> <DIV class=RTE>Thanks for any input...</DIV></DIV></div><br clear=all><hr>Txt a lot? Get <a href="http://g.msn.com/8HMBENUK/2740??PS=47575" target="_top">Messenger FREE on your mobile.</a> </html>
Have something to add on this topic today? Revive this thread in the forum »