Could be a slow leak that evaporates before it drips, such as a failing hose near the clamp area. BTDT. 

Chris.

Wysłane z iPhone'a

Dnia Feb 24, 2012 o godz. 12:02 Craig Cowan <phishman068@GMAIL.COM> napisał(a):

> My new bus,  a 90 automatic which sat for a few years seems to be makin coolant vanish. I checked it for leaks thoroughly before its commissioning and we addressed some problems.  Now I find myself filing the expansion bottle behind the license plate for the second time. The system holds pressure, I don't know of any leaks, the heads have a thousand miles on them, and the heaters produce heat. The temp gauge has always seemed to stay a little low but that may just be where this one likes to hang out. 
> 
> Any suggestions on where to start? I've been out of the wbxer game for a little while and my head still thinks engines are supposed to have simple and reliable cooling systems like my zetec. 
> 
> -craig
> '85,'90,'87 Syncro