Date: Tue, 06 Sep 2005 16:14:18 +0100 From: Grunff <grunffnospam.com> Subject: Re: Lack of Heat C900
LC wrote: > Okay.. I'll have to try that tonight and get back with you. As far as the > thermostat goes.. the engine isn't overheating, it's opening up properly, > etc. Is there a saab-specific reason you think this could be the culprit? Yes, your engine uses a magical 3 position 'stat. Cold: coolant circulates through block + heater core, not rad. Hot: coolant circulates through block, heater core + rad Too hot: coolant circulates through block + rad The idea being if the engine is too hot, you don't waste precious time circulating the coolant through the heater core. When your engine is at working temp, do the core in/out hoses get hot? As hot as the rad top hose? -- Grunff