Date: Sun, 01 Jan 2006 16:54:38 +0000
From: Grunff <>
Subject: Re: Curious Heater Problem

Allan Schneider wrote: > Hello , Hi! > Can you tell me more about this thermostat? I am assuming that OEM > means Original Equipment Manufacturer. Sometimes it is also called > "other equipment manufacturer " but you do mean SAAB-- correct? Original Equipment Manufacturer - so either Saab branded, or made by the manufacturer who originally made the part for Saab. As opposed to pattern parts. > Why would a non- SAAB thermostat be different than the original ? If > they claim computability shouldn't they operate the same way as well? A non OEM one is the same shape and size, and works in much the same way - but it fits lots of other cars too. Most cars don't have a "shut off the heater core at high temp" feature, so those thermostats don't do that. > How does one know ? That's a tricky one, and depends a lot on where you are and what pattern parts are available to you. > And would defeating this feature have a possible negative consequence? I'd say if your cooling system is in good condition, and you don't tend to run hot much of the time, then it will be fine. > As it appears to be quite intentionally designed that way , it could be > of some necessity or importance? It is important, in that it puts the engine's safety ahead of the occupants comfort. This modification would reverse that priority. FWIW, I've bought 900s with non-OEM thermostats, and some with no thermostats at all, which were running fine without any overheating problems. (I'm not recommending having no thermostat at all - that's not good practice) > Going around it may have be risky with > unintended consequences - like over heating and serious engine damage. As I said, depends on the overall condition of your cooling system (radiator efficiency, how clogged up the water ways are etc etc.). Where do you live, and what are the seasonal highs/lows? -- Grunff

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