Date: Mon, 11 Dec 2006 05:40:50 GMT From: Jeremy <jerem43nospamnet> Subject: Re: 82 Degree Thermostat in Winter?
I have an 82c thermostat and fan control in my 86 900t and have had no problems recently. I am in MA and had a couple of really cold days this week (less than 20 f) and had no problems with the 82c parts. Jeremy bozo wrote: > You don't say whay year your 9000 is, but one thing to keep in mind re. your > temperature guage reading is that because at least some models of the > earlier years of 9000's tended to run hot under some conditions, which > apparently resulted in a lot of unnecessary back-to-the-dealer trips from > concerned owners, a revision was made that so that the coolant temperature > sensor feeding the temperature guage was run first through the trionic > engine managment computer - the guage reading is not a 'true' temperature > reading on the later models, it is just what the computer wants you to know. > I don't know when this change happened (I used to own a '91 9000Turbo and it > seemed to run fine to me re. temperature, but it may have been the same > system) but I do know that it is managed that way on my current '95 Aero - > as I learned when the sensor failed - the coolant temp. sensor that feeds > the guage (evidently there are several other coolant temp. sensors used by > the system for other purposes) is located in the head near the throttle body > and it is also the sensor that controls the electric fan for the radiator - > it runs through the trionic engine management computer before doing either. > > > <Echo088880nospaml.com> wrote in message > news:1165760975.295084.21900nospam000cwy.googlegroups.com... > >>The 9000 I bought a couple of months ago has a 82 degree thermostat in >>it. I'm in Vermont, where we'll probably have some sub-zero F days this >>winter. So far I've driven in 5 degrees F with everything seeming >>pretty normal, although the temp needle rides about a quarter-inch from >>the blue bottom when highway cruising. Is there a mechanical reason I >>need to switch to a higher temperature thermostat for the winter? >> > > >
