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Old 13th July 2010
bikedude bikedude is offline
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Join Date: May 2008                                                
Location: Oslo
My Saabs: 1997 9000 CSE 2.3T
Posts: 16
Question what about the Saab Lancia?

"This is why so many cars overheated. So after they finally figured this out and changed it back to 82`c for the summer and 87`c for winter, the problem was solved."

I'm not sure how to wrap my head around that explanation. As I understood Jim, the thermostat mostly controls when the cooling starts. A 5 degrees difference does not sound much to me.

Unless the coolant used back then boiled at a lower temperature and the higher set thermostat gave it too little room for play..?

If so, such could explain why we see so many alternative thermostats even today. My local third-party spare parts catalogue offer me no less than 4 thermostats for my 9000. 74, 82, 88 and 92 degrees if I interpret the model numbers correctly. I suspect they simply offer any thermostat that can fit...
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Old 13th July 2010
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Galvas Galvas is offline
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Join Date: Sep 2005                                                
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My Saabs: 9-5
Posts: 211

If thatīs correct... itīs simple....
74 - for Tropics
82 & 88 - Normal
92 - For Hard winter

Nevertheless, Saab only sold 82š and 88š

In My car, itīs only 82š

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Old 14th August 2010
Toliandar Toliandar is offline
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Join Date: Aug 2010                                                
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My Saabs: 1993 9000 cd
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Okay I just got a 1993 Saab cd and I have a question. How high can the thermostat gauge on the dash read before it is overheating? I have noticed this car running hotter according to the thermostat gauge than I'm used to from other cars however after reading the OP I'm not sure if it's a good thing or a bad thing.
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Old 1st July 2011
cheesecake cheesecake is offline
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Join Date: Jun 2011                                                
Location: Lakewood, CO
My Saabs: 1991 9000 T
Posts: 22

Wow so my cold-air is useless?
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Old 29th August 2011
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SaabCrazee SaabCrazee is offline
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My Saabs: '91 900 Turbo Convertible
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I found this thread by doing a search for "alcohol injection"... Saturday, I did a search trying to find proper t-stat temp for my 91 vert. This post was nowhere to be found (or I didn't scroll thru all the pages of posts to find it)... It's VERY informative and would have sent me packing to the parts counter lickity split.

So... For the other noobs to the Saab world, wondering if their car would benefit by running a cooler t-stat than recommended by the factory...
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Old 2nd March 2012
Karpov Karpov is offline
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Join Date: Feb 2012                                                
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My Saabs: 9000 16T 1989
Posts: 11

Thermostates are pretty **** nowadays?

My original thermostat started raise temperature on idle, about 10 o clock (89year gauge) but in drive it dropped normal 8 o clock.

So, i bought wahle made in germany, temperature raises on 10-11 o clock all driving situations, not lower than 9 o clock what was unusual however. Radiator was calm, upper hose hot.

Today i bought motorad from saab shop. Now radiator is hot and upper hose is hot, temperature is 10-11 clock.

Im totally messed up, what is good thermostat? Ive been pressing hoses etc but no air ymmm, thermostat is still wrong and ****?
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Old 2nd March 2012
Twinsen Twinsen is offline
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Join Date: Dec 2011                                                
Location: USA
My Saabs: 9000
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I'm not sure how accurate our gauges are. With OBDII reporting 195F, my gauge reads about a third of the way up.

Here are some in-circuit temperature sensor voltages:

0.9 V at 60 deg C
0.54 V at 80 deg C
0.41 V at 90 deg C
0.26 V at 110 deg C
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Old 14th May 2012
dagorelgrab dagorelgrab is offline
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Join Date: May 2012                                                
Location: colorado springs
My Saabs: broken 1996 9000 cs
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Question my poor saab

my poor saab died when, it blew radiator fluid into the forced air intake thru some little hose or something ?, is this an ok place to say that
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Old 15th June 2012
jw.roberts jw.roberts is offline
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Join Date: May 2012                                                
Location: georgia
My Saabs: 97 9000 cse turbo
Posts: 16

biggest thing to know about coolant is absolutley no leaks. it is a pressurized system. water boils at 212°F for each pound of pressure the system holds you get 1 extra degree. so if you have a 16 lbs system that isn't leaking you won't boil untill 228°F. most cooling fans don't kick on untill 215-220. this is just a base for only water in the system.

Last edited by jw.roberts; 15th June 2012 at 01:15 AM.
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Old 14th December 2018
pointemstraight pointemstraight is offline
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Join Date: May 2014                                                
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My Saabs: '96 9000 Aero, '07 Sportcombi 2.0T
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Thanks for the great explanation, gents
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