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Old 16th June 2008
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blinktude blinktude is offline
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Default temp sensor? engine coolant thermostat? or two different issues..

so past few days, I get fill coolant message on the SID and my temp gauge would often go down to blue cold or stay at 7-8 clock position.
I check coolant and there was plenty. The ring inside the coolant tank moved fine when I poked it. Are they two different problems or are they sensor issue?
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Old 16th June 2008
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I'd start with the thermostat and see if that cures the problem. Dropping temp gauge is usually stat related, it should be at 9 o'clock when fully warmed up so the stat may be stuck open.
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Old 16th June 2008
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thanks for the reply kermit
driving to work today and CEL poped up. stopped at autozone to get codes read and it poped out two.
P0116 and P0725.
Looks like P0116 is the engine coolant temp sensor
http://www.saabcentral.com/forums/sh...ighlight=p0116
would that throw fill coolant message on the SID?
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Old 16th June 2008
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No Low Coolant message with P0116. Change Thermostat and Sensor and check the heater bypass valve.
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Old 20th June 2008
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Quote:
Originally Posted by gghh
No Low Coolant message with P0116. Change Thermostat and Sensor and check the heater bypass valve.
what is heater bypass valve and what should I look for?
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Old 20th June 2008
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Quote:
Originally Posted by blinktude
what is heater bypass valve and what should I look for?
This may help.... http://www.fixmysaab.com/9-5_repair/...ps=2&nointro=1
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Old 22nd June 2008
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turns out my coolant level was below the min line.
I added some water in there and now the message doesn't show up anymore
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Old 22nd June 2008
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Default agreed

still check your coolant bypass valve its black has a round disc top with 3 hoses coming off its mounted on the firewall drivers side between the brake res and the manifold its a b-i-t-c-h to really get a good look at but I just phsyically do a good finger wipe around the whole thing to check for coolant, they are prone to leak and easy to replace but because of where it sits the coolant never visibly makes it to the ground so it is very hard to diagnose without the knowledge of the problem with them....I got the low coolant display on my sid 6 or 7 times before I figured it out with the help of this board too of course lol...thanks everyone.


I love your avatar classic game ski was....hehehe
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