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NG900 & OG9-3 Workshop NG900 (1994 to 1998) & OG9-3 (1999-2002) & '03 Convertible Technical Forum

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  #1  
Old 31st January 2007
solitudesaab solitudesaab is offline
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Unhappy Engine won't heat up . . . but runs fine

My '95 Saab 900 "Check Engine" light has gone on a couple times in the last couple weeks. I noticed when it happens that the temperature gauge is still on low, even though I have been driving a while. Otherwise, there is no noticable problem. There is no Saab dealer or specialist within about 500 miles of where I live in Alaska, so I would appreciate any insight on what this could be/if it is something I need to fix. Thanks.
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  #2  
Old 1st February 2007
blueranger blueranger is offline
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Default replace your thermostat

replace your thermostat.... that is usually the problem if your not getting any heat.....

the check engine light is more hooked to the O2 sensor.....
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  #3  
Old 1st February 2007
mr rx-7 tt mr rx-7 tt is offline
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As blueranger said it's probably a thermostat. Easy 10 minute job. Just make sure you get the correct one.

http://www.thesaabsite.com/900old/c9...ng-cooling.htm
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  #4  
Old 1st February 2007
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Jezzadee Jezzadee is offline
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Quote:
Originally Posted by mr rx-7 tt
As blueranger said it's probably a thermostat. Easy 10 minute job. Just make sure you get the correct one.

http://www.thesaabsite.com/900old/c9...ng-cooling.htm
That link is for C900s. Unfortunately this was posted in the wrong forum so it will not apply to his 1995.

Standby for redirection.
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  #5  
Old 1st February 2007
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earthworm earthworm is offline
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Welcome to SC, Solitude

No specialist is necessary here; an operative thermostat will allow for a quick warm-up - the quicker - the better - within 3 to 6 minutes..Any professional mechanic can easily change one; they seem to last , what ? 3 to 5 years ? for most cars....
DIY is best, and ever so easy ; if the coolant system hoses are 7 to 10 years of age and original, renew them as well.
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Old 1st February 2007
SwedeSpeed95 SwedeSpeed95 is offline
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My car had the opposite problem, the thermostat stuck and the car overheated, If some crud gets in the thermostat it will keep it from opening and closing and it will not funtion, either keeping the car too cold or letting it overheat.

A coolant flush would not be a bad Idea while you are at it either.
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  #7  
Old 1st February 2007
mr rx-7 tt mr rx-7 tt is offline
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Quote:
Originally Posted by Jezzadee
That link is for C900s. Unfortunately this was posted in the wrong forum so it will not apply to his 1995.

Standby for redirection.
Ah maybe if I was paying attention I might have noticed he said 1996...
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