Engine won't heat up . . . but runs fine

[solitudesaab]

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.

[blueranger]

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.....

[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

[Jezzadee]

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.

[earthworm]

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.

[SwedeSpeed95]

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.

[mr rx-7 tt]

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...