Quote:
Originally Posted by California98Civic
My 1998 has no cabin air filter (the USDM Civics didn't get one for some reason). It also has no transmission filter. The FSM says, I think, that the thermostat begins to open somewhere in the 170s and it completely open at like 194. IIRC. I would bet the 7th Gen FSM will tell you what the specs should be.
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170°F sounds about right for the thermostat. Before my headgasket issues, mine would typically run between 170°F and 194°F.
7th gen Civics have a cabin filter. Likely yours has never been replaced and will look as bad as mine was:
