2005 Honda Civic Q&A
2005 Honda Civic Question: No heat, not overheating though...
A few days ago, I noticed (the last time I had my car's oil changed (about a month ago))someone there overfilled the coolant! Then, today when driving it, all of a sudden it no longer blew hot air! It is not overheating and the blower is working fine! Any suggestions & is the overfilled coolant at all related? - princs
Overfilling the engine coolant should have no affect on the heater output of your 2005 Honda Civic. I would suspect a problem with a heater coolant control valve or temperature air mix door. - Jim Taddei