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?
No heat, not overheating though... on 2005 Honda Civic
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.
I appreciate your response! I actually didn't notice that it was only blowing cool air when at idle or low rpms, until the ride to the repair shop! A bill & a new thermo. later, I'm going to guess that was not the solution because after that was done it was still doing the same thing. Thus, I brought it back & they bled the system again, and it seems a little better. It's not blowing cold but warm air, although, it def. does get hotter as the rpm's go up! Hopefully, it was an air pocket?! However, if it continues, I will def. have them check into your suggestions! Thank you!