With the weather getting cold it's time to use the heater for the first time on my Accord and it looks like I've discovered another issue. When I turn the heat on, I get this thick, wet vapor coming out of all of the vents that immediately fogs the windows and smells like antifreeze. I believe it is the heater core falling apart and that would also explain my coolant leak (unless the head gasket is also bad).

I nabbed a copy of the FSM and know that the entire dash assembly has to come out and I am going to order the core from Advance:http://shop.advanceautoparts.com/web...15021|L3*15934

Is there anything I should be aware of before tackling this project and is there anything else I should check or replace while I have the interior apart? Thanks!

 

I have the same issue and I have the heater core and have just been putting this off. If I manage to get around to doing this in the morning I will update.

 

Please do! I verified that the heater core is bad by pressure testing the cooling system this morning.

I am going to try and take pictures as I go this weekend to put together a write-up.