heater core, replaced on my car, but now my side windows fog up, does anyone know why?

Question

all windows except the front window is okay, i have heat and works good, but my car is fogged in side,

Answer 1

Well, more than likely when your heater core went bad it leaked some antifreeze into the floor board of your car and when ever there is moisture on the inside of the car when the outside temp is cold you will end up with condensation on the inside of the windows.It will eventually stop once the floor board drys out. You can always have your carpet pulled back and have someone clean it up.

Answer 2

One of your heater ducts may still have antifreeze in it. Does your interior smell sickening sweet. When that side window fogs up again wipe across the fog on the window with your little finger. Dot your tongue with your finger if you sense a sweet taste.If so here may be antifreeze standing in your duct work, a leaking heat control valve or loose heater core hoses. Draw a line on your clear coolant recovery tank while it's cold at the top level of the antifreeze. Keep checking this level every other day. If the level is dropping you have an antifreeze leak somewhere. Check the top portions of your floor carpets.

Answer 3

there still is some coolant inside the vehicle....i would leave it in a garage with all the windows open over a weekend or a few days....with some heat on...

maybe a dehumidifier inside the car while its parked inside...

the shop fixed the heater core problem but didnt clean out the car enough...

mike

Answer 4

there are 2 issues which will reason that too ensue ,one is a leaking heater center,and the different is condensation geared up up interior the heater field,or there's a leak interior the automobile someplace,the heater field has a drain on it,that runs to the outdoors,interior the direction of the firewall,and this is wiped clean out,that would desire to probable be it,exceedingly and it being an older automobile in many circumstances there is debris geared up up interior the field and it wont enable the condensation to empty off,and which will fog the abode windows up additionally,you my might desire to envision the automobile for leaks,any moisture interior the automobile will reason a similar concern to ensue to it,solid success with it.

Answer 5

Sounds like you have a leak in the system. Feel the floor under your dashboard for wetness. Take the car back to the people who installed the heater core and ask them to check for leaks.