I have a 93 accord manual. When i drive my windshield fogs up too easily. Even with the fans on MAX and my de-fogger on and AC and windows open. NOTHING WORKS!!! i need help please. this is too frustrating=/

 

I would check that the a/c drain tube that goes out of the firewall on the passenger side of the car is not plugged up. That would allow water to dam up in the evaporator and prevent the a/c evaporator from acting as a dehumidifier.

Use a pipe cleaner or a straightened out coat hanger to try to clear it out. Is the passenger side of the carpet wet?

Other sources of water moisture in your car are a leaking heater core (is there an anti-freeze smell in the car?). The drain tubes for the sunroof?

 

Make sure the ventilation is NOT set to recirculate.

 

My ventilation is never on recirvulate. Im starting to believe its my heater core. The passenger carpet isnt wet. Do you guys know any prices on a good heater core? And do you know how to replace it?

 

Look in the DIY secton for a post about shop manuals. Heater core is buried in the dashboard, within the air ductwork. Not sure how much you have to dismantle to get at that.

Can you smell anti-freeze inside? It's got a pretty distinctive smell if that's leaking.

 

Yeah, i can smell the coolant. But its not as distinct now than before