204hatch

i have a 96 3.2 tl and it wont blow heat. Blower motor blows air but not hot. Its not the thermostat since the motor is running at proper temperature when motor is warm but still no heat??

Any common problems with this? Weird that my 95 accord did the same (didnt end up fixing it)

TexasHonda

There is a heater control valve that allows hot water to flow to the heater core under the dash. It is controlled by vacuum from a electric solenoid valve.

Check that vacuum is available when heat is commanded. If no vacuum, then valve won't work. No vacuum would suggest damaged vacuum line or failed solenoid valve.

If you have vacuum, observe whether the actuating rod of the vacuum motor drives the valve. If no movement, the vacuum actuator has failed. A new valve will be necessary.

good luck

XSleepizeX

iTrader: (2)

heater core

Ken1997TL

Or lack of flow to it.

Jeffman

Do you have enough coolant? I had the same problem, it went away when I did new head gaskets and new intake gaskets. There was coolant ALL OVER the top of my engine under the intake. There is a coolant line that is under the intake, on top of the engine. The O-ring that was on that line was bad and spit out the coolant onto the engine. It was a hot mess.