Hello, my son has a 95 civic and the heater isn't blowing that hot of air, any reason it might be doing that? Any suggestions would be great thank u

 

Blown head gasket and an air pocket come to mind.


Alternatively a plugged heater core. Or misadjusted heater valve on the firewall.

 

how do u check heater core or valve

 

Its not blown head not sure about air pocket not sur how to check we just tested it again got car to running temp and blows cold not even warm u can hear it blowing so blower should be good.

 

Check your coolant level

 

u check the leves by looking in the overflow canister rite? It's a little past the max line that's while it was running

 

95 civic b16a motor the car is just blowing cold air even at running temp. How do we fix this we tried touching the 2 hoses and there not hot but the radiator hose is hot... what could be the problem

 

thermostat stuck open?

 

First I would check the bottom of the air flapper box and make sure all the white slider levers are intact. There is one that controls the air to either pass through the heater core or bypass it and if it's broke in an in the cold position, you won't get hot air from the heater even though the heater core is getting hot.

The other area is the slider valve in the engine bay by the fire wall, if the wire has come off the valve lever, the valve won't let hot coolant into the heater core.

If those all check out fine, then it's the coolant level, head gasket checks, etc.

Btw the flapper box is behind the center of the dash/ashtray area and if you look from the passenger foot well in the cabin you can see the bottom of the box and if I recall, there is two white plastic slider levers that you should see mounted to posts (that control the flaps in the box).

 

Well got the heater to work my son found a little lever in the engine bay and switched it the other way and it works great now.. so what do I need to to to fix that lol ?

 

Well got the heater to work my son found a little lever in the engine bay and switched it the other way and it works great now.. so what do I need to to to fix that lol ?

 

Theae should be a mechanical control wire from the HVAC unit in the dash to that valve. Likely someone ripped it off the firewall and tossed it when they did the engine swap.