So I Have A 04 G35 4 Door And It Is Very Cold Where I Live And I Need My Heater To Work And I Can Not Find Out Way It Is Not Working The Dealer Wants A Lot Of Money To Fix It They Say That It Is The Controls On The Heater That Are Bad But I Did Not Know If Anyone Has Had Is Problem Before

 

uh, so you cant move the temp to 75+ on the controls?

 

do the hvac controls work at all?

 

does your shift/caps key work at all?

 

Your car is warmed up while you're trying to get warm air, right?

 

Yes the car is fully warmed up and the climate control can be set at 90° And it just blows cold air while idling When you're on the freeway it blows nuke warm air But nowhere near hot I thought it was the thermostat But it warms up fine on the Temperature Gauge cluster And I have Check the coolant system for air bubbles

 

I believe the recirculating valve is electronic the control I was wondering if I put in an aftermarket radio that has aftermarket climate controls if that would fix it Or if it's the recirculating valve I just don't understand why it gets warmer on the freeway if the valve is Closed so Anti-freeze can't go through the heater core What are your thoughts

 

you can always turn off the AC button.

 

Does it heat up with rpm?,

 

1st to check is your radiator coolant level.

 

It does not heat up with RPMs and the coolant level is at the correct level And yes the AC button is off

 

The same type of thing happens to me..after warm up i have to drive about 8-10 minutes for my heat to actually start working then its fine

 

I would check first if the right(passenger) side heater hose in engine room is hot or not.

 

Okay if it is or isn't what do I do next And thank you again guys for Helping me out

 

that hose presumably goes to the heater core, if it is not hot then the thermostat is shot. <- I believe that is what he is getting at.