I have noticed that my car will not warm up (interior) when it is just idling. The other morning it was 26F and I was sitting in my car waiting. I was getting cold because the heater was blowing cool air. The only way I could get it warm was to increase the idle rpm's with the gas. Does anyone else find this... (People who live in Ca, Az, Fl, etc need not reply-I already know what your answers will be! )


Thanks,

g4ian

 

I tried to respond but I'm not sure if it posted so here goes again. I haven't had the cold air prob with my '03.5 but did have that prob with my Ford F150. The warm air would turn cold whilst idling. I noticed my coolant was low and when I filled it to spec amount the cold air problem stopped. Not sure if that could be it but worth a look!

 

Idling will definitly take a lot longer to warm up.
(assuming coolant is OK)

Also it's not good for the car.
It's better to just drive slowly for the first while.
That way the trany, differential & other components get
a chance to warm up too.

 

Our G35s are so smart....When it is cold, the heater will not blow ANY air until the engine
is warm enough to blow hot air. Under these conditions, just drive off and let it warm up.
As soon as it is warm, the hot air starts flowing. There is nothing worse that a heater blowing
cold air when it is cold outside. You probably switched to manual mode to get cold air
to blow?

 

Let me clarify...
I drive to hockey at 5:00 am in the morning. The rink is not always open when I get there, so I sit in my car and drink my coffee for 5 minutes. I leave the car running bec/ it is friggan cold out....and after a minute my car starts blowing cool air.

I will check the coolant level...

Thanks

g4ian

 

LOL thats different.
Sorry for the assumption.

I know exactly what you mean about waiting in the cold.
I had to pick up my daughter from the pool last night.
At 11pm the outside temp readout was -26 deg C.
Sure appreciated the bun warmers.

But the heater worked fine, no cold air while idling
so low coolant sounds like a posibility.

Keep us posted.

 

Rev it up, so it warms up quicker.

 

Just wanted to follow up,
The problem was low coolant level. It seems my cap came off at some point and most of the coolant was gone. Problem was solved after topping it up...

g4ian

 

g4ian
Great to hear you got it sorted out.
Sounds like you caught it B4 you ran into problems overheating the engine

 

I just turn the heated seats on high.

 

Make sure to bleed all the air out of the system, or you'll end up with an air lock which will affect heating again for you.
I'm glad you found the problem, but to lose that much coolant, didn't you notice any coolant under the car?

 

Or any neighborhood cats laying around dead?

 

I am also having the same problem. What is the best way to bleed the air out of the system?

 

It will work out of the system on it's own.
Just watch your level, you will have to add some coolant when
the system burps.

 

GSM,
I suspect the cap was not put back on after fluids were topped up at the dealer. I am sure there was some initial slopping over, but I would not have been driving or parking the car in my driveway right away. I believe most of the fluid loss occured from evaporation.


g4ian