NO HEAT ... Need Help!
 

I drove back home from work today and noticed that there was no heat coming out even when I turned it to the max. It was just blowing cold air out. Anyone know why or experienced this before?

What did your temp gauge say?

lol...i here of them over heating........try checking all the clamps near the thermostat.....it never happened on my rx7..but it did on my eclipse...that was the prob a loose clamp......also check your fluids..u never know

The temperature was normal. Nothing lose by the way.

With the key in the ON position, stick your head near the pass. footwell and listen for the air-mix motor moving when you change the position of the heater temp knob. It wont (and shouldn't ) be loud, so listen carefully.

If you don't hear it, start blaming electrical stuff: the knob, the heater control unit, and the air-mix actuator.

If you do hear it, you'll have to start poking around the heater to see whether the air-mix door is moving and the heater core is hot.

BTW, The heater core should always be flowing hot water. It's the air-mix door that mixes heated with non-heated air to give you temp control.

Good luck.

Where are you directing it? Are you not getting any heat at all out of any vent or is it just out of the dash vents?

Try directing heat just to the feet and just to the windshield defogger and see if you get it. I never get heat from my center vents but always do when I send it to the floor and windshield and I've heard that's the way it's supposed to be. Do you have the owner's manual? Apparently it's addressed in there. If you don't get heat anywhere, it's definitely some other problem.

I remember one day last winter when it was really cold. The car wouldn't warm up past 83C. I turn heat all teh way up and it wouldn't blow hot air...

I don't get heat out of the dash vents, never have. Plenty of heat with the setting on floor vents

That's by design. Heat is only out of the floor vents (check the owner's manual).

Shoddy design. Anyone have any insight as to why they did that?

Maybe they thought that those who would be driving it would be wearing gloves or something and wouldn't need it.... :rolleyes:

Warm air blowing in your face makes you sleepy.

Heh...makes me warm when I'm freezing my arse off. I like it hot. :D

How the f*ck would a loose clamp cause the heater not to work?

Like everyone else said, warm air only comes out of the floor and windshield vents.

People, read your fucking owner's manuals!

Hot air to floor and windshield vents.
A/C to face vents.

:withstupi
Where did you get overheating from?! :scratch: I agree with Jonski, how can you not read your manual or even own this car and know soooo much about it as most claim and "overlook" you A/C and heater "specs"? O well

same here lolz

As the delinquent kid on the simpson's says, "HAHA."

maybe these used car sold lately don't come with owners manual. that is why these idiots did not read.

Maybe your heater core is cloggged.

Like Jonski said, RTFM! :D

This is pretty typical design actually. If you want heat blowing in your face, vent to the footwells and use recirculating air. Hot air collects in the footwells and is sucked up by the recirc. intake and blown in your face.

I haven't driven my own car much in winter and never noticed that this was the case (i.e. cold in face, hot at feet) until this winter... it's just below 0 F right now at 11:22pm EST... highs are just barely getting into the 20's... I took the car in and noticed this... then found out that it's normal... I didn't think of what InsaneGideon said -- I'll have to try that!

I did try all directions. Still no heat. Most be something wrong with mechianical stuff.

did you not read everyone's post??? Good grief I gues he really does have a reading problem! No heat is going to come out of the front vents! Only floor vents and window vents! DUH!

Mr. Dragon Ball ... which part of my sentence that you don't understand and you replied? What I meant all directions is THERE IS NO HEAT COMING OUT FROM ANY VENT. This is my fourth FD that I own and I know that there's no heat coming out from the front vents.

Wow... I think you're the one with the reading problem. As usual, you've provided valuable input.

BaOz: I would confirm that there is hot coolant circulating through your heater core (feel the underhood heater hoses, inlet and outlet, and see if they're hot). If it's not that, then attack the vent mechanicals.