Ive found that if i move the main wire harness that comes into that area mine will decide to come on. Its easy to reach should be just behind the right kick panel in the drivers side floor board just move it a bit with the tips of your fingers and presto.
um ok, i will, but what does that gotta do with the heater?
Coolant is what runs through your heater core. Its almost like another mini radiator in your dash, the coolant dissapates heat into the air that is blown into the cabin.
You could possibly have a clogged heater core, an air locked heater core (been there done that), stuck open thermostat (is your engine taking a while to heat up?), or possibly one of the valves is stuck. There is one valve (at least on the 5SFE, I dont remember about the 4AFE) that open and closes flow through the heater core, it on the firewall side, you'll see two smaller diameter rubber hoses that run into the firewall(heater hoses), its on one of those right at the firewall. Also there is an air valve inside, when you turn the knob from cold>hot you should be able to hear something almost thunk inside the dash, thats the valve. you can also reach under the passenger side dash, just to the right of the center console there is a plastic linkage and a metalrod, thats the linkage for that valve, it will move when you turn the cold>hot knob.
As for having knobs, I've yet to see a single celica with the fan speed knob lol
RobMilkshakes, the 4A-FE Celica uses exactly the same heater core coolant valve that the 5S-FE does. Same exact setup. So yes, if the HVAC temperature control knob, which opens and closes that valve, is eitiher broken or is no longer connected to that valve, that could be a cause of the problem, just like a themostat that doesn't work (although Yotaboy91 would know that since his coolant temperature gauge wouldn't be getting to the normal, or mid-range, operating temperature), or there cold be air trapped in the heater core from an unsuccessful coolant drain and refill, or the coolant level to low. I haven't seen a heater core in these Celicas clog up yet, but I suppose that is possible.
I have yet to see a clogged one as well, but I suppose its a possibility. I believe mine is partially clogged just from the deposits in the cooling system.
And thank you, I owned a 90 corolla before my celica and just couldn't remember seeing a valve there or not. I do know one thing though, I miss the heat in my corolla. It was absolutely ridiculous.
And about the thermostat, it could get to normal operating temperature with a stuck open thermostat depeing on weather, just can take forever to do so.
The heater cores in all 3 of my Celicas are really hot, although with one being a convertible, I rarely use that one.
If you do think yours might be partially clogged, you can always take off both of your coolant lines going to the core, and run a hose from your house water supply to the "outlet" of your heater core to backflush. You might be able to get whatever is in there out via back-flushing. Had to do that once on a van heater core, lots of stuff came out, and it worked great after.
Thanks, but tried it. It definitely flows better but still not great. Then I had my radiator cap go out on me, and I think from losing coolant my core became air locked again :/ so I'll deal with that as well as all the other little stuff as soon as I get her back before I sell her.
ok according to my aunt she had the ac converted to that new gas stuff this summer and it would have costed more for the heat to be done too or something?, does that let yall know anything?
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