Civic - Honda :: 2008 - At Coolest Settings Vents Are Blowing Warm Air


Oct 17, 2015

History: A few months back I had a leak repaired in my cooling system. I noticed the other night that my radiator was nearly empty again, so I've filled it back up, but haven't fixed it yet.

As summer is over, I no longer need my AC. However that caused me to notice that at its coolest setting, the vents are blowing warm air (maybe 15ยบ warmer than outside) and that seems high to me.

My immediate thought is that the heater control valve may be leaking/damaged/corroded.

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I have a Honda civic 2011. Sometimes my middle two ac vents is not blowing out any air at all ( but the sides somehow works very little ). The reason why I said sometimes is because it stopped working for a day then it would work again the following day. I don't know what's wrong with it. I called for an estimate and the guy tells me if he has to open up the dashboard to open up the vents it would cost in upwards of 800.

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Honda - Accord :: 2004 - AC Started Blowing Warm Air Out Of 2 Driver Side Vents

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When I start my 1999 Honda Civic, a sort of sulphury smell comes through the vents. I ended up having my compressor replaced today, and I assumed the smell would be clean, because the a/c is new. (Tells you I don't know much.) Anyway, the smell is still there, along with a smell from the oil (I have a small oil leak) and engine. It all goes away after a minute or two, but is this anything to worry about?

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Civic - Honda :: 2003 - No Heat Coming From Vents Unless The Car Is Over 2000 RPM

2003 Civic, ~180,000 miles. Previously had overheat problems, replaced head gasket, timing belt, water pump, thermostat and hoses (+ a few other things) No longer over heating, but there is no heat coming from the vents unless the car is over 2,000 rpm. Hoses to the heater core are both warm/hot, so flow through heater core seems to be good. Also AC has same issue no cold air unless over 2,000 rpm. Is this the control to the blend door? Are they operated by vacuum and with a leak, need higher vacuum to operate?

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I have a '03 Civic DX 5 speed. It has 128000 miles on it. I've notice now that it is getting colder, my engine ticks when it is warm - I can hear it at idle and low rpms, but not at higher rpms. It sounds perfect when it's cold, but once it is warm, it has a "tic-a-tic-a-tic-a-tica..." sound. Tom and Ray talked about a Dodge Dakota that made the same sound when the engine was cold (about 8 episodes ago). So what does it mean if it only does it when warm?

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Nothing will blow out from vents, with heat or AC. I checked the fuse under the hood and that had continuity, I checked the 7.5 fuse under the dash and that was fine. I also replaced the blower motor resistor and the blower motor with brand new ones. Also used a test light to make sure power was getting to the resistor and motor and that is all good.

2004 Honda Accord EX Sedan .....

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Honda - Accord :: 1998 - AC Is Not Shutting Off But Instead Blowing Out Warm Air

Two years ago, I purchased a 1998 Honda Accord LX from a local dealer. I've had very few issues with it. However, shortly after I moved from Michigan to Florida, I began to notice a strange issue with my car. While the car is running and the engine is idling, I lose AC inside the car and the engine heat slowly begins to build.

The AC isn't shutting off, but instead blowing out warm air. The engine heat builds at a concerning enough rate, moving from a normal level to almost maxing out the gauge in the span of 20-30 minutes. This issue seems to auto-correct itself while the car is in motion, with the AC putting out nice, cool air and the engine heat staying at a normal level.

The car currently has about 269,000 Miles on it. I have been told the problem is likely a faulty thermostat, but I'd like a second opinion. What might be wrong with my car?

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I have a 2000 Honda civic ex. A couple months ago while driving I heard a squeal and my AC was blowing hot. I just changed out my expansion valve, drier and compressor but when I hooked up my gauge my low side wouldn't build pressure and my high sat like 150. Finally the low side got to 20 and high about 200. I over filled trying to get low side right and when I did get it to 40-50 my high side would be 300 but it wouldn't hold. I emptied the system but 150 psi is somewhere in the high side and won't get out.

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Civic - Honda :: 2006 LX - Air Conditioner Stop Blowing Cold Air

I have a 2006 honda civic lx and the air conditioner works fine when i first start the car.

However, after driving for 15-30 minutes the air conditioner starts blowing progressively warmer air, until it starts blowing warm (or even hot) air. this seems to happen when the engine gets hot.

One particular day it started raining, and suddenly the cold air kicked back in.

I took it to the dealer and they said i needed a compressor and coil for a grand total of $800. i took it for a free a/c inspection, and he said the problem might be electrical, but a visual inspection wasn't enough to figure out the problem.

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Civic - Honda :: 2001 - Fuse 4 Under Dash Keeps Blowing Periodically

My son's Honda Civic keeps periodically blowing the #4 fuse under the dash (alternator). He replaced the VSS and had the alternator tested but it still happens.

At one point the fuse would blow as soon as you turned the key to ignition but I traced that down to a shorted wiper motor which I replaced and that solved the immediate fuse blowing. BTW according to all documentation I have, the wiper motor is not supposed to be on fuse #4 so perhaps the under dash fuse box has issues.

Looking for a schematic for the under dash fuse box? I have the 01-02 service manual which has wiring diagrams that reference specific fuses but I can't found one for the box itself. Are there relays in that box or is it just wiring from fuse slots to the many connectors?

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I have a 2002 Civic LX. A/C worked until a few months ago. It would stay on for about ten minutes and then stopping blowing cold air; it would come back on and then go off again at it's own whim. Bought it to local Goodyear - told them the problem - they charged me about $130 to evacuate and recharge, looked for leafs but told me they saw no problems with the A/C, the condenser was fine, etc. A few days later, same problems started. Runs great for about ten minutes and then does its own thing.

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