Why does my Honda Civic blow cold air?

In the morning my Civic blows cold air until I begin accelerating fast. If I keep the speed at about 30-35 and the rpm around 2 the air will blow nice and cold, anything after that it will start to blow warmer air, until I release the gas or slow down, then it will go back to nice and cold.

Why does my Honda Accord a / C not work?

A/C wouldn’t blow cold air when outside temperature is 90F or above. If I am staying on parking lot or awaiting for green light with engine making 700-800 RPM, A/C would blow warm air. As soon as you start driving and engine goes to 1500-2000 RPM cool air starts coming out.

Why does my AC blow cold then blow warm?

The moisture can freeze into ice crystals right at the orifice tube or expansion valve, clogging it and stopping the flow. The symptom appears as: blows cold, then warm. If you shut off turn on the heat for a while, that’ll melt the ice crystals and the system will start cooling again. But it will still freeze up.

What are the defects of a 2008 Honda Accord?

Lemon Law CarComplaints.com Notes: The 2008 Honda Accord has several serious defects: poor brakes, excessive oil consumption, & uncomfortable seats.

When does the AC blow warm air or cold air?

The AC on my 2008 2.0 L turbo now only works when I am driving at speeds of at least 30 MPH. When driving at slower speeds or idling, the AC blows warm air. I brought car to two VW dealerships to have their service department diagnose the problem.

Why does my air conditioner get cold when I start the car?

If that is getting stuck partially in the warm position (not able to fully go to the cold position) the A/C would seem to work fine when the car is first started. But once the engine starts to heat up the heater would begin causing the air you actually feel to be warmer than it should, even if the A/C was working fine.

Why does my Honda CRV turn warm at idle?

I agree with MrShift@Edmunds, same thing happened to a friend of mine with a Honda CR-V. Hers would cool fine while driving around and then turn warm at idle. I replaced both engine cooling fans (they were not operating even when I connected them directly to battery power) and that solved the problem.

Why does my Honda Civic heater keep overheating?

Although, it’s commonly believed that it refers to the temperature of the hoses, but Honda-Tech.com explains that both hoses should be hot if working properly. The most common symptom of a blockage is heater malfunction. Figure 4. Make sure all the hoses are properly attached to the radiator.

Why is my Honda Civic R350 leaking water?

You should have the A/C drains checked to see if the drains are blocked causing the water to leak into your 2008 Mercedes Benz R350. Dirt and debris that gets in the A/C evaporator case can clog the A/C drain… Hello. The code you are getting is for what is known as the PremAir sensor.

How long does it take a Honda Civic heater to warm up?

After conectiong my phone to the ECU I have found my civic will warm up from 10 to 50 Degrees C in 3 minutes as long as the revs are at 2000rmp or less. If I take the revs to 3000 the temperature can go from 70 to 50-40 in 30 seconds. I have changed the thermostat and checked levels etc. but I have not yet resolved the issue.

What causes the lower radiator hose to get cold?

Thus, making the lower radiator hose to heat up. It may happen that your car might get low on coolant and is not able to reach the lower radiator. As a result, the lower hose emits cold air. 2. Water Leaks The most common problem that is guilty of this issue is the water leaks. There are several places responsible for these leaks.

When does Honda Civic a / C stop blowing cold?

Hi my 2002 Honda Civic LX 2DR A/C stops blowing cold air after 20 minutes, If I turn it off for a few minutes it will works fine again. Sometimes it will go out again after 20 minutes and sometimes it will work fine for an hour + ride.

Why does my Honda Civic run so hot?

While not having enough coolant may make your engine run hotter, it can also cause your Civic to not be able to create enough heat. Is there isn’t enough line pressure, due to low coolant, then the heater core will not be able to get any coolant itself.

What to do if your Honda Civic heater is not working?

You can have the heater core back flushed also to improve the flow through it. 15 people found this helpful. If your car isn’t overheating or losing radiator fluid, have the mechanic check the thermostat. If it is stuck open your heater will not work properly. You may have gotten a bad one that didn’t last long. 20 people found this helpful.

What to do when your car heater is blowing cold air?

Start the engine with cap still open and let the engine idle for a few minutes. If the coolant level should drop as the thermostat opens, top it up as necessary. This should bleed off the air bubble. When the engine is fully warmed up, put the cap back on and take a drive to see if the heat output has returned.

What to do when your car AC blows warm at idle?

GM and others use either a three-relay set up to run the two fans at low speed for normal driving and high speed when the AC is on or the low speed can adequately cool the radiator. Other carmakers use a solid-state speed relay that varies the speed of the fans based on engine cooling and AC needs.

What to do if your Honda Civic Idles up?

Just pump your Gas Pedal a few times if you have ” Cold Starting Issues “…. But once your Engine is Warm / Hot, Idle will be ” NORMAL ” again. NOTE: That is the only ” DOWN FALL ” to this Bypass. B. Block Off By-Pass – You can make a Gasket and ” Block ” the 2 holes on your IACV and put the IACV back. It will ” NOT ” harm anything.

Why does my car air conditioner blow cold then warm?

Any number of culprits could be causing your car A/C to blow cold then warm air, including: A Leak in the A/C System A small refrigerant leak is the most common reason a car’s A/C gradually loses its cool.

Why is my engine temperature reading so cold?

The most common problem when it comes to a faulty engine temperature reading is the coolant temperature sensor itself which is sending the information to the cluster.

Why does the car thermostat keep going up and down?

The thermostat restricts the coolant from flowing through the radiator. If this gets stuck on wide open, the temperature might not reach the optimal temperature. However, this will often make your temperature go up a bit from the min mark if you drive hard enough.

Is there a Honda Civic that will not start?

Honda Civic Questions – 2002 Honda Civic cranks but will not start. – CarGurus 2002 Honda Civic cranks but will not start. I have been fighting this issue for a long time.

What’s the pressure on a Honda Civic when it starts?

The pressure is 45 psi when cranking. The car will start sometimes like there is nothing wrong. When the car starts it idles good. Sometimes when driving the car, it has a small miss in it. When the car starts it runs and drives fine except for the small miss at times.

Why does the fuel pump not work on Honda Civic?

Forgot to add that when a crankshaft sensor fails the PCM will automatically keep the injectors from injecting fuel on some cars. The fuel pump will sometimes still work and the pressure is good and all but the injectors will not work unless the PCM is recieving a signal from the crank sensor. 13 people found this helpful.

Why is my car AC not blowing cool air?

It’s a nightmare to find your car AC not blowing cool air in burning summers. But, people generally face this issue. Your car includes various parts that are interconnected with each other. Therefore, even if you have recharged the AC of your vehicle, the issue in other car machinery can affect its working too.

How can I tell if my Honda Civic has an air conditioner problem?

There are two connectors under the hood attached to your A/C’s refrigerant system that should be labeled as such, one for the high Psi end of your gauge (the red side) and one for the low end (the blue side). If the level is unbalanced, it will cause the entire air-conditioning system to shut down as a protective measure.

What should I do if my Honda Civic is running hot?

Inspect the engine. A Civic’s engine lies alongside the A/C setup under the hood, so if you can’t find anything wrong with the freon levels or the compressor, you may need to consider a different source. If you discover that the engine is running hot, its proximity to the A/C will negatively affect the system’s cooling capacity.

Why is my Honda Civic air conditioner not blowing cold?

Conclusion: A/C Not Blowing Cold Honda Civic Most of the time, when your Civic’s air isn’t blowing cold enough, it is going to be a lack of refrigerant causing the problem. We recommend having a professional recharge your A/C if it does end up being a coolant issue. If you put too much coolant into the system, you can really do some damage.

Why does my car AC blow cold air then blow warm air?

But that cold air turns warm fairly soon after because the high side pressures build to the point that the high pressure switch shuts off the compressor clutch. Once pressures equalize, the high pressure switch allows the compressor to start up again. The cycle repeats over and over, providing a short period of cold air, followed by warm air.

What do you need to know about Honda Civic air conditioning?

When Honda Civic air conditioning system (A/C) is being diagnosed it must have Freon in the system. If the system has sprung a leak somewhere and the Freon is gone it is no longer an active system that can be checked.

Why is my Honda Civic running so hot?

A Civic’s engine lies alongside the A/C setup under the hood, so if you can’t find anything wrong with the freon levels or the compressor, you may need to consider a different source. If you discover that the engine is running hot, its proximity to the A/C will negatively affect the system’s cooling capacity.

What causes a Honda Civic engine to overheat?

Remember that overheating your engine could cause irreversible damage. Here is guide of the most common causes for overheating to help you identify and resolve the problem. Low coolant and leaks are the most common source of overheating, but there are other related issues that could cause your Civic to overheat. Check the oil cap for white spots.

Why is my Honda Civic not turning on?

If the fan isn’t kicking in, then there a few things that could cause that. One of the reasons could be a faulty thermostat, as the thermostat tells the fan when to turn on and off. Another reason could be that the fan’s wiring harness is not getting power to actually turn the fan on.

Why is my Honda Civic making a grinding noise?

Gunk from the oil in the coolant. Water pump failure could cause engine overheating by failing to pump fluids through the system. The easiest way of knowing if the water pump is bad is to listen to it. Many forum members describe it as a grinding noise, while others describe it like a can being crushed. Either way, it is a very distinct sound.

When to start a hot engine in a Honda?

Honda automobiles are notorious for having troubles with restarting after a fully hot engine has been sitting for five or ten minutes—such as when you’ve just pulled into a gas station fill-up or when you’ve run into a grocery store to pick up a few items.

Is the Honda Civic battery good for a cold start?

If it’s strong, the battery is fine. Honda alternators are usually good for like 8-10 years, so I’d be surprised if that were failing, but even if it were, you’d have symptoms 100% of the time, not just on cold starts. Autozone/Advance will check your battery for free, just in case.

Why does my 2012 Honda Civic not start?

If it’s a 2012 with the factory battery, that’s definitely a possibility. However, I think if the battery were dying, the engine wouldn’t even crank for 10 seconds, so there’s probably more going on here. To get to the root of it, an internal combustion engine needs 3 things to run: air, spark, and fuel.

Why does my Honda Civic start in the morning?

Extreme cold will and does have an effect on how your car starts in the morning. Our Civics don’t have the largest batteries to begin with. I live in Florida. Average temperature is around 80F. I used to live up in Boston, and drove this thing through many winters and never experience this.

What’s the problem with my 2009 Honda Civic?

There is an ignition cyclinder issue with my 2009 Civic, and Honda Canada is apparently very poor at stocking this part, since they are claiming via the dealership that it will take anywhere between 5 and 25 days to get the part shipped on backorder.

Why does my Honda Accord have a slow start?

Few weeks ago I had an oil change done at my local Honda dealer after some body work. When I picked it up, it had a slow start, 3 seconds of slow cranking that eventually started it. I thought they maybe left a door ajar and so the battery was just low. I didn’t think much of it.

Why does my Toyota start slow in cold weather?

Slow starting in cold weather is caused by increased friction due to the oil being thicker in cold weather. If you have a 0W20 or 5W20 synthetic oil in your crankcase, the slow starting would be mostly due to the electrical system. My Toyota starts considerably slower in very cold weather, no big surprise.

Navigation