Question about 2003 Toyota Corolla

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AC problem My AC goes from blowing cool air for around 5-10min then it blows warm air. I changed the cabin filter, but that did not resolve the problem. There was no light that came on indicating any AC problem, but I haven't checked any fuses yet. One thing I noticed is that the coolant is only below the full line about a 1/4. Could it only be that a coolant flush is needed?

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Yes you can flush out the coolant system, also you might need to recharge the AC system by using the Refergerint R-134A (which you can buy at autozone or other auto part stores) and charge the 134A on the Low side port.

Posted on Oct 09, 2008

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Posted on Jan 02, 2017

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06 Volvo s40 a/c works about 20 minutes, then shuts off and engine cooling fan stops at the same time. Works again after car cools down some.


Classic symptoms of evaporator freeze up. Do you have a huge puddle of water under the car after it sits for a while after turning it off? That would be the water from the melted ice. Freeze up can be caused by low refrigerant or a clogged cabin air filter that restricts airflow. Read this post on AC that blows cold then warm.

http://ricksfreeautorepairadvice.com/car-ac-blows-cold-blows-warm/

Jul 21, 2017 | Volvo Cars & Trucks

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How do i fix my ac


seems that the evaporator is freezing and does not allow the air to passthrough

Jul 16, 2014 | 2008 Hyundai Accent

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Why does my heat blow warm air then it turns cold


its VERY likely that your heater core is getting stopped up.

The heater in your car works by circulating hot water from the engine into a copper or aluminum pipe coiled up in the dashboard. The heater/airconditioner's fan blows across it and the hot air comes out of the vents. This is why the heater doesn't work right away when you first start the car. It usually won't work until the hot/cold needle in the gauges is starting to rise up.

If your mechanic recently replaced the thermostat, its possible that there is air in the system which will result in less antifreeze in the car than it should be. If this is not the case, the heater core is probably stopping up and will require expensive replacement if it cannot be flushed clean.

Check to make sure the car is full of antifreeze IN THE RADIATOR, AND THE OVERFLOW JUG. Please be very sure there is NO AIR in the cooling system as well.

Scott

Jan 22, 2013 | 1998 Ford Expedition

1 Answer

A/c smells funny it seems like the clutch is out


Is system blowing cold air? if low gas system will blow warm and smell, When was the cabin filter last replaced, the cabin filter is used for inside air, make sure its clean,

I would start by having the system checked to make sure the gas is full and dye added so if system goes warm again the dye will show the leak.

Sep 03, 2012 | 2006 Toyota Matrix

1 Answer

What is the problem now? Please can you help?


If you turn on your AC on one day and nothing happens, you may be dealing with a major component failure. Your vehicle's AC system consists of a compressor, condenser, evaporator, expansion valve, a series of tubes and several fans/blowers. If either one of these components fails to do their job, it may result an entire system failure. For example, if the evaporator blower motor burns out, you will get little to no airflow through the vents.
Most modern vehicles also have safety mechanisms that may prevent a component from engaging if the pressure is low in the system due to a refrigerant leak. Refrigerant can leak for many reasons, including undone welds, loose connections, corrosion, physical damage from road debris, etc. Look for oily stains underneath your car, as they may indicate a leak. If you suspect a refrigerant leak, take your car to General Automotive. We will test the pressure and use special dyes to pinpoint the leak.
Warm Air is Coming Out Instead of Cold As you get in your car and turn on your AC, you probably expect it to be blowing hot air for the first minute or two until the system cycles through enough to cool it. But what if the air never gets cold ? Or maybe it it gets cooler, but not cold enough ? No, your car didn't get confused and turned on heat by accident. There is likely a problem with your condenser.
A condenser's job in a vehicle is to cool the warm refrigerant that was used to make the air cold in the evaporator. A condenser has coils and a fan to push the air through the coils and thus cool the refrigerant. If the condenser coils get dirty or clogged, or if the fan fails, the refrigerant won't be cooled completely, so the air will come out warm. It's best to take your vehicle to an experienced AC Repair professional to troubleshoot this problem if you don't know your way around under the hood.
Cold Air Blows Intermittently So you went for a road trip or a long drive, and after 30 minutes of driving realized that your AC suddenly stopped working or switched to blowing warm air. The cold air returns shortly, and the cycle repeats itself for as long as you are driving. What's wrong with your car?
Intermittent cooling is often caused by the components of your vehicle's AC system freezing up. Typically an iced over evaporator is the culprit. An evaporator covered in ice can't cool the air, so you would have to wait until the ice melts, which is why the cold air eventually returns. There may be numerous issues causing the icing-from a dirty cabin air filter to a blocked evaporator drain or an overcharged system. Look for puddles of water under your car-this could be a sign of a freezing problem.

Oct 25, 2017 | 1999 GMC Safari

2 Answers

AC was blowing cold. Now only warm air comes out.


May just need to be recharged, if r34 is too low, ac will not kick in, Wal-mart sells recharge kits and cans of r34 (insctructions are on kit)...expect to pay around $50 total if you do it yourself. If that doesn't work you may have to replace the AC compressor.

Apr 14, 2010 | 1994 Honda Civic

1 Answer

I have an 03 venture 3.4 the problem im having is heating


the air flow does not have any thing to do with the thermostat
make sure you had the right cabin air filter and put in the right dirrection
the air flow is control by three devices calls mode door actuators, if this goes bad then you may not have enough air flow to a certain area

Mar 05, 2010 | 2003 Chevrolet Venture Passanger

1 Answer

My a.c. unit under the hood is cycling cold but I am not getting any cold air in the car. It appears to be blowing outside air in the car. why?


Hi,
It turns out the cars thermostat is sticking, as the engine gets hotter, the ac kicked out. Some sort of sensor turns off unnecessary stuff (like the compressor) to save it. I changed the thermostat, and no more problems. Let the car sit in your driveway idling, ac on. If the ac goes off, spray the radiator with water, and see if comes back on; then it's the thermostat. Another possible thing could be this air filter (cabin filter) is clogged. Usually it is located in the plastic duct work in the car behind the glove box. The filter was put in newer cars to filter out pollen, etc. getting into your car. I would check the cabin filter first. Either blow it out with compressed air to clean it, or leave it out. A new filter runs about $40 and it's a dealership item
Thank You for using Fixya.com

Jul 30, 2009 | Buick LeSabre Cars & Trucks

1 Answer

Air conditioning not working properly


Would have him check out side air temp sensor ,thermister and rerove control head and inspect for burned terminal.1st.

Jun 20, 2009 | 2002 Oldsmobile Silhouette

1 Answer

Intrigue AC?


if you have the filter missing you a/c evaporTOR MIGHT GET DURT AND decrease the air flow, but the cooling should be ok
is it blowing hot air? or the air flow is low?

Jun 17, 2008 | 1999 Oldsmobile Intrigue

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