car starts overheating when ac is on

Up to 8 cash back James R. Engine overheating with AC on is generally caused by one of two possibilities.

Car Overheating When Ac Is On Car Engine Overheating Causes And Symptoms Of Over Heating Car Engine Youtube

Car Overheats When AC Is On.

. First thing you should test the fan and auxiliary fan if equipped. Only one fan is on at all time. I cant say I totally solved the problem but nowadays it rarely overheats with the AC on.

When the connecting tubes to the radiator start to wear out and are corroded due to rust. Lighten the load and back off the gas. Another common reason a car overheats with the AC on is because of a bad water pump.

A cooling system replacement is in order. When you turn on the ac the fan should start. Top 10 reasons that your car ac isnt cooling enough.

Ac blowing hot air car overheating. Dont ever drive an overheating car or allow it to overheat--stop when that needle moves and if it always moves dont drive it. To get rid of such situation you need to fix the faulty fan as soon as possible.

First either the refrigerant is unable to absorb the heat from the car interiors. When this happens it renders the AC useless and starts to malfunction thus the heat. If one fan is not working you can check for a faulty fuse in the fuse box.

And test if it works at full speed when the AC is. Car starts to overheat with ac running when u r at idle i believe it is normal for the car our older engines to heat up a little even with the fan on especially on hot days and if youve been driving for a while but the problem with the air coming out warm when u r idling im not sure cuz i get cold air all of the time u might need a recharge of r-134a. This can happen when the coolant has lost its anti-corrosion properties.

The radiator or block may be clogged. Keithert Egg Lover. If you notice a burning smell it is a sure sign of an overheated engine.

By shadowk1ller566 Topic starter 17082021 525 pm. Car overheats with AC on. This is the most common problem that results in car overheating When the AC is on.

A malfunctioning AC compressor puts plenty of extra load on the engine. Check the radiator for any clogs and obstacles that can block the flow. The reason youre car is more prone to overheating with the AC on has to do with the heat exchangers radiators on the front of the car.

One is increased engine load caused by a failing AC compressor. I left the car for 3 minutes without AC on and the cooling did not move but moves if I switch on the AC. This issue occurs when there is not enough airflow through the radiator.

Joined Jul 26 2001 451 Posts. It runs at normal operating temperature. Additionally try to get the radiator out every.

What you see as one big radiator is actually composed of 3 distinct sections AC Condensor engine coolant radiator and transmission cooler. Corolla it runs perfectly fine without the ac on but when I put on the ac on a hot afternoon in traffic the car starts. HELP it is too hot out for this.

Any of the above causes for overheating on short trips. 27 years of experience. Discussion Starter 1 Jun 22 2002.

The radiator is partially restricted. And thats whats causing the engine to. When an engine overheats materials like rubber plastic and resin inside your engine start to melt.

Check the water pump for erosion on the internal fins. And the engine starts to overheat. I had the same issue on my Toyota with the car overheating once the AC goes on.

The AC compressor adds rotational load to the engine and if the compressor is wearing and becoming increasingly harder to turn. Temp didnt budge from center. It used to take about 10 minutes to overheat.

Your Honda has an electric fan on the radiator and if this fan is not working your car will overheat. The AC works well until the needle starts climbing. Jump to Latest Follow 1 - 9 of 9 Posts.

Search and you will find loads of information. When there is not enough air flow through the radiator this causes blockage in the fins and as a result the car overheats when AC is on. Cooling fan works in idling when AC is on but not when AC is not on.

When the system is not calling for cooling the air that is circulated can feel warm coming out of the. Any idea what could cause this. The car is overloaded or being driven too hard.

Up to 8 cash back When AC is on the I can drive the car a for about ten minutes without overheating but when the AC is off overting starts in less than 4 minutes. Oil and leaking coolant could be burned as well. Reverse flush the cooling system and fill with fresh coolant.

My problem turned out to be the electrical connector to the aux fan. Along with odors the hood of your car will be hot to touch. The cooling system is another component to examine if your car overheats when AC is on.

The reason behind the car overheating when the ac is on and idling can be a fault in the second fan. When the AC is turned on the heat released from the condenser located in front of the radiator reduces the radiators abililty to remove the heat. As the condenser starts overheating the components down the.

You can quickly check the fans of your radiator if they are working or not. I drove for maybe 30 min and it started to overheat but as soon as I turn off the ac the temp starts to drop. When there is not enough air flow through the radiator this causes blockage in the fins and as a result the car overheats when AC is on.

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