car stops overheating when ac is on

Have a 2000 subaru outback automatic with 231000 miles whenever I turn the ac on and drive for a about 10 miles the car start overheating if I turn the ac off the temperature gauge goes down. If the radiator is blocked it is unable to be able to pass through the antifreeze and continuous flow of water.

Car Overheats When Ac Is On Symptoms Causes And Fix Guide Auto Trends Magazine

This increased load causes the motor to work harder than it otherwise normally would resulting in the motor overheating.

. The job of the AC compressor is to compress the refrigerant before its fed to the cooling system. 800 400-5050 Find best information about Why does my car overheat when the AC is on Free Consultation 800 400-5050 Lemon Lawyer. Up to 25 cash back I have a 2008 rx400h the ac stopped working and I was told it was the compressor.

I replaced the compressor and had to bring the car back because when I stop at a light the ac stops blowing cold. Changed the thermostat and both fans are working. Why does my car overheat when the AC is on Attorney Jimmy.

A dirty air filter can clog your unit forcing the AC to run longer. Refill the coolant to the proper level. To diagnose this I start by starting the engine and allowing it to warm up.

Wind stream in the cooling framework could be a reason for your auto overheating with the air conditioner on. This is the most common problem that results in car overheating When the AC is on. One is increased engine load caused by a failing AC compressor.

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. When this happens it renders the AC useless and starts to malfunction thus the heat. This can happen when the coolant has lost its anti-corrosion properties.

When the connecting tubes to the radiator start to wear out and are corroded due to rust. This means your car engine will start to overheat if the coolant is not doing a good job. The AC and engine coolant systems are linked by the radiator and condensor which both sit in front of the engine and are cooled by a fan.

The AC requires some extra power from the engine. The electric cooling fan may not be coming on. The problem becomes worse when the car AC is turned on.

This issue occurs when there is not enough airflow through the radiator. An AC recharge is a quick service that can stop your car from overheating when the AC is on within minutes. As the engine starts to overheat the fan should come on.

Plugged or blocked radiator condenser fins fans not working efficiently or a water pump that is not circulating coolant could all cause overheating with AC on only. Keep the Condenser Coils Clean. Check for Low Refrigerant.

There are three principal causes of air conditioning issues in your car all of which can ultimately lead to the AC causing overheating. The other possibility may be a cooling system that is not working efficiently. If the radiator in your vehicle has become blocked it could be the cause of your car overheating when the AC is running.

To get rid of such situation you need to fix the faulty fan as soon as possible. How do I stop my AC from overheating. Check this by setting a pneumatic stress measure toward one side of the radiator and check the weight.

Tighten or replace the belts. If the condensor does not receive adequate airflow the AC system. Engine temperature gauge rising overhea.

Radiators are the most important central station of the engines coolant system. Make sure your antifreeze is fully up to level and if you havent done it in the past 2 or 3. Your AC system is supposed to shut down if the engine is hot as a safety device-make sure when the ac is running the radiator fan is blowing-it may not be caused by either a bad relay blown fuse or a bad fan motor.

If there is a problem with the fan your engine will tend to overheat when in traffic low speed but temps should go down when at highway speeds. 1 The compressor is not turning properly. Clean the Fan.

The condenser coil is located in the outdoor unit and its job is to dispel heat outside. There might be lacking pneumatic stress in the radiator or even a blockage. Engines drive belts may be broken or slipping.

Engine coolant level may be very low. When there is a fault in the compressor and its proving harder to turn as normal then the. Car overheats and AC stops blowing cold then temp.

Most of the time this is caused by an issue with the radiator fan not coming on. Engine overheating with AC on is generally caused by one of two possibilities. Clogged Condenser Just like a faulty compressor a clogged condenser can cause your car to overheat when the air is on.

When the coolant becomes old or dirty it stops cooling your car as a coolant should. Replace the Air Filter. Up to 8 cash back Hello if the car is only overheating when it is not moving then it is usually caused by an air flow issue through the radiator.

Up to 8 cash back When the AC compressor is beginning to fail this may incur an increased load on the motor as it works harder than usual to turn a bad compressor. What to do if your car overheats or is overheating when sitting in traffic not moving at idle or with the AC on. Maybe this may help the ac compressor does not turn off when the ac is on and if I am going down the hill I shift the gear.

Car Overheats When Ac Is On Symptoms Causes And Fix Guide Auto Trends Magazine