Why does my car overheat when AC is turned on?
Everyone knows how harmful it is to overheat your car’s engine. First, I would like to know what the problem is causing. Here’s how to check the causes of the top and fix them. We also answer some questions you can ask yourself.
Causes of car overheating when AC is turned on
Only if the car overheats while the air conditioner is on can the motor be too loaded. Mechanical issues can also occur such as B. Failures due to capacitors, overload compressors, defective temperature sensors, or bad fan. Otherwise, it could be just an incompetent alternating current system.
1. Increased engine load
Your car’s engine can be so mastered. Pushing the car over the boundary can cause the engine to start overheating. Running the air conditioner adds the load to create the engine. Towing this together with heavy loads can cause the temperature to rise slowly. If you have ruled out mechanical errors, you can check how you use your vehicle. It is very possible to expect many of the cars you have.
2. Capacitor installed in front of the cooler
The cool capacitors are cool so you can steal the cold air from the town he has to go to. There is not enough cold air, making it even more difficult to keep the engine temperature low.
Furthermore, capacitor failure is always possible. Dirt and contamination tend to accumulate in the fins. If the fins are clogged, heat transfer is not generated very efficiently.
3. An incompetent cooling system
If you have nothing wrong with your capacitor, you may only have an incompetent cooling system. A broken water pump can often be blamed. If you need a water pump, you cannot replace the heat thoroughly.
Also, proper cooling may not be sufficient coolant in the tank. In other situations, a lack of interceptors can put more stress on the system than it needs. 4. Overload alternating current compressors
If alternating currents are on, the compressor places additional load on the engine. When you turn on the air conditioner system, you can see this by looking at the speed. If a compressor appears or the accessory belt stops spinning, an error can occur. The engine starts to overheat very quickly.
5. Bad cooler fan
A cooling fan is required to keep the temperature low. If the cooling fan fails, the engine will overheat. However, as the speed of the car flows through the air, you may not notice it much when you drive down the highway.
It’s most impressive when you run the air conditioner in traffic jams. It can also occur when you drive slowly and you don’t get the air you need from the cooler.
6. Faulty Engine Cooling Temperature Sensor
The engine coolant temperature sensor is responsible for notifying the control module if the cooling fan needs to be turned on. If this fails, the engine can overheat.
If the temperature sensor does not send the correct signal, the coolant will not flow as needed. Using alternating currents and excessive loading of the engine can make this even worse.
How to repair a car that overheats when turning on AC
As soon as the car starts to overheat, I want to diagnose the problem immediately. It is important to prevent the engine from overheating as permanent damage can occur quickly. There are a few steps that will help you know what’s going on.
1. Check the coolant
It is best to start at the coolant level before taking the extensive steps. It’s very likely that it needs to be used a little more.
1) If the vehicle is cool, check the coolant.
2) Find a coolant reservoir. It is under the hood, usually the front or side of the engine.
3) If the reservoir is transparent, you should be able to see the level on the page. There should be cold and hot lines printed on the side.
4) When cooled along with the engine, the liquid should reach the cold line. If not, you will need to add more coolant.
5) Remove the cap and add the correct frost protection mix for your vehicle.
If the coolant is low, you should also check the leakage system. Over time, seals, seals and hoses can be exhausted so that liquids are pushed out. It is important to repair these leaks before adding any liquids. Otherwise, you will land on the same boat later.
2. Make sure the cooler and capacitor are not damaged
Next, I would like to run a review of the cooler and capacitors. Here are some tips to consider.
1) Use a flashlight. It may be dark if the cooler tank is.
2) Check the cooler and capacitors in all wet areas. This issue indicates penetration and damage.
3) Look at the cooler and get signs of leaks.
4) Check the hose clamps at the top and bottom of the cooler. Choose them as needed.
5) Check the cooler and capacitor fins to make sure they are not blocked or damaged.
6) Open the oil measuring rod and make sure there is no coolant in the engine.
If you notice any damage, repair it immediately. When it comes to the cost of a cooler or capacitor, you can save a much higher invoice than replacing a motor.
3. Check the cooler/AC capacitor fan
Most radiators today have electric fans. These fans allow you to test your operation using a multimeter.
1) Turn off the car engine.
2) Find the safety box. It is usually located under the dashboard.
3) Set the multimeter to DCV (DC voltage). Select the most suitable area for the 12-V circuit.
4) Set up a negative multimeter with a negative battery connection.
5) Connect the RED multimeter guide to the cooling reserve safety contact.
6) If the reading is about 12V, the fuse is fine. Otherwise, the blown backup will show a 0V reading on one page. 0V reads for both contacts means they have no protection.
Aside from the blown backup, the fan can’t work because there are things to keep it. For all the ruins that stop it, physically check the fans and clean them if necessary.
4. Alternating current systems filling and diagnostics
If you may be missing alternating transformations, fill in it. We want to ensure that alternating current systems work best to reduce engine load. Apart from that, I would like to fix all the mechanical issues you found. For the correct car instructions, please refer to the car service book.
5. Connect the OBD scanner
Giving a warning light on the dashboard will help your code scanner know what’s wrong. Close the compatible OBDII scanner to the connection under the steering wheel.
You need to clarify the code or code that can be used to determine the problem. Refer to the information received in the Peel Online Error Codes Library to fix the issue.
6. Please contact our specialist
Not everyone understands the basics of a cooling system, and that’s fine. If you’re not sure where to start, look to your local mechanics and get more help. Even if you know what’s wrong, you may have the problem above your head or you may not have the equipment you need.
Can a bad alternating current compressor overheat the car?
The compressor does not cause any direct errors that overheat the engine. However, if the compressor cupboard works without functioning properly, the engine will be available. This problem can quickly lead to an overheated engine.
AC Does AC make the engine hot?
The air conditioner sets an additional load on the engine. some cases, the engine can prevent the air conditioner system from switching.
Does AC turn off AC overheating?
If the cooling system gives an error, the alternating current systems will not make a difference or change the problem. However, by turning off alternating currents, you can reduce the load on the motor. This simple change gives you a little more time to go home without overheating the engine. With the first sign of an overheated engine, we would like to take measures. Your quick attention can cause differences, fix small mechanical problems and replace the engine.
