When the cold season hits, car owners all over the world face the same problem: a car that won’t start when cold, but runs fine when it warms up. This common problem can be caused by a variety of factors and can be frustrating to deal with. This article will look at the various causes of this issue and how to fix it.
Also Read: Car Hesitates To Start But Runs Fine
Why Is My Car Hard to Start When Cold?
There are many reasons why your car might be hard to start when cold. The most common causes are:
1. Low Battery
If your battery is not powerful enough to provide the necessary voltage to start your engine, it can be hard to start when cold. This could be due to the battery being old or having a low charge.
Also Read: Best Battery for Subaru Outback
2. Faulty Ignition System
Due to faulty ignition system, it can be hard to start when cold. This could be due to a faulty spark plug, bad wiring, or a faulty ignition coil.
3. Bad Fuel System
If your fuel system is not working correctly, it can be hard to start when cold. This could be due to a clogged fuel filter, bad fuel injectors, or a bad fuel pump.
4. Low Oil Pressure
Low oil pressure can cause your car to be hard to start when cold. This could be due to a leaky oil filter, a low oil level, or a faulty oil pump.
Related oil filter: Can I Change Oil Filter Without Changing Oil?
5. Dirty Air Filter
Sometimes a dirty air filter can bet it harder to start the engine in cold seasons. This could be due to a buildup of dirt and debris in the air filter, which can restrict the airflow to the engine.
Also Read: Car Struggles To Start But Runs Fine
How to Fix a Car That Is Hard to Start When Cold
It can be extremely frustrating when you get into your car and it won’t start. If your car is hard to start when cold, it could be a sign of an underlying issue. Fortunately, there are a few things you can do to get your car started and keep it running smoothly.
1. Check Your Battery
The first step to take when your car is having trouble starting is to check the battery. It could be that your battery is low on charge and needs to be replaced. You can check the charge by using a multimeter to measure the voltage of your battery. If the voltage is below 12 volts, then it’s time to replace the battery.
2. Check Your Spark Plugs
If your car is hard to start when cold, it could be due to worn out spark plugs. Spark plugs are responsible for igniting the fuel and air mixture inside the cylinder, and if they are worn out, the car will have trouble starting. To check the spark plugs, you’ll need to remove the spark plug wires and inspect them for any signs of wear. If they are worn out, they should be replaced.
Related Spark Plugs: How Long Can You Drive With Bad Spark Plugs
3. Check Your Fuel System
Another common cause of a hard-to-start car is a clogged fuel system. If your fuel filter or fuel injectors are clogged, then it can be difficult for the fuel to reach the engine and ignite. You can check the fuel system by using a pressure gauge to measure the fuel pressure. If the pressure is lower than it should be, then you’ll need to replace the fuel filter or fuel injectors.
4. Check Your Ignition System
The ignition system produces the spark that ignites the fuel and air mixture in the cylinder. If the ignition system isn’t working correctly, then it can be difficult for the car to start. To check the ignition system, you’ll need to remove the spark plug wires and inspect them for any signs of wear. If the spark plug wires are worn out, then they should be replaced.
5. Check the Compression
The compression in the engine is responsible for creating the pressure needed to ignite the fuel and air mixture. If the compression is too low, then the car will be hard to start. You can check the compression by using a compression tester to measure the pressure in the cylinders. If the pressure is too low, then you’ll need to repair or replace the engine components that are responsible for creating the compression.
These are just a few of the things you can do to fix a car that is hard to start when cold. If you’re having trouble diagnosing the issue, then it’s best to take your car to a qualified mechanic who can help identify the problem and get your car running again.
Now you know what is the reason for a car’s starting problem in cold weather but how to figure out the reason. Here are tips may help you.
- Check for any loose or disconnected wires in the engine bay.
- Check the fuel filter for any signs of blockage.
- Inspect the spark plugs and spark plug wires for signs of wear.
- Inspect the ignition system for any issues.
- Check the engine compression with a compression tester.
- Check the battery terminals for signs of corrosion.
Also Read: Car Starts After Disconnecting And Reconnecting Battery
If your car is hard to start when cold, then there may be an underlying issue that needs to be addressed. By following the steps outlined above, you should be able to identify the problem and get your car running again. If you’re still having trouble, then it’s best to take your car to a qualified mechanic who can diagnose the issue and get your car running smoothly.
Originally from England, I’ve been repairing cars for over 16 years and am an automotive journalist. I’ve been working on cars for as long as I can remember, and it’s one of the best jobs I’ve ever had.
It is my intention to be your mechanic friend, that person who will assist you with any problem you may have with your vehicle and explain in detail how the problem can be fixed to you as soon as possible.
I produce and anchor a weekly auto news program. As well as providing insights into all things automotive, including expert analysis of the latest trends in the automotive industry, and ensuring you always know where to go for the latest automotive news, I also provide insight into all things automotive before the news breaks.
If I am not working, I am a riding motorcyclist and I do volunteer work with local charities whenever I have time. When I’m not riding my motorcycles or volunteering at local charities, you will find me at home in Portland, Oregon.