What You Should Do If Your Car Won't Start

Having a car that won’t start can be a frustrating experience. Whether trying to get to work on time or embark on a road trip, a car that won’t start can disrupt your plans. But before you panic and call for a tow truck, it’s important to understand why your car won’t start in the first place. This issue has several reasons, ranging from simple fixes to more complex problems. In this article, we will explore the common reasons why a car won’t start and provide you with the necessary steps to diagnose and resolve the issue. So, let’s dive in and explore what to do if your car won’t start.

Common reasons why a car won’t start

There are several common reasons why your car may refuse to start. One of the most common culprits is a dead or weak battery. If you make a clicking noise when you turn the key in the ignition, it’s likely a sign that the battery is the culprit. Other possible causes include:

A faulty starter motor.
Issues with the fuel system.
Problems with the ignition system.
A faulty alternator.
Even running out of gas.

Checking the battery and connections

When faced with a car that won’t start, it’s important to start by checking the battery and its connections. Begin by visually inspecting the battery terminals for any signs of corrosion or loose connections. Clean the terminals using a battery terminal cleaner and tighten any loose connections. Once the connections are secure, test the battery’s voltage using a multimeter. A healthy battery typically registers a voltage of approximately 12.6 volts. The battery must likely be charged or replaced if the voltage is significantly lower.

Next, try jump-starting the car using jumper cables and a functioning vehicle. Attach the positive cable to the positive terminals of both batteries and connect the negative cable to the negative terminals. Start the functioning vehicle and let it run for a few minutes before attempting to start your car. If your car starts, it indicates that the battery is the problem.

Testing the starter motor

If the battery and connections are not the issue, the next component to check is the starter motor. Begin by locating the starter motor in your vehicle (refer to your owner’s manual if necessary). Once you’ve found it, tap on it lightly with a wrench or hammer. Sometimes, the starter motor gets stuck, and a gentle tap frees it up and allows your car to start. If tapping doesn’t work, you can also try giving the starter motor a few firm hits to see if that resolves the issue.

If tapping or hitting the starter motor doesn’t work, you may need to test it using a multimeter. Disconnect the battery and the wires connected to the starter motor. Set your multimeter to the resistance setting and attach one probe to the starter motor terminal while touching the other probe to the starter motor case. If the multimeter reads zero resistance, it indicates a short circuit, and the starter motor will need to be replaced.

Checking the fuel system

If the battery and starter motor are functioning properly, the next area to check is the fuel system. Start by ensuring that you have enough fuel in your tank. It may sound obvious, but running out of gas is a common reason a car won’t start. If you’re sure you have an adequate amount of fuel, inspect the fuel pump and filter.

The fuel pump transports fuel from the tank to the engine. If it’s not working correctly, your car may struggle to start or not start at all. To test the fuel pump, listen for a humming sound when you turn the key in the ignition. If you fail to hear any sound, it’s probable that the fuel pump is defective and requires replacement.

Similarly, the fuel filter can become clogged over time, preventing fuel from reaching the engine. If you suspect a clogged fuel filter, it’s best to have it replaced by a professional.

Troubleshooting the ignition system

If the battery, starter motor, and fuel system are all in working order, the problem may lie in the ignition system. The ignition system produces a spark, initiating the combustion of the fuel-air mixture in the engine. A faulty ignition system can prevent your car from starting.

Begin by checking the spark plugs. Remove one and inspect it for damage or wear. If the spark plug is dirty or covered in carbon deposits, it may need to be cleaned or replaced. Additionally, check the ignition coil and switch for any visible signs of damage or malfunction.

If you cannot identify any issues with the ignition system, you may need to consult a professional mechanic for further diagnosis and repair.

Dealing with a faulty alternator

While a faulty alternator typically won’t prevent your car from starting, it can cause the battery to drain and ultimately render your car unable to start. The alternator charges the battery while the engine operates. If the alternator malfunctions, the battery might not receive adequate charging.

To assess the alternator’s condition, initiate your vehicle and employ a multimeter to gauge the voltage across the battery terminals. A functional alternator should produce a voltage reading between 13.5 and 14.5 volts. If the reading is considerably lower, it indicates a faulty alternator that needs replacement.

What to do if you run out of gas

It happens to the best of us – running out of gas. If your car won’t start and you suspect you’ve run out of fuel, the solution is simple: get more gas. If you’re near a gas station, walk or call for assistance to bring you a gas canister. If you’re far from a gas station, you may need to call for a tow truck to transport your car to the nearest gas station.

Once you have enough fuel, turn the key in the ignition a few times without starting the engine. This will allow the fuel pump to prime and ensure fuel is properly delivered to the engine. After a few attempts, start your car as usual.

When to call a professional

While many car starting issues can be resolved with a little troubleshooting and DIY repairs, there are times when it’s best to leave the job to a professional. Here are a few situations where you should consider contacting a mechanic:

Electrical problems: If you suspect that the issue is within your car’s electrical system, it’s best to seek professional help. Electrical problems can be complex and require specialized knowledge and equipment to diagnose and repair.
Complex engine issues: If you’ve exhausted all the common troubleshooting steps and your car still won’t start, there may be underlying engine problems. A professional mechanic possesses the skills and knowledge to diagnose and repair these problems.
Lack of experience: If you’re unfamiliar with car mechanics or lack the necessary tools, attempting complex repairs can do more harm than good. It’s better to leave it to the professionals to avoid further damage.

Preventive maintenance tips to avoid car starting issues

While it’s impossible to eliminate the risk of car starting problems, you can minimize the chances by following these preventive maintenance tips:

Regularly check your battery: Inspect the battery terminals for corrosion and tighten them if necessary. You might want to consider employing a battery charger to keep the battery charged when it’s not in use.
Keep an eye on the fuel level: It’s always a good practice to keep your fuel tank at least half full. This reduces the risk of running out of gas and helps prevent sediment buildup in the fuel system.
Replace worn-out components: Spark plugs, fuel filters, and other parts of the ignition and fuel systems have a limited lifespan. Regularly check and replace these components as recommended by your vehicle’s manufacturer.
Stay on top of oil changes: Routine oil changes are essential for maintaining your engine’s health. Low oil levels or dirty oil can result in engine damage and impact its starting capabilities.
Have your car inspected regularly: Schedule periodic inspections with a qualified mechanic to catch potential issues before they become major problems. They can identify and address any problems with emerging car starting.

Following these preventive maintenance tips can greatly reduce the likelihood of encountering car starting issues.

FAQs about What to Do If Your Car Won’t Start

How long can a car sit without starting?

Cars can typically sit for about two weeks without being started before the battery begins to lose charge. However, the exact duration may depend on various factors, such as the battery’s age and the ambient temperature.

Can a blown fuse prevent a car from starting?

Yes, a blown fuse can prevent your car from starting. Fuses are designed to protect electrical s from damage. If a fuse related to the starting system blows, it will disable the ignition and prevent the car from starting.

What should I do if my car makes a clicking sound but won’t start?

A clicking sound when you turn the key in the ignition often indicates a dead or weak battery. Check the battery connections and voltage. If necessary, jump-start the car using jumper cables and a functioning vehicle. If the problem persists, consult an expert mechanic.

Can a bad alternator cause a car not to start?

While a faulty alternator won’t directly prevent your car from starting, it can cause the battery to drain and result in a non-starting car. The alternator charges are to charge the battery while the engine is running. If the alternator malfunctions, the battery may not receive the correct charge.

How much does it cost to fix a car that won’t start?

The cost of repairing a car that won’t start can vary greatly depending on the underlying issue. Simple fixes, like charging a dead battery or replacing a blown fuse, may only cost a few dollars. However, more complex issues like a faulty starter motor or alternator can cost several hundred dollars to repair.

Conclusion: Being prepared for car starting problems

A car that won’t start can be a major inconvenience, but it doesn’t have to ruin your day. Understanding why a car won’t start and following the troubleshooting steps outlined in this article can save you money, time, and frustration. Remember to stay calm, assess the situation, and use preventive maintenance tips to minimize the chances of encountering car starting issues in the future. If all else fails, don’t hesitate to seek the assistance of a qualified or expert professional who can diagnose and resolve the problem. With the right knowledge and preparation, you’ll be back on the road quickly.

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