How To Diagnose Problems If Your Car Won’t Start?

How To Diagnose Problems If Your Car Won’t Start?
How To Diagnose Problems If Your Car Won’t Start?

It’s unpleasant and annoying when you’re in a hurry and your car won’t start. No matter how many times you turn the key or click the beginning button, nothing happens. Don’t worry; this occurs to the vast majority of drivers at some point.

How can you tell what’s wrong if your car won’t turn over? This essay will examine a few simple problems and provide a detailed description of each. This is the starting point.

Diagnose starting issues

When you turn on the car, warning signs will appear. See the items listed down below.

1. No noise

If you don’t hear any clicking, rattling, or other sounds when you turn the key, there may be a problem with the battery connection.

2. Fast clicking noise

This is usually a sign of a problem with the power grid. Possible causes include a malfunctioning alternator or a weak battery.

3. Single click

It’s not evident if the starter is the problem or not.

4. Engine cuts out

There is a brief roar as the car’s engine starts up, and then it turns off again. This action is caused by either a malfunctioning carburetor or a defective fuel injection system. Also, a flooded engine could be the source of the gasoline odor.

5. Engine does not start even it cranks

Clogged fuel filters, flooded engines, or running out of gas could all be at blame.

Some specific reasons why your car won’t start

1. Is there any cranking sound from the engine?

Without the engine, the car would be useless. Turning the key may result in a cranking sound if the battery voltage is low. In addition, the starter could be at fault.

You should check the battery to see if it is fully charged and in excellent condition if the device is not generating any sounds. The battery jumpstart kit, on the other hand, requires the usage of a separate car. It is possible to replace the current battery with a new one if you have access to a backup.

However, suppose neither of those factors is at blame. Then let’s go ahead and examine the battery or the starter. Check the cables first and check how they perform. You probably already know that there are two wires on a standard starter: the bigger b+ wire and the smaller negitive (-) wire that connects to the battery.

If you want to make sure the engine is properly grounded to the chassis, you can use the jumper cord to do so. It is linked to the negative terminal of the battery and the engine ground.

Also, use the multimeter to check both the large and small wires. The ignition must be in the starter position for the little wire to be tested, and the bare minimum is 12V. A problem with the large cable’s amperage or the beginning itself is more likely if the ground is good and the voltage across both wires is 12V.

Here is where you should conduct load tests to make sure the starter cable won’t break with the weight of the engine’s initial acceleration. Even if the test passes and the small wire is getting 12V, the starter may still be damaged and need to be replaced.

If the small cable is not providing 12V, the problem lies with the initialization signal. The ignition fuses, starter relay, and starter wires should all be checked to determine the source of the problem.

2. Test the spark plugs

In most cases where a car refuses to start, the problem lies in the spark. One possible cause is a faulty spark plug, ignition cable, or ignition coil. However, this is frequently the result of a flooded gasoline engine. When the car’s engine is shut off before it has completely cooled down, this can happen.

It’s more of a hassle to try to restart the engine once unburned fuel has wet the spark plugs. Turning the key and hearing a quick cranking could indicate that the engine is flooded. And you may detect a gas station aroma.

When the coil or cable is taken out, the spark can be examined. Get someone to turn the engine’s crank for you before you check the spark. Remember that touching the spark directly could result in a painful electric shock.

3. Is the battery faulty, dead, or flat?

One of the reasons the automobile won’t start is a dead battery. Over half of all reported events were related to batteries. How come a car’s battery can only hold a charge for so long?

The reasons behind this were numerous and varied. Having not driven the car in a while and/or faulty battery components are two possible explanations. It’s also likely that some of the car’s electrical accessories were left on, thus draining the battery.

In the event that a jump start doesn’t work, taking the car to a professional mechanic is your next best chance. If this happens, you should get a new battery for your car.

4. The battery connection might be bad

Some people might not agree with this explanation, yet it does come up rather often. In the event that the battery cable is damaged or missing, the car will not turn over. The ignition key won’t turn because the battery’s connection has been corroded by years of use.

5. Check the ignition button

When the key is turned on, electricity from the battery is sent to all the car’s systems. This prevents any possible rescue of the vehicle in the event of a breakdown. The problem is not widespread, but it should be monitored for potential deterioration.

Some of the signals of trouble you may be receiving from your vehicle include:

  • The key won’t turn for the life of me.
  • The vehicle cannot be started under any circumstances.
  • The command center shows no signs of life.
  • The car’s dashboard may light up briefly.
  • The operation of the motor is completely silent.

If the switch is still on, the pump needs to be on all the time. Potential cause: faulty ignition switch.

Bottom line

In general, there could be a variety of issues keeping your car from starting. If you’ve tried to start your car but been unsuccessful, perhaps you’ll be able to figure out what’s wrong with the help of the advice provided here. It’s important to keep in mind that the problem’s symptoms will be same no matter what the cause is. It is strongly recommended that a professional examine it and perform any necessary repairs right away.

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