My Car Started Shaking Then Died – Causes & Solutions 2022

Why did my Car Suddenly Start Shaking Then Died?

It sucks when you are in a hurry, and you start the car, and your car starts shaking then dies out, and you don’t know what to do or what is the reason for this. But before going any further, here is a word of wisdom.

It is essential that you know that if you have not succeeded in starting your vehicle on the first three tries. Don’t keep on struggling with the keys and the engine, as this can escalate into something much bigger. So, instead of that. Here are some possible problems and their solutions that might help you.

1. Malfunctioned MAF Sensor:

MAF stands for Mass Air Flow. This sensor calculates the quantity of air inside the car engine. When it malfunctions, the readings and calculations of MAF are affected.

When dirt gets rilled up on the MAF and sometimes sabotages the correct air calculations in the car engine. So, when someone tries to start the ear with a bad MAF sensor, it shakes and dies out.

You can use MAF sensor cleaners to wipe off these dirt particles and rid the engine of any possible source of contamination. By doing so, if there isn’t any other problem with the MAF sensor, the problem would be solved.

2. Displaced Timing Chain/Belt:

The Timing chain/belt controls the coordination of the exhaust valves and the engine combustion. In simpler words, this belt synchronizes the camshafts with crankshafts. When it malfunctions, the coordination between these is severely affected.

When there are wrong timings between the opening and closing of the exhaust valves and the inflow of air combustion, the engine starts to shake and then die out when you try to start your vehicle.

There is a phrase called “skipped a tooth,” which refers to the timing belt getting loosed. The reason can either be imprecise tensity methods.

Solving this problem is a bit technical and requires expert mechanic supervision. Unless you know the advanced techniques yourself, consider seeing a mechanic and getting the timing belt replaced or tightened.

3. Inerted Air Control Valve:

The Air Control Valve controls and maintains the uninterrupted inflow of air to the car engine. It is responsible for controlling the AC of your vehicle, the FM radio, and the headlights.

Upon this valve’s failure, it is highly likely that your car will start shaking, and in the worst-case scenario, the vehicle won’t start at all. The simplest solution would be cleaning.

Yes, if it only needs to be cleaned, and after that, it starts working correctly, then you are good to go. But if it does not rid you of the issue, consider replacing the valve, as it is possible that the control valves have collapsed due to an electrical issue and need to be replaced.

4. Worsened Camshaft Position Sensor:

The camshaft position sensors are responsible for fuel delivery and ignition timings. Basically, these sensors provide information to the Engine Control Unit on the exact positions of camshafts.

As long as this info is coming smoothly from the sensors to the Engine Control Unit, everything is good, but things start to go south when disruption in these signals occur. It is simple to understand if the Engine Control Unit is not receiving these signals, the engine’s performance is affected.

So, when you try to start the car, it starts shaking and sometimes collapses. The Engine Control Unit will let you of the problem as soon as possible. Take this issue seriously and locate the core of this issue.

Check if there is deterioration among the sensor wires, as it may be causing all this mess. After taking a detailed look, you would be able to tell if it can be repaired or it needs changing.

5. Worsend Vacuum Leak:

You probably know the meaning of a leak. You just read that ECU controls and measures the inflow of air in the engine when that air passes through the throttle body. In case of a leak, unwanted and non-measured air starts to get inside the engine, and the ECU becomes unable to measure it correctly.

It is no rocket science, the vacuum leak allows a lot of air into the engine, more than it needs, and as you all know, excess of anything is bad. That is what happens with cars when ECU cannot measure all the air inflow.

However, if vacuum leaks are negligible and small, then there is no need to worry for some time, as your car can still run smoothly, but if left unchecked for long, the leak would expand and create irreversible problems.

How do you know if there is a leak? You can go for a smoke test, where the smoke is pumped through the air inflow route in the engine and would simply come out of any possible leaks. That’s how you would know.

You can either go to the mechanic to close off any possible source of a leak or if the problem still persists, consider replacing the car vacuums.

6. Fuel Injector Problem:

The job of fuel injectors is to supply the needed fuel to the car cylinders by high pressure. These injectors are responsible for good and stable engine performance. To carry out this job, they need specific pressure, and they stay in close contact with the ECU.

Its sensors keep up with the quantity of pressure and reports to the ECU. Then ECU alters and adjusts the pressure. When this sensor malfunctions, the right quantity of fuel inflow in the car engine is affected. This means the car will start shaking and may die out.

Fuel injectors are among the most essential parts of the car engine and must not be left with this sensor issue. Immediately replace the fuel injector sensors to kill the nib in its bud.

7. Pump Leak:

Yet another leak in the car engine is the fuel injection. Any sort of leak in this system results in an affected ignition process. When this pump malfunctions or has a leak, not enough quantity of air reaches the engine and create issues.

The lesser fuel reaches the engine, the more affected engine’s performance would be. It is recommended to find the leak as soon as possible and fix it. But when the leak has gotten out of control (unfortunately). You must change it with expert supervision.

8. Combustion Problem:

This system initiates the ignition spark that mixes the fuel and air in the car engine. When you face this problem, such as car battery deterioration or plugs. Then it is possible that the system is becoming unable to produce the needed intensity of the spark. That is why not enough ignition is reaching the car battery and plugs.

Take a good look at those spark plugs and see if there is something unusual. Fix those plugs to the extent that you can and if that does not solve the problem change them to prevent further damage.

9. ECU Problem:

Yes, the system that controls everything can also malfunction. How? There can be many reasons for this issue but the most probable one seems to be the fuel injector issue. Do NOT ignore the ECU problem at all, because, without it, the whole engine may collapse.

However, you can prevent all this from happening at all by keeping the car engine systems in good health. But if you happen to come across this issue, replace the Engine Control Unit.

10. Worsened Carburetor System:

However, this problem is generally of the old cars and is pretty unlikely in the latest cars but it is important to address it. This system adjusts the air and fuel proportion for the correct ignition.

A worsened carburettor will severely affect this proportion. And it needs to be replaced.


These were the ten possible issues why your car may start shaking and then die out. We have provided their most logical solutions. There can be other problems with the car engine.

Let us know in the comments about your further queries. Thank You.

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