Having a car that refuses to start after filling it up with petrol is a real pain. When you fill up the tank and nearly immediately leave the gas station, the vehicle will sometimes sputter, miss, or hesitate when you are driving.
A lot of the time, the engine just shuts down. Aside from the inconvenience of being stranded, your progress has been severely hampered.
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In order to start and warm up smoothly, an engine needs a rich fuel mixture. But when the vehicle shakes or sputters, what should you check for to identify the problem? As a starting point for figuring out what’s causing the problem, this piece can be helpful.
1. Low-quality fuel
When the car stalls when refueling, this is a common culprit. Over time, a fuel tainted with harmful additives will harm your vehicle in a variety of ways.
2. Contaminated fuel
After refueling, if the automobile won’t start or shut down, it’s possible that the fuel has been contaminated with other kinds of fuel or with water. As soon as you finish recharging, you may feel one or more of the following symptoms:
- Misfiring, backfiring, or pinging;
- The engine is harder to start than usual;
- The engine is running rough or not performing;
- Engine check light is illuminated.
A towing company, service provider, or local mechanic can all verify whether or not you’ve added tainted fuel to your vehicle.
To avoid having to drive your car into a mechanic or repair shop, you should either contact for roadside help or arrange to have your car towed to a business that can handle the repairs. With this in mind, it is possible to discover contaminated fuel by utilizing vehicles equipped with detectors.
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After you’ve drained the contaminated fuel, you may need to clean the tank, depending on the degree of contamination. All sludge, residue, and other pollutants should be removed from the tank before introducing new clean gasoline.
3. A bad fuel pump
Fuel pressure is critical for a vehicle to start. When the engine is running, the fuel pump blocks fuel from traveling from the tank into the combustion chamber.
In other words, because the pump has a higher mileage than the car, it is more likely to break down over time. Even after refueling, a car with a bad gasoline pump will still stall.
There are safety systems built into cars that use electronic control units (ECUs). Even if the engine is running, an ECU will cut power to a faulty fuel pump.
4. A bad or failing Electronic Control Unit
Even though it’s a rare occurrence, a malfunctioning ECU can tell the fuel pump or another component of the car to shut down.
If you want accurate results, you’ll need to take your automobile to an authorized dealer who can utilize the original software that came with it.
5. Evaporative control system
The evaporative control (EVAP) system, which includes the plunger valve, is another major culprit when it comes to cars stalling after being refilled. This system is designed to capture, purify and store any fuel that leaks from the storage tanks.
Having an air leak in the evaporative control system might cause a problem with the mass airflow (MAF) sensor, which is responsible for determining how much air is entering the engine. It is also possible that the manifold absolute pressure (MAP) sensor may be unable to accurately measure the density of the air.
This could result in under or over fuelling, depending on the size of the air leak and the engine’s operating loads and speeds. Also, the catalytic converter may have been harmed. A faulty fuel or refuel cutoff valve prevents fuel from flowing, and a faulty refuel valve stops the gas pump, resulting in a stall in the vehicle..
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For this problem, the ideal solution is to have a professional mechanic diagnose the starting and stalling difficulties.
6. A faulty fuel gauge
An electronic fuel gauge increases the odds of this occurring even further. Somehow, when filling up, the gauge does not work properly and can send misleading signals to the ECU indicating the car lacks fuel, causing the vehicle to stall for safety reasons. This is a problem.
Some helpful tips when adding gas
Allowing the pump to shut off on its own once the tank is full is the best you can hope for. After the initial shut-off, do not add any additional fuel. The evaporative emission systems can be damaged if the tank is overfilled by filling it to the brim.
To avoid reluctance, the system is designed to process fuel vapor rather than liquid fuel. Fill the tank to the point where the pump stops working when you next go to the gas station. Please refrain from refueling after the pump has stopped working.
Bottom line
No one enjoys putting off difficulties. It not only causes inconvenience, but it also puts your safety in jeopardy. Whenever the engine stalls while driving, the power steering and brakes will go out first.
The first step is to put the brakes on and slowly back up to the shoulder of the road. Turn on the danger lights to let others know what’s going on. Restart the vehicle after the hazard lights have been turned on.
If your car won’t start, you can either call a mechanic or have it towed to a shop where a mechanic can fix it. If your car’s engine stalls while it’s idling, you may not be able to guide it off the road.
If you find yourself in a position like this, switch on your hazard lights and call for help from a tow truck or the police. Getting out of the automobile to push it while driving is not encouraged.
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Danh mục: Car
