A dead battery, an alternator issue, or a bad starter are the three most frequent causes of a Hyundai Sonata not starting. To speak with a specialist about your problem, look through our network of RepairPal Certified stores close you.
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faulty battery
The most likely cause of a Sonata’s engine not starting or starting extremely slowly is a weak or dead 12v battery. If the starting issue is related to the battery, further investigation and a battery voltage test will reveal this. You can do a test to measure the voltage between the battery poles, check the acid level, and evaluate the starter battery’s condition.
If a new automobile battery was installed, it’s possible that it hasn’t yet operated to its maximum potential. Nothing to be concerned about. A brand-new battery can only reach its maximum capacity with time.
Why won’t my Hyundai Sonata start?
(ski boots, high heels, etc.) may prevent you from using the brake and
1. Keep the smart key with you or leave it in the car.
2. Ensure that the parking brake is set securely.
3. Position the shift lever in P (Park).
4. Press down on the brakes.
5. Depress the button to start/stop the engine.
6. After the vehicle hasn’t been washed or in exceptionally cold weather (below – 18°C or 0°F).
operated for a number of days without hitting the accelerator, allowing the engine to warm up.
setting the lever to P (Park). You may put if the flow of traffic and the state of the roads allow
When the car is still moving, place the shift lever in the N(Neutral) position and
- Though the vehicle is far from you, even if the smart key is inside of it,
- If any door opens when the engine start/stop button is in the ACC or ON position
Children should not touch the engine start/stop button or any other vehicle controls.
- If the smart key is malfunctioning or the battery is poor,
- You cannot start the engine normally if the stop lamp fuse is blown.
- The engine start/stop button shouldn’t be pressed for longer than five seconds unless
- Press the smart key button to release it from the holder.
Turn the key inward and pull it out. If you forcefully remove the smart key without first doing so
Why won’t my Hyundai Sonata start?
This is really annoying! My Hyundai Sonata did not start this morning when I tried to start it. Before, everything appeared fine. Why wouldn’t a Hyundai Sonata crank?
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I’m sorry to hear that starting your automobile is a challenge for you. There are a few potential causes for your Hyundai Sonata’s starting problems. The most likely explanation is that your battery is dead or broken.
A Hyundai Sonata won’t start most of the time simply because the battery is dead. Fortunately, fixing this problem is also the simplest. You almost probably have a dead battery if none of the electrical systems turn on. Attempt to jumpstart your Hyundai. The likelihood that this will solve the problem is fairly high.
If jump-starting doesn’t work, your battery can possibly be harmed. Check the battery visually for any signs of damage. The problem is most likely being caused by it if it is bloated, leaking, or showing significant corrosion near the terminals. Sometimes you can use baking soda to clean the terminals on your own. You all require a new battery for any additional damage.
You most likely have a damaged alternator or a malfunctioning starter if you are certain the battery is in fine operating order. You all need to have the broken part fixed or replaced by a mechanic.
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Why did a Hyundai Sonata turn off while it was moving?
Transmission malfunction: The torque converter, which replaces the manual clutch in a car with an automatic transmission, is in charge of transferring power. The converter won’t function properly if the torque converter is damaged or if the transmission fluid level is low; as a result, the vehicle won’t be able to sustain power at low speeds, which results in the engine cutting out. This problem can also be brought on by a broken torque converter solenoid or TCS.
The fuel pump is in charge of moving fuel from the tank to the engine regardless of low fuel pressure, filthy or damaged fuel injectors, or a faulty fuel pump. Low fuel pressure from a damaged fuel pump can lead to an uneven stream of fuel being delivered to the engine. This doesn’t matter as much at high speeds, but at low speeds, even a little interruption in the fuel delivery might cause the engine to stall. A precise amount of fuel is sprayed out by the fuel injectors, and at the right moment, it is ignited by the spark plugs. Over time, injectors can get clogged or unclean, which causes irregular spray or no spray at all.
Bad oxygen sensor or mass flow sensor: The oxygen sensors and mass flow sensor let the vehicle adjust the air-to-fuel ratio by detecting how much oxygen is entering the fuel stream. Your vehicle won’t run as efficiently if the oxygen level is too high or too low. The car will continue to run at driving speeds, just like with low fuel pressure, but this insufficient power won’t be able to fuel the vehicle when it slows down.
Wires that are loose or rusted in the wiring harness: An ignition that fires inconsistently will cause an easily stalled engine. The vehicle can quickly lose voltage and won’t have the power it needs to remain running when you slow down if the wires are not in steady, dependable, and consistent contact with the ignition circuit.
Idle air control actuator malfunction: During idling, the engine’s RPMs are controlled by the idle air control actuator. The electronic control unit (ECU) sends information to this actuator, letting it know what RPM to keep the engine at for a secure and smooth idle. When the actuator is broken, the engine is not sent a signal for the idle speed and shuts off.
EGR valve obstruction or restriction: Depending on whether the EGR valve is jammed open or closed, a clogged, unclean, or damaged EGR valve might cause your automobile to stall, idle incorrectly, or sputter.
How much does a Hyundai Sonata starter cost?
Estimated cost to replace the starter on a Hyundai Sonata. Hyundai Sonata starter replacement typically costs between $397 and $517. The cost of labor is expected to be between $86 and $109, while the cost of parts is between $311 and $409.
How come I have electricity but my car won’t start?
If your headlights work but your car won’t start, your battery is charged but the starter or ignition isn’t working properly. A starting engine can be jumped using a charged battery if the starter or ignition is the issue.
How is a Hyundai Sonata battery charged?
- To make sure your car is completely charged and functional, drive to the closest charging station.
You should consult a professional if this issue persists or your car isn’t charging properly since you might require a new 12V battery or a conventional jumpstart.
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Why won’t my car start after it switched off while I was driving?
When you find yourself in this scenario, safety should always come first. Your safety and the safety of those using the road nearby are of utmost importance. Once you are secure, quickly search for any hints as to why this is taking place. The following advice could assist you in securely exiting this predicament:
Move the vehicle off the road or all the way to the right side. The hazard lights should be activated first to alert approaching vehicles that there is an issue with your car. Even though the steering may be difficult, do your best to manage it and use the handbrakes to park the car because the regular brake pedal won’t function properly.
You have a problem with the battery charging system if the dashboard warning light is on. The alternator or the battery itself may be the issue. Verify the electrical connectors, terminals, and systems. If not, tighten the drive belt again or inspect it for damage.
Examine the gasoline filter if the automobile dies while moving but then restarts. It might also be the result of a fuel pump that isn’t strong enough to maintain a consistent pressure. To quickly locate and identify the defect, check the fuel pressure and the gasoline lines.
When a car stops while being driven and then restarts later or after cooling down, there is an issue with the engine management system. In this situation, you must carefully inspect the position sensors. Examine the crank position sensor since a malfunction causes it to give the crankshaft the incorrect position, which causes a misfiring sequence that causes the engine to stall.
How much does a Hyundai Sonata car battery cost?
Estimated cost of replacing the battery in a Hyundai Sonata. Hyundai Sonata batteries typically cost between $268 and $275 to replace. While parts are priced at $242, labor costs are predicted to be between $26 and $33.
How long do the batteries in a Hyundai Sonata last?
The normal battery life of a 2021 Hyundai Sonata is 3 to 5 years, although actual battery life might vary greatly based on factors including battery size, battery type, weather, and driving behavior. Even so, a partially charged battery does not necessarily indicate that it is performing at its best.
Why did my automobile suddenly stop?
Crankshaft position sensors that are malfunctioning or fuel system problems are the most frequent causes of vehicle shut-offs while in motion. It can also occur as a result of a faulty alternator, ignition switch, empty gasoline tank, or problems with the car’s engine sensors.
Are Hyundai Sonata engines being recalled?
The issue: Gasoline leaks from the fuel pipe may not be stopped by heat-resistant tape that was added during a previous recall, increasing the possibility of a fire.
The remedy: Free of charge to the car owner, Hyundai stores will replace the low-pressure gasoline hose.
Owners of impacted vehicles should call Hyundai at 855-371-9460 to get in touch with the manufacturer. As of July 5, 2022, Hyundai will send them a letter informing them.
22V312 is the NHTSA campaign number. These exact vehicles have already undergone recall 20V121 repairs. The recall number for Hyundai is 227.
To see if your car is still subject to a recall, check: You may find out whether there are any open recalls for your car on the NHTSA website.
If you enter the 17-digit VIN of your automobile onto the NHTSA website and a recall doesn’t show up, your car doesn’t currently have one. We advise frequent checking because recalls are frequently issued by automakers and involve a large number of older vehicles.