Skip the auto shop - Our mechanics make house calls

Q: As I was driving my car it suddenly shut down on me. Battery is charged what can be the problem

asked by on

As I was driving my car it suddenly shut down on me. Battery is charged what can be the problem
My car has an automatic transmission.

Hi There, This may be related to many different possibilities, some of which may be related to a lack of spark or possibly timing issues and some of which may be related to a fuel delivery problem or a combination of both. Things like ignition coils, crankshaft position sensor, spark plugs, spark plug wires or ignition module are all components that help to create spark and control ignition timing which may cause the motor to not produce spark or the correct timing needed to ignite the fuel in the motor.

In the case of a fuel delivery problem, this may be related to low fuel pressure, faulty or dirty fuel injectors, a faulty or dirty idle air control valve (this relays information about air intake to the computer which makes fuel adjustments), or potentially a faulty fuel pressure regulator or fuel pump. Fuel delivery problems will typically not allow the proper amount of fuel to be delivered to the cylinders which results in a lean fuel condition which can cause backfiring or simply cause the motor not to start as a result of fuel starvation. In some cases too much fuel may be supplied to the motor causing too much fuel to be introduced to the motor faster than what it can burn it. This results in the motor being flooded with too much fuel also causing it not to run properly. Any of the above possibilities can create an imbalance in the proper air/fuel ratio as well which will cause the motor to run very rough or not at all. In any of the above situations your car should have triggered a check engine light to come on which would have also stored a fault code in the car’s computer. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • As I was driving my car it suddenly shut down on me. Battery is charged what can be the problem

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Windshield cracked randomly, is it safe to drive?

The windshield issue in your car is common enough for many owners to make the same comment. While Nissan does not currently offer any bulletins or recalls about the issue, nor is there any known cause, it is recommended to...

Q: How do I unlock the doors?

The remote keyless entry (RKE) key fob makes it very easy to unlock your doors. Press the unlock door button on the RKE transmitter once to unlock the driver’s door, and twice to unlock all of the doors. You can...

Q: slow cranking randomly

You will have to have the fuel pressure tested to see if the system is holding fuel pressure at the injectors after you shut it off and see if the fuel pressure meets specifications. If the fuel pressure leaks down,...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.