Q: Car stalls out of nowhere

asked by on

For the last few of months my vehicle has died on me while driving, no stuttering or anything like that. The engine will just turn off with no warning and the car will coast to a stop. Once stopped the vehicle will not turn over again, as if the battery is dead, however the battery is good as it has been checked. The only way to get the car running again is by jumping it with another vehicle. After that, the vehicle will run fine again until the next occurrence. It seems to be happening around the same time every month, so I believe it may die at a certain number of miles but I'm not certain as I have not taken down mileage at each occurrence as of yet. Air filter has been replaced and diagnostics at a local Auto Zone gave "ECM malfunction" code. I've read that these symptoms could be due to the Crankshaft Position Sensor needing replacement, instead of having to replace the ECM to save money and hassle as there are no Saab Dealers near me that I'm aware of for reprogramming. Thanks

My car has 150000 miles.
My car has an automatic transmission.

Hello. It may be possible that a faulty crank position sensor or wiring are the cause of your stalling. However, in most cases, a vehicle with a crank position sensor fault will not need to be jump started in order to start again.

A few things I would check are the crank position sensor and the associated wiring, as well as the battery cables and battery. Keep in mind that the ECM malfunction code is a great indicator that the ECM probably needs to be replaced, or at least reflashed. If you need help with a diagnosis, a certified professional from YourMechanic can come to your car’s location to inspect the stalling problem and follow through with repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car stalls out of nowhere

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: Sulfur smell coming from exhaust

A rotten egg smell coming from the exhaust is almost exclusively a result of a failing catalytic converter. It is caused by the catalytic converters inability to break down the sulfur created by the engine during normal operation. A failing...

Q: Have new fuel pump but 2002 Saab 9-3 is stuttering and dies while drivjng

Hello, thank you for writing in. If you have reason to believe that the issue is fuel related, start by testing the fuel pressure at the engine. This can be done with an in-line gauge, and is relatively easy to...

Q: Where is the transmission position sensor location on a 2000 Honda civic

Hello. This sensor is located inside of the center console if you are talking about the transmission position sensor. This vehicle doesn't have a transfer case so I am assuming that this is what you are looking for. If it...

Related articles

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
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.