Skip the auto shop - Our mechanics make house calls

Q: My car's engine intermittently stalls

asked by on

Has run great, but lately I'll be driving and engine will just shut off. I pull over and it starts right up and I drive away. Today it stalled on me, I couldn't pull over right away and it just started by itself. We had the fuel pump changed for a noise issue 2 1/2 yrs ago, they changed the relay and filter also. Any ideas?

My car has 185000 miles.
My car has an automatic transmission.

Hello. If the engine is just shutting off then it may be an electrical issue with the ignition switch or the main relay. If the engine starts sputtering before it turns off and then it starts up again then that new fuel pump may have an issue or it may have an ignition problem. I have also had crankshaft position sensors fail on this engine and cause this.

Since it is intermittent it can be hard to diagnose. I usually install a scan tool to monitor the sensor readings when the vehicle is going to stall. This can indicate to me if it is a sensor issue or if it is related to the fuel system. If those look fine then I look further into the ignition system to see if there is a failure in the secondary ignition system.

If you need to have this intermittent stalling problem checked, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair this problem.

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

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: I was driving down the road and car died and will not start it sound like it wants when I check radiator fluid it was empty

Hello, thank you for writing in. You will want to find out why the coolant is empty. However for the moment, you need to treat the stall and no start situation separately from the lack of coolant issue. Chances are...

Q: How can I prove my car dealer's service department broke the CD in my Hyundai Santa Fe?

Hi there. Unfortunately, there is really no way of proving when damage was done to an electrical, accessory component. This happens more often than not when work is being done behind the dashboard or when removing dash components is needed...

Q: It cranks doesn't start new batteries, oil pressure switch new pmd, new injection pump. new alternator, new glow plugs.

Hello. A crank but no start condition can be caused by many things. A few common causes are a faulty crank position sensor, or issues with the fuel system. The crank position sensor is used in the engine's fuel calculations,...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...