Q: while driving the vehicle will just shut off. Its not the altenator or battery. not sure what it could be? please help!!

asked by on

When we are driving it will just shut off. When we try to start it it will turn over just not fully start. Sometimes we can disconnect the battery to reset it and it will start back up without issue. Other Times it takes a while to start again. It doesn't do it until we've drove it throughout the day almost like once its warmed up? Battery and alternator are good. So no idea where to start on what it could be.

My car has 108000 miles.
My car has an automatic transmission.

Hello. Typically when these types of symptoms arise there is an issue with spark. The spark plugs, wires, and distributor are all subject to the fact heat causes expansion. With expansion of the rubber boots, coils, and distributors the voltage may be cut off and the circuit will fail. You may want to start by replicating the issue and checking for proper spark. You can do this several ways, the we recommend using a spark tester because it is safest. If the ignition system checks out, you will want to turn your attention to the fuel supply. The engine will need more fuel when cold than when it has warmed up. The fuel delivery system may be getting a bad reading from the sensors, or may be experiencing another type of issue. Start by inspecting the spark system, and then check the fuel system.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. while driving the vehicle will just shut off. Its not the altenator or battery. not sure what it could be? please help!!

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: Check engine light is on car sluggish and shaky

Your check engine light is on due to the misfire and engine running issue and should not be due to the oil change overdue. You should have the check engine light scanned then the code can identify that cause of...

Q: Why won't my car move?

Hi there. It sounds like you have a failed forward brake band or 1-2 shift solenoid failing. Without a proper diagnosis this is simply an educated guess. I suggest having a qualified technician perform an inspection to avoid replacing unnecessary...

Q: 2008 Kia Sedona, 3.8L V-6, transverse : check engine light constant on; occasional random misfire(P0300) with P2198

If you are getting random misfire codes and O2 sensor codes after getting fuel i suggest you have a fuel sample test to see if there is excessive water in the fuel. You can try adding some drygas in the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...