Skip the auto shop - Our mechanics make house calls

Q: After driving on the freeway my car will randomly shut off at a stop it will start right back up and be ok this has happened a few

asked by on

what could be the problem with my car randomly shutting off at a stop after driving on the freeway but then starting back up and being ok , this has happened a few times in the past month .

My car has 110000 miles.
My car has an automatic transmission.

A: Hi there, thanks for writing in about your ...

Hi there, thanks for writing in about your 2005 Pontiac Sunfire. You may be having a problem with the torque converter lock up solenoid sticking and the converter staying locked up until the vehicle stalls. The engine will restart and work fine until on highway again. The stall will feel like chugging or like a car with a clutch not pushed in. When you feel the chug as you approach a stop, try putting the engine in neutral to see if this prevents the engine from stalling. You may need to have the overdrive solenoid replaced. If you would like to have the problem resolved, a certified technician from YourMechanic can come to your car's location to diagnose the stalling issue and help you proceed with repairs.

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!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: can i put dexos oil in my sunfire?

You sure can, it needs to be 5w-30 which is the correct viscosity (flow rate of oil) for your vehicle. I recommend the use of this oil.

Q: I tried to crank it but it wont start and the lights dim when trying to crank it

Starting systems are typically very simple. For the most part, you will be concerned with the battery and the starter. It sounds like your battery is dead. I would first attempt to jump start it. If using another car...

Q: Green light flashing around D4 indicator

When your transmission D4 light is blinking, this means your transmission has stored a code. The code would need to be retrieved and diagnosed to see what the problem is. These transmissions were pretty reliable, but had problems with 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...
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.