Skip the auto shop - Our mechanics make house calls

Q: Hi. A few days ago I purchased some gas. I filled the tank. Immediately upon restarting the car the engine sputtered and choked.

asked by on

I cut the car off. Let it sit for a few seconds and restarted. Still severe sputtering. The car hesitated to shut off. 3 days later my check engine light came on and the mechanic indicates that my purge valve is malfunctioning. I find it difficult not to conclude that the two aren't related. In between filling the tank and and the engine light coming on I had an emissions test. It past. My question is can the problem be directly or indirectly related to the bad gas? Thanks.

My car has 170090 miles.
My car has an automatic transmission.

A: Hi, thanks for writing in. I believe that t...

Hi, thanks for writing in. I believe that that bad gas may very well have caused this issue. My first recommendation would be to have all the fuel drained out and the fuel pump relay removed. Then crank the engine until the fuel pressure is relieved. Then the fuel should be removed from the lines. Once this is done, the fuel tank can be refilled with quality fuel as well as some fuel injector cleaner. Once this step is complete, the engine should start back up. If the engine does not start back up, the purge valve may require replacement in order to resolve this issue. I would also recommend choosing a different fuel station for a while to prevent this issue from happening again. Hope this helps, best of luck!

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: My car stutter starts, but only after driving it for a few minutes.

Hey there. This may also be caused by what is called the fuel pressure regulator. This is a unit that helps to maintain the fuel pressure at the proper level. When this is not working properly, the fuel pump may...

Q: Gas gauge needle fluctuates up and down

This may possibly be a faulty fuel tank sending unit. This is a float type designed sending unit that sits inside your fuel tank that monitors the fuel level inside the tank. When this is faulty or failing it can...

Q: Engine overheated, liquid sprayed all over engine and other places.

Unfortunately, it would be difficult to say what exactly happened. From your description, the most likely case is a radiator or heater hose was loose or damaged. Cooling system hoses should not be wrapped with any kind of tape under...

Related articles

How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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...
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.