Q: Hard time starting car after refueling

asked by on

Whenever I put new gas in the car, it has a hard time starting. The engine has to stutter for a while before it starts. Also sometimes the engine will rev up and down for a while before it runs normal.

Hello. It sounds like you may have a bad vent or purge valve in the evaporative emissions system. Most of the time this is caused by the purge valve. These valves work to contain the gas fumes in the vehicle until they can be burnt off in the engine at the correct times. If the purge valve is stuck open then these fumes will enter the engine while your are fueling. That will essentially cause the engine to run very rich right after fueling, causing it to run like this. A mechanic would typically remove the valve and check its operation or perform a smoke test.

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. Hard time starting car after refueling

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: My ac works off and on,what can be the problem?

Hello, thank you for writing in. Modern vehicles do not use freon on the air conditioning systems. They use a new type of refrigerant that is far less harmful to humans and the environment. If you used actual freon instead...

Q: Car feels like it is going to cut off

Hi, thanks for writing in. I'd be happy to offer my insight. You engine may have carbon build up on the valves and clogged injectors. I recommend having the combustion chambers and injectors cleaned. Once this is done then I...

Q: When a/c was on, steam from under hood and a/c went warm on a hot day and on another day came out cool for a several minutes

The source of the steam should be the first thing repaired. It is highly probable that once the leak is repaired, the A/C system will begin to work again. There are two fluid sources under the hood that can create...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.