Skip the auto shop - Our mechanics make house calls

Q: Car not starting after putting gas in

asked by on

When i go to put gas in my car afterwards it won't start. I have to step on the gas and restart the car 5-7 times before it runs right. I thought it was a purge valve,but the shop says it's either a intake gasket or a EVAP control valve.

Is it the EVAP control Valve or the intake gasket causing my car not statting after I get gas?

My car has 69000 miles.
My car has an automatic transmission.

A: The most likely cause of the hard start aft...

The most likely cause of the hard start after getting fuel is going to be a leaking fuel vapor purge valve. The leaking purge valve would allow the fumes that build up in the fuel tank while refueling to fill up the intake manifold with a lot of gas fumes causing a hard start or even a no start could happen until the excess fumes are cleared from the engine. The leaking purge valve will also let excessive fumes to enter the intake all the time causing the engine to run richer than normal lowering the fuel mileage your vehicle will get. You can test the purge valve by disconnecting the vacuum line that connects the purge valve to the intake and using a vacuum pump to pull a vacuum on the valve. It should hold a vacuum if the valve is good. If the vacuum leaks then you must replace the purge valve.

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: Engine cranks but wont start.

From what you've described, it sounds like your timing belt teeth are broken off at the crank gear. You may have bent the valves now since the engine was turning and the cam was not. If this occurs it can...

Q: Knocking noise from engine and oil seems to be full? Loud and constant what could it be?

Hello, thank you for writing in. Engine knock can be caused by several different issues. Even with the oil full, if it is not being sent to the places in the engine that need it. Low oil pressure can be...

Q: Noise under my car

Honda Elements are known for sway bar noises. In many instances, replacing the sway bar bushings, especially in the sway bar, will get rid of clunking noises over bumps. Now this is only one possibility but a common issue. ...

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...
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...
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.