Q: After filling my car w/gas, my car won't start

asked by on

The car only starts when I hit the gas. The dash lights up and car sounds like it did before fuel injection if you didn't hit the gas at startup. Last year, Chevy dealer told me to change gas cap. This worked for a year but now happening again. When I went to Chevy this time, they denied telling me to change gas cap but want to diagnose problem by hooking up to computer. Not sure this will help since I don't have a check engine light on at all. Afraud they will tell me that they want to start replacing everyhing that has to do with the fuel system. All other times my car starts fine.

My car has 99100 miles.
My car has an automatic transmission.

You will need to have the fuel tank smoke tested to see what is causing the fuel vapors to be getting into the engine when you are filling the tank with fuel. You may have a stuck fuel tank vent valve to the carbon canister or the purge valve letting fumes to get into the motor flooding it out causing the hard start.

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. After filling my car w/gas, my car won't start

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: Steering Wheel Locked, Leaking Power Steering Fluid

If your steering is not working properly, I believe it would be due to the major power steering fluid leak. In order to resolve this issue the power steering fluid system must be functioning properly. Once this has been done,...

Q: how do wagner brake rotors and pads compae to stock GM

Hi Jerry. Thanks for writing in today. I am a fan of this brand of brake system components. However, in regards to being "better" than OEM, that's a very difficult question to provide a straight and clear answer. Generally speaking,...

Q: Dash lights and radio randomly turn on and off

Hello. This is something that can be fixed. It is possible that when the starter was replaced, something was left loose and as a result, this has caused the lights on your dashboard to flash on and off. I...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.