Car is hard to start after putting in gas

Maintenance/Repairs
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1

My car will not start up after adding gas.

I only have this problem when I put in gas.

I went to mechanic and he pulled up codes and they all show that every thing is good. He suggested that the next time that I put in gas to leave the engine running which is flustrating. Has anyone had this problem? Hyundai Sonata 2001 gls

2

I went to mechanic and he pulled up codes and they all show that every thing is good.

If you have codes, everything is not good. Did you get a list of the codes? They should be real codes in the format [P1234}

He suggested that the next time that I put in gas to leave the engine running which is flustrating.

Yea, and it is also illegal and unsafe. I think you need a new mechanic.

3

Others on this board have had similar problems. Do you top off the gas? Don’t! Presumably this can force liquid gasoline into the system that captures gasoline vapors from escaping into the atmosphere. When the pump shuts off the first time, you are done filling.

4

It varies from car to car. My Mustang is full at the first click, my Bronco on the other hand is not, I can usually get another 3 gallons before it’s truly full.

5

Sounds similar to this link: http://community.cartalk.com/posts/list/2142613.page

Sounds like the purge valve in the EVAP system.

6

I don’t get the obsession some people have with stuffing every drop of gas they can possibly fit into a tank. If the pump clicks off, and by filling the filler neck you can get another gallon or two in there, what of it? You’re not saving any money. You’ll be back at the gas station for more gas anyway, and getting an extra 30 miles out of the tank isn’t going to change anything except possibly damaging your vehicle.

Just pump till it clicks, then call it a day.

7

I will try the putting in gas tomorrow with the engine on… I don’t think it will solve my problem. Goldwing, thank for the link. I read it and I will see what happens. First I have to locate that device/part and have it installed. It really sounds like the solution. I need a resolution.

8

Your car is equipped with a system called on board vapor recovery which allowed the oil companies to remove those bulky elephant snorkels they once had to use to capture refueling vapors. Now each car owner must capture his own vapors. These systems are not perfect and they can be overloaded, especially in hot weather, so in effect the engine becomes “flooded” when starting after refueling and these captured vapors find their way into the engine which is unable to deal with them all at once…

9

Hello: When reading your problem you mentioned some-one said try filling it with the engine running. Not a smart thing to do. You will notice most gas pumps say turn off engine when refuelling. You might blow the whole place up. Be careful & good luck.

10

Thanks for the reponse. I am going with Goldwing link to a solution… I appreciate all of your help in resolving this situation.

11

Slavinka…

By putting gas in your car while it is running you are endangering your life AND the lives of innocent people around you at the gas station.

DO NOT BE FOOLISH. NEVER GAS AN AUTOMOBILE WHILE THE ENGINE IS RUNNING.

Please read your Owner’s Manual about this, or observe the large warning signs present at the gas station. Also, DO NOT go back to the mechanic who made such a totally irresponsible suggestion, no matter how good and/or inexpensive he is.