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Almost like Vapor Lock???

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Old Jun 15, 2026 | 09:58 AM
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Default Almost like Vapor Lock???

Hey Everyone,

Need some thoughts on a very strange occurrence this past weekend. Have a 2016 that has had all scheduled maintenance up to this point, with about 145k miles. Was shopping at the big Club store and after loading the car, drove over to the gas station to fill up. Perhaps a 3-4 minute wait. After pumping gas, the car wouldn't start. Battery Good, Starter Good, you could hear a nice, strong crank, but the engine just didn't want to start, as if there was zero gas getting to her. Tried cranking like this for a few times and nothing. Waited a couple minutes and tried restarting and having the accelerator depressed for a bit, and nothing. She sat at the pump for about 10 - 15 minutes, then finally she turned over with a weak engine start (Tach was a bit lower than normal). Pressed on the accelerator to give her some gas and the engine smoothed out. Before that time, never had a problem starting. Since that time, haven't had a problem starting.

I threw some fuel injector cleaner in the tank after this occurred to clean anything out, but is this a sign of something to come or chalk it up to a one-time fluke?

Thoughts?

Last edited by lexitaxi; Jun 15, 2026 at 12:53 PM.
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Old Jun 15, 2026 | 02:23 PM
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Originally Posted by lexitaxi
Hey Everyone,

Need some thoughts on a very strange occurrence this past weekend. Have a 2016 that has had all scheduled maintenance up to this point, with about 145k miles. Was shopping at the big Club store and after loading the car, drove over to the gas station to fill up. Perhaps a 3-4 minute wait. After pumping gas, the car wouldn't start. Battery Good, Starter Good, you could hear a nice, strong crank, but the engine just didn't want to start, as if there was zero gas getting to her. Tried cranking like this for a few times and nothing. Waited a couple minutes and tried restarting and having the accelerator depressed for a bit, and nothing. She sat at the pump for about 10 - 15 minutes, then finally she turned over with a weak engine start (Tach was a bit lower than normal). Pressed on the accelerator to give her some gas and the engine smoothed out. Before that time, never had a problem starting. Since that time, haven't had a problem starting.

I threw some fuel injector cleaner in the tank after this occurred to clean anything out, but is this a sign of something to come or chalk it up to a one-time fluke?

Thoughts?
Did you top it off or stop at the first click? This is just a guess. Over fueling may cause an issue wthl the vapor system, again, just a guess.

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Old Jun 16, 2026 | 07:02 AM
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I usually top it off to the nearest whole $0.05 or $0.10, but don't recall how overboard I may have gone this last time. But definitely something worth to consider.
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Old Jun 16, 2026 | 12:03 PM
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Originally Posted by jollick
Did you top it off or stop at the first click? This is just a guess. Over fueling may cause an issue wthl the vapor system, again, just a guess.
I second this.
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Old Jun 19, 2026 | 07:12 PM
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Update: today she threw a check engine light and the code led them to determine that the gas cap was faulty. Replaced the cap, we shall see if she remains stable.
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Old Today | 05:10 AM
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When's the last time you changed/replaced the battery? Might be close to needing changed.
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