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This is a similar question to Why does my gas not fill all the way?.

I have a 2017 Jeep Grand Cherokee. It seems to depend on the pump I go to, but sometimes I have a lot of trouble getting the pump to keep filling. Most time, I can just squeeze the trigger all the way and the pump will deliver fuel until the tank is filled. Once, actually, the pump failed to shut off and a good bit of fuel spilled out before I reacted. Once recently, I had a great deal of difficulty with the pump shutting off with barely a trickle flowing.

I think I may have two questions here, one related to the pump, and the other related to the filler tube.

First: why there seems to be variability between pumps - some will shut off more readily than others.

Second: during a recent filling, I noticed the sound of fuel backing up in the filler pipe just prior to the pump shutting off (consistent with this answer), which it kept doing repeatedly unless it was flowing at a trickle. My question is why this happens sometimes and not others for the same car? Why would there be a blockage only once in a while? This problem occurred toward the end of a period of sub-zero (Celsius) weather; could there have been ice in the filler tube?

  • Have you applied the answers to your problem? ie removed and checked the filler and associated pipes? If not, then you should do... – Solar Mike Mar 18 at 7:29

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