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Scion xB 2nd-Gen Drivetrain & Power Engine and transmission discussions...

gas pump shutting off prematurely

Old 10-31-2017, 03:16 PM
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Question gas pump shutting off prematurely

The last 2 times I got gas (filled almost empty tank at 2 different places), the pump kept shutting off over and over again like it thought the tank was full when it was far from it. I had to keep re-squeezing the handle every few seconds until I knew it was full for real. The first time, I thought it was a broken gas pump, but since it happened a second time, my thoughts have changed.

Any thoughts from any of you?

(Moderators, feel free to relocate this thread for I really didn't know the best place for this subject.)
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Old 11-14-2017, 02:18 AM
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The tank may not be venting properly. Could be anything from bugs building nests in the vent lines to a bad electrical connection at a vent valve, if the car has one. Try playing with things around the charcoal canister
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