How does a gas pump know to shut itself off? (1981)

Re:How does a gas pump know to shut itself off? (1981) by keanebean86 on Saturday October 10, 2020 @05:41PM (#24742074)

My old car's charcoal evap canister had turned solid after 20 years. This would cause pressure buildup in the tank that would trigger the shut-off when putting gas in. It was really frustrating just adding $5.

This also illuminated the SES light and, more importantly, would have resulted in a failed emissions test. Instead of spending $250 on a new one I hit the old canister with a hammer to break up the charcoal and it was all good.

Edit: Service Engine Soon

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Re:How does a gas pump know to shut itself off? (1981) by tomonocle on Saturday October 10, 2020 @05:58PM (#24742171)

SRS light is for the Supplementary Restraint System (airbags and seatbelt pretensioners) so unlikely to be related to the filter. Might trip the MIL/Check engine light though!

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Re:How does a gas pump know to shut itself off? (1981) by keanebean86 on Saturday October 10, 2020 @06:03PM (#24742195)

Typo... Service engine soon (SES)

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Re:How does a gas pump know to shut itself off? (1981) by taxcoder on Saturday October 10, 2020 @05:52PM (#24742138)

Probably not the Safety Restraint System (SRS) light. Perhaps the Service Engine Soon (SES) light, which is often the same as the Check Engine Light (CEL).

The hammer idea is new to me. I spent several years working on cars and still like to wrench on the side.

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Re:How does a gas pump know to shut itself off? (1981) by keanebean86 on Saturday October 10, 2020 @06:05PM (#24742207)

It was a typo. SES aka service engine soon.

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Re:How does a gas pump know to shut itself off? (1981) by taxcoder on Saturday October 10, 2020 @06:36PM (#24742390)

10-4

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