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Author Topic:   Elec. fuel pump question

Posts: 597
From: Sarasota, Fla. USA
Registered: Jun 99

posted 12-12-2001 09:07 AM     Click Here to See the Profile for Gary   Click Here to Email Gary     Edit/Delete Message   Reply w/Quote
When you shut off the fuel pump, is it normal for the fuel in the lines to try returning to the fuel tank? I would think there should be a check valve in the pump to keep that from happening but all three pumps iv'e tried allow the fuel to return to the tank when shut off.

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Posts: 121
From: Connersville, IN
Registered: Jul 2001

posted 12-12-2001 12:27 PM     Click Here to See the Profile for clevelandstyle     Edit/Delete Message   Reply w/Quote
I've never checked the fuel line with clear tubing like you have. I can tell you that when I turn on the fuel pump after it has been sitting for a while, it takes a few seconds to build pressure. Based on that, I would say that some of the fuel does return to the tank. I still have never experienced the pressure drop like you have once the pump is running.

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