fuel pump


Old 08-16-06, 08:41 AM
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fuel pump

does the length of time of the the humming sound when fuel pump is first activated indicate the condition of the fuel pump?
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Old 08-16-06, 10:36 AM
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I don't know a lot about elec fuel pumps but it shouldn't take the pump more than a few seconds to recharge the fuel line. If the pump runs longer I would think it would be losing pressure somewhere in the fuel system.
Old 08-16-06, 05:27 PM
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I would guess most run from 1-3 seconds on key-on. If the pump was worn (or there were other problems) that made the pump run, let's just say for argument sake, 10 sec's, 20 sec's, whatever; I think the problem would show up with other symptoms, i.e. hard starting, stalling, etc.

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