1993 Chevy Astro power drain

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BABIES250
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1993 Chevy Astro 6 cyl Two Wheel Drive 100000 miles

after trying to jump my husbands car .. i went to work and my car would no start .. 2 hours later it did
.. after a couple days of it acting haywire . i noticed that there was a whining noise coming from the area of my fuel pump ,, when you turn the key over the whining stops . if you walk away then the noise will come back , and the battery will be dead ,, so i guess the first question is can a fuel pump draw power when the car is off and the key is out , second why ..and what else can it be , the fuel pump is less than 2 years old
Dec 30, 2008 at 1:30 PM
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JACOBANDNICKOLAS
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Hi:
When the key is off, the pump should not be getting any power. So in theory, the pump shouldn't do that. Could the noise be coming from pressure leaking from the tank? When you hear it, remove the gas cap to see if it stops.

Let me know what you find.

Joe
Jan 2, 2009 at 5:11 AM
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BABIES250
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hi no it is not pressure in the tank .. it is the pump that is whining someone said check the fuel pump relay
Jan 2, 2009 at 9:40 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Hi:
The relay is under the hood in the power distribution box. My concern is that when the key is off, there shouldn't be power to the relay.

Let me know what you find.

Joe
Jan 2, 2009 at 2:42 PM
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