How can you manually run the fuel pump prior to removing the fuel tank to empty a full tank?

2000 MERCURY MOUNTAINEER
190,000 MILES
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LONESTAR59
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  • 3 POSTS
I have to change my fuel pump but hav a full tank of fuel (25 gal).
Dec 28, 2011 at 2:22 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
I assume you have a pump failure which means you cannot operate it. you need an external pump hook up to drain your tank.

Roy
Dec 28, 2011 at 2:26 PM
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LONESTAR59
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  • 3 POSTS
No my pump isn't producing the required pressue to allow the car to run, i.e. weak output.
Dec 28, 2011 at 2:36 PM
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LONESTAR59
  • MEMBER
  • 3 POSTS
No my fuel pump just isn't providing the proper pressue to allow car to tun, weak output but still runs.
Dec 28, 2011 at 2:37 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
then you can power it up through the inertia switch by applying 12 volts to the wire to the pump.

Roy
Dec 28, 2011 at 2:40 PM
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