2001 MERCURY SABLE FUEL PUMP PROBLEM

  • Tiny
  • Harpwh23
  • 2001 MERCURY SABLE

Engine Mechanical problem
2001 Mercury Sable 6 cyl Front Wheel Drive Automatic 104000 miles

fuel pump not starting intermittently. Relay cycling ok 2 seconds with key on without failure, remove relay and jump 12 volt and fp lead pump comes on 8 out of 10 times. Could inertia switch have dirty n/c contacts and where does the fuel pump ground lead terminate on chassis

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Tuesday, January 12th, 2010 AT 1:18 PM

3 Replies

  • Tiny
  • BMRFIXIT
  • EXPERT
  • 19,542 POSTS

If switch fail will not start at all and need to be reset
if relay Supplying power

Suspect pump module

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Sunday, January 17th, 2010 AT 7:31 AM
  • Tiny
  • Harpwh23
  • MEMBER

Reply from sender:
Found problem to be a high resistance ground, ran sepatate ground wire from black wire of pump harness (ground side of pump motor) to chassis.
Working fine now.

Thanks for your asistance.

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Sunday, January 17th, 2010 AT 8:38 AM
  • Tiny
  • BMRFIXIT
  • EXPERT
  • 19,542 POSTS

Thank you for posting your finding and the fix so others can benefits from it

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Sunday, January 17th, 2010 AT 4:26 PM

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